They also have every incentive to do so. From 2010 to 2016, the price of wind and solar energy dropped by 60 and 80 percent, respectively. With the global demand for energy projected to rise 30 percent by 2040, green energy producers and related manufacturers will see an increase in business activity, including the steel industry. Steel is used to produce every single type of renewable energy, and demand for high-quality steel is looking to increase.

Take a look at some of the first movers transitioning to renewable energy and the biggest drivers of renewable energy demand in the global market.  

SEE ALSO: Building a Green Energy Future with Steel

Google, the biggest corporate consumer of renewable energy

At the end of 2017, Google purchased 3 gigawatts of renewable energy, enough to power all of its 15 data centers and offices around the world for an entire year. Google started purchasing wind power from a farm in Iowa back in 2010. Today, Google purchases most of its renewable energy from wind and solar energy farms in South Dakota, Oklahoma and Iowa.

Inside Google’s colorful and green data centers. (Source: Business Insider)

What’s significant about Google’s renewable energy consumption is that even if it does not use up all of the energy for its own operations, the company sells it back into the market in regions where they operate. Then, they retire their Renewable Energy Certificates (RECs), meaning it is no longer re-usable or re-issuable. In doing so, it removes energy supplies from the market and forces producers to keep generating new renewable energy supplies, instead of trading existing RECs. Google is fully backing the renewable energy industry, creating more business for generators and materials suppliers such as steel.

SEE ALSO: India: A Rising Sun in the Global Renewable Energy Industry

With the rapid growth of internet-based services, data centers are also increasing, engulfing extensive amounts of energy. Data centers already account for 3 percent of the world’s entire electricity consumption, and 2 percent of total greenhouse gas emissions, equivalent to that of the airline industry. It’s a relief that companies like Google, with a growing reliance on data centers, are finding sustainable ways to fuel their business, and other companies are following suit.

Apple’s green data centers

Apple is another company that is making bold strides toward renewable energy. The company stated all of its data centers run on 100 percent renewable energy and its operations over 23 different countries run on 93 percent renewable energy.

Apple’s data centers run on 100 percent renewable energy. (Source: Digital Trends)

Apple joined RE100 in 2016, but the company is no newcomer to green energy. In 2015, Apple issued USD 1.5 billion in green bonds to finance eco-friendly business endeavors. Then in 2017, Apple issued another USD 1 billion in green bonds in response to U.S. President Donald Trump’s withdrawal from the Paris climate agreement.

In 2017, President Trump shocked the world by withdrawing the U.S. from the Paris climate agreement. (Source: Fortune)

Because Apple’s business also includes manufacturers who do not follow the same sustainable practices, Apple’s next challenge is to filter through their suppliers and select those that are committed to powering their operations with renewable energy. So far, 8 major suppliers have come on board.

Microsoft and Facebook are on their way

Microsoft’s global operations have been fully powered by renewable energy since 2014. This includes manufacturing, licensing and logistics. All of its data centers are 100 percent carbon neutral, but Microsoft is planning a slow but sure transition towards renewable energy. As of now, about 44 percent of the electricity that powers Microsoft data centers come from wind, solar and hydropower, and their first target is to reach 50 percent by the end of this year. They have also stated they will strive for 60 percent in the next 10 years.

Microsoft is building new data centers all over the world, including the UK (pictured), and plans to run them on green energy. (Source: WindowsAble)

Just like Microsoft, Facebook looks to power 50 percent of all its data centers with renewable energy by the end of this year after successfully reaching its 25 percent target back in 2015. Facebook has a large presence all over the globe, and already, their data centers inLuleå, Sweden, Altoona, Iowa, Fort Worth, Texas and their Menlo Park headquarters are running on 100 percent green energy. Moreover, Facebook plans to power their newest data centers to be built in Ireland, Denmark, New Mexico, Nebraska, Ohio and Virginia with renewable energy.

Facebook’s newest data center in Virginia will run on 100 percent renewable energy. (Source: Adweek)

The largest and most influential corporations in the world that operate the ever-growing, energy-extensive data centers are making the switch to green energy. Their changing business practices will further boost the renewable energy industry, create new jobs and open new business opportunities for the steel industry. As steel plays a vital role in supplying parts for renewable energy infrastructure, high-quality steel solutions will be in increasingly high demand.  

Cover photo courtesy of Rambus.

The ever-growing demand for electric motors can be attributed to several factors including the growing interest in eco-friendly and fuel-efficient motors and improved living standards in a number of densely-populated countries around the world. Plus, new innovations in home appliances are not only driving the demand for electric motors, it’s changing the way they are shaped, sized and put together.

So, how exactly do electric motors work?

An electric motor is in pretty much every electronic appliance. The motor is what turns electricity into mechanical movement. When an electric motor is charged with electricity, the axle, or metal rod turns and creates movement. The motor itself is powered by two opposing magnets – the permanent magnet and the electromagnet. When electric current is applied to the electromagnet, it pushes against the permanent magnet creating rotary or linear movement.

The inside of an electric motor. (Source: Stiavelli)

Many parts of electric motors are made of electrical steel, including the motor core. Electrical steel is an alloy of iron and silicon and can generate various magnetic properties. High-quality electric steel such as POSCO’s Hyper NO will have a small hysteresis curve that minimizes energy loss. POSCO’s technology also reduces core loss by 5 percent as well as motor noise by 5dB.

Electric Motors in Home Appliances

Home appliances currently account for about a third of total energy consumption and attribute to 45 percent of greenhouse gas emissions in an average household. Energy-efficient home appliances are in high demand due to increasingly stricter environmental regulations, consumers’ desire to save on utility bills as well as their desire to lower noise output from appliances such as dishwashers and dryers.

In order to maximize energy efficiency, engineers and manufacturers turn to high quality non-oriented electrical steel such as POSCO’s Hyper NO to meet consumer needs.

SEE ALSO: Why Electrical Steel Can Make All The Difference In EV Motors

Next Generation of Home Appliances

Aside from traditional home appliances, there is a growing number of innovative, next-generation home appliances that rely on high-quality electric motors for maximum efficiency, cost effectiveness and also range of movement.

These days, robots are part of the average household in the form of vacuums, personal home assistants, alarm clocks and more. Unlike traditional home appliances such as refrigerators and washing machines that are stationary, innovative robot appliances move in different directions. This is where actuators come in. Actuators are electric motors in a gearbox, and the gearbox essentially gives electric motors added torque, or rotational force, that allows the robot to move in a variety of directions, including twisting and turning.

Actuators are what propels a variety of movement in robots. (Source: Motion Control Tips)

Moreover, engineers are now working with modular actuators to build robotic structures for a greater range of movement, speed and positions through segmented parts. Highly efficient, relatively low-cost and diverse actuators are coming together with AI sensors, voice recognition and smart controllers to breed a new generations of home appliances.

There are 3 different types of actuators based on how they are powered, and electrical actuators are most commonly found in home applications. Compared to the other types of actuators, electric actuators have lower speed and power, but are easy to install and control. Because they are often modular and can be applied for customized purposes, the resulting robots have a great range of motion to fit the new roles home robots are taking on.

Examples of Applications in the home

Here are some of the latest robots for the home that require advanced electric actuators and are changing the way people think of home appliances.

Aeolus Bot

The prototype for the Aeolus Bot was introduced at this year’s Consumer Electronics Show (CES) in Las Vegas. The robot can move around the nooks and crannies of the home learning different objects and places with its smart software. It can also retrieve different objects and clean the house using other home appliances.

The Aeolus Bot responds to voice commands. (Source: Unbox Holics)

Not only that, Aeolus also has Amazon’s Alexa software, recognize its owner’s face and can alert family members of any disturbances.

Sony Aibo

Sony’s Aibo looks and moves like a dog. With its voice recognition software it can respond to commands, recognize faces and perform tricks. Although the furless bot may not be able to swim or jump the fence, it can pick up a objects, sit, roll over and move much more dynamically than other home robots.

The Sony Aibo can do simple tricks on command. (Source: The Verge)

The changing face (and shape) of home appliances is putting actuators to full use with their wide range of movement, speed and positions. Highly-efficient electric motors and actuators will continue to be in high demand as new innovations in home appliances and robots keep rolling out.

Cover photo courtesy of GE Reports.

However, these building projects are on another level of huge, and with all the megacities popping up throughout the country, China boasts many of the biggest infrastructure projects in the world. Here’s the Steel Wire’s look at some of the most impressive to date.

Three Gorges Dam

China is home to the largest dam in the world, measuring 1.5 miles in length and sitting 60 (!) stories tall. The Three Gorges Dam took 1.92 million tons of rolled steel to complete, along with 10.82 million tons of cement and 1.6 million cubic meters of timber. The dam opened in 2003 on the Yangtze River and last year, generated a record-high 97.8 billion kilowatt-hours of electricity, 4.35 percent higher than the previous year.

The Three Gorges Dam is the biggest dam in the world and is made up of 1.92 million tons of steel. (Source: Wikipedia)

Beijing Capital International Airport

Beijing Capital International Airport (PEK) was the second largest and busiest airport in the world in 2016, just behind the Hartsfield–Jackson Atlanta International Airport in the U.S. PEK recorded 94,393,454 passengers that flew in and out in 2016, a 5 percent increase from 2015, and is easily the biggest airport in all of Asia.

Beijing Capital International Airport is the biggest airport in Asia, and second in the world. (Source: Top China Travel)

The first phase of the airport cost USD 3.5 billion and was completed in 2008, but in order to handle the growing number of passengers, an expansion project is planned for 2025. The estimated 5-year project will almost double PEK’s capacity and cost an additional USD 13 billion.   

Jiaozhou Bay Bridge

China is also home to the longest sea-crossing bridge in the world. The massive structure stretches over 26.4 miles and connects the cities of Qingdao and Huangdao. The 110ft width accommodates 6 traffic lanes that are supported by 5200 steel pillars.

The Jiaozhou Bay Bridge is held up by 5200 steel pillars. (Source: Feel the Planet)

The bridge first opened in 2011 and took USD 2.3 billion and over 10,000 workers to build. The Jiaozhou Bay Bridge also took 450,000 tons of steel to complete, allowing the bridge to be able to withstand earthquakes up to 8.0 in magnitude, typhoons and the force from a 300,000-ton object.  

Jiuquan Wind Power Base

Not surprisingly, the largest wind farm in the world located in China. Jiuquan Wind Power Base is made up of 7,000 turbines that generate enough electricity to sustain a small country. The plant was approved in 2008, and the government has pledged an additional USD 17.4 billion by 2020 as part of the effort to develop China’s renewable energy industry. For now, only 3.3 percent of all the electricity generated in China comes from wind turbines. With the additional investment, Jiuquan Wind Power Base will be able to generate a massive 20 gigawatts of sustainable electricity.

The Jiuquan Wind Power Base generates enough energy to power a small nation. (Source: The New York Times)

New Century Global Center

What does the biggest building in the world look like? A mini country. Located in Chengdu, Sichuan province, the New Century Global Center combines a shopping mall, water park, hotels, movie theaters, offices, restaurants, ice rink and more into 19 million sq.ft. of space. The structure is made of glass and steel and measures 500 meters long, 400 meters wide and 100 meters high. Designed by architect Zaha Hadid, it even has artificial sun for the perfect weather, 24 hours a day.

The New Century Global Center located in Chengdu is the largest city in the world. (Source: Thousand Wonders)

Port of Shanghai

The world’s biggest ports are mostly located in China, and the biggest one is the Port of Shanghai. In 2012, 744 million tonnes of cargo and 32.5 million twenty-foot equivalent units (TEUs) of steel containers passed through the port. The entire area of the port on the Yangtze River covers 3,619km² comprised of 3 main ports: Wusongkou, Waigaoqiao and Yangshan Deep-Water Port. About 25 percent of China’s trade passes through the Port of Shanghai, or 2,000 steel container ships per month.

The Port of Shanghai is the largest port in the world and a quarter of China’s trade passes through it. (Source: Thomson Reuters)

Most recently, the 4th phase of the Yangshan Deep-Water Port was completed, making it the largest automated port in the world. It spans across 2.23 million square meters, and can automatically handle 4 million standard containers per year, or 25 per hour. It was also built to accommodate the heaviest ships in the world.

China is using its steel to build up the country’s infrastructure, and set world records along the way. Besides being impressive in size, the structures are expected to contribute to greater connectivity and economic prosperity throughout China.

Cover photo courtesy of Morgan Stanley.

POSCO GIGA STEEL –  For Automakers

POSCO GIGA STEEL is like the iPhone X or the latest Xbox or PlayStation for automakers. It’s the newest, hottest must-have item for any type of car. Automakers are constantly working to lightweight their vehicles without compromising strength to meet increasingly stringent safety and environmental regulations. In order to offer its auto partners the ultimate solution, POSCO developed POSCO GIGA STEEL, an advanced high-strength steel (AHSS) that comes in 6 different types for a variety of applications in vehicles.

POSCO GIGA STEEL can be applied to different parts of a vehicle chassis. (Source: Renault Samsung)

Applying AHSS, including POSCO GIGA STEEL, resulted in a 26 percent reduction in the total weight of a vehicle. Not only that, POSCO GIGA STEEL emits about 10 kg less carbon emissions than aluminum from a life cycle analysis (LCA) viewpoint. Plus, POSCO GIGA STEEL is about 2.1 to 3.5 times less expensive than alternative options like aluminum. It’s no surprise that leading automakers like Renault Samsung, Ssangyong Motors and GM Korea use POSCO GIGA STEEL, proving it to be the all-time favorite gift for automakers.

PosMAC- For Photovoltaic Structure Manufacturers

Solar energy is the fastest growing source of renewable energy in the world, according to the International Energy Agency (IEA). In India, solar electricity generation capacity quadrupled from 2014 to 2017 as it is the cheapest form of alternative fuel in the country. The government also plans to back the industry with USD 100 billion in investments. India is one of many countries looking to solar energy to meet their country’s environmental goals and stimulate the economy.

As a result, photovoltaic (PV) structure manufacturers around the world are working to keep up with the growing demand and gain a competitive edge with high-quality products. PosMAC is ideal for PV structures because it is highly corrosion resistant and cost-effective. Not only is the material itself lower in costs compared to other materials, PosMAC ensures a long lifecycle, decreasing maintenance costs to give manufacturers an added competitive edge. For such manufacturers, POSCO PosMAC steel is the perfect gift.

Magnesium- For Electronics Manufacturers

Magnesium is a common material in electronic devices such as laptops and smartphones. Magnesium is the perfect gift for electronics manufacturers such as LG and Samsung, as their competitiveness lies in delivering the most versatile, lightweight and convenient devices to their customers.

The Samsung Notebook 9 is one of the lightest laptops available. (Source: CNET)

Magnesium is also increasingly finding its way into the automotive industry, especially for electric vehicles (EVs), as magnesium plates and other parts allow automakers to further reduce the weight of the car. Magnesium will likely be the perfect gift for that manufacturer who is thinking ahead and always experimenting new ways to improve future models of their cars.

Hyper NO- EV Manufacturers

The market for EVs is one of the fastest growing, expected to expand from USD 27.84 billion in 2016 to USD 38.98 billion by 2021, at a compound annual growth rate (CAGR) of 7 percent. Much of the success of EVs lies in its motors that will determine the EV’s efficiency, performance and feasibility for wide-spread use. As such, POSCO came up with the perfect gift for EV manufacturers – the Hyper NO.

Hyper NO is a type of electrical steel used to make electric motors. POSCO’s new technology increases the magnetic flux density and reduces core loss of electric motors, making it the perfect gift for electric motor manufacturers looking for ultimate efficiency.

Stainless Steel Products- For Everyone

There are some gifts that satisfy just about everyone, like a gift card for the movies or the nearest cafe. It’s not super special, but it’s a safe and sure choice for anyone as it is practical and functional.

Stainless steel is the ultimate gift for manufacturers as it’s one of the most widely-used materials in the world for a variety of products including surgical tools, watches, kitchenware, buildings, pipes, artistic sculptures and plenty more. It’s literally the foundation of cities and communities all over the world, and without it, the world would not have the most basic systems in place today. Moreover, stainless steel’s non-corrosive and 100 percent recyclable characteristics make it one of the best gifts for every kind of manufacturer.

No matter the type, there is a perfect gift for every manufacturer with steel. POSCO will make sure to provide even more customized and innovative solutions for its partners and continue to “keep on giving” in the new year.

In major cities around the world, industrial activity is creating visible damages. (Source: International Business Times)

In order to meet this mark, industries need to find sustainable sources of fuel in the near future, or be met with costly penalties. Up to now, the price of non-renewable fuel was too attractive for clean energy to be competitive. However, tighter regulations, major leaps in technology and state-level commitment have birthed a new era of renewable energy.

Energy you can bank on

According to Bloomberg analysts, USD 10.2 trillion will be spent on new power generation by 2040, 72 percent of which will go towards wind and solar photovoltaic plants. By then, the cost of solar electricity will drop 66 percent, meaning by 2021, solar power will be cheaper than energy from coal in China, India, Mexico and the UK. The cost of onshore wind power will decrease by 47 percent by 2040, and offshore wind power by 71 percent thanks to more advanced and cost-effective wind turbines.  

Renewable energy is getting more and more competitive, and companies who don’t make the switch to clean fuel will be left out of the race.

SEE ALSO: How POSCO Sees a Future of Renewable Energy

However, electricity doesn’t fall from trees.

It falls from steel! Tons of steel (literally) are used to extract and convert energy from renewable energy sources.

Wind Energy

Most wind turbines are made of steel, and for an average wind turbine, 140 tons of steel are used. That accounts for 80 percent of all the materials that go into the tower, the nacelle, rotor blades and its supporting facilities. The majority of steel is used to make the tower which serves as the foundation on which the blades turn to generate energy. There are several types of turbine towers, such as steel-concrete hybrid towers, steel truss towers and steel lattice towers, but about 90 percent of all wind turbine towers are made of tubular steel. Also, steel’s non-corrosive properties maximize the lifetime of wind turbines and minimize maintenance costs.

Solar Energy

Solar electricity is one of the most promising types of renewable energy. By as soon as 2030, it can make up 13 percent of the world’s energy, and by 2050, the sun will be the largest source of electricity on earth. And steel will be soaking it all up – the sunlight that is. Steel makes up not only the frame of the solar panels, but the heat exchangers and other related infrastructure. Stainless steel is a great choice for solar panel frames because it is dense, high in strength and has the greatest corrosion-resistance than other light metals.  

SEE ALSO: India: A Rising Sun in the Global Renewable Energy Industry

Geothermal Energy

Mother earth just keeps on giving. There are about 1400 TWh of geothermal energy in the earth’s core that can be harvested by 2050. Geothermal energy gives off extreme heat, so it is vital for the heat exchangers, condensers, pipes, filters, pumps and valves to be corrosion resistant. Otherwise, maintenance costs would be unsustainable and corrosion can contaminate the water as well. That’s why most of the infrastructure related to geothermal energy is made of iron castings, stainless steel and steel alloys.

Tidal Energy

There’s plenty of energy in the sea as well. In the world’s oceans, there are about 1 million megawatts of usable tidal energy. Steel makes up most parts of the underwater turbines including the nacelles, support structures and underlying piles for a sturdy and sustainable power source. As with other renewable energy, increasing the lifetime and decreasing maintenance costs will determine the competitiveness of tidal energy. Thus, stainless steel is the go-to material for corrosion resistance. The infrastructure related to tidal energy extraction is massive in scale and will call for thousands and thousands of pounds of steel to construct.  

Korea is the largest source of tidal energy in the world, with 552.7 GHw of electricity harvested from Siwha Lake every year. It’s also where steelmaker POSCO is located to provide the necessary types and grades of steel for renewable energy production.

POSCO E&C has its own solar, wind, tidal and refuse-derived fuel (RDF) plants, which makes sure even industrial wastes get turned into energy. The company was also the first company in Korea to build a solar power plant in 8 different regions capable of generating 31.2MW of solar electricity.

In order to stay competitive in the market, industries are already using or transitioning towards renewable energy sources to fuel their business activities. As governments around the globe also commit to a greener future, the demand for steel used in renewable energy infrastructure will see a significant boost.

Cover photo courtesy of the National Geographic.

Here is what bridge expert Marco Rosignoli had to say about emerging megacities, the greatest challenge of providing efficient transportation and what kind of bridges will need to be built to accommodate the changing urban environment.  

The Cities of the Future

Today, megacities are the gateways of globalization. They drive flows of people, goods, knowledge and money around the world, and they also make a large contribution to economic growth at a national level. Tokyo accounts for 28 percent of the Japanese population and generates 40 percent of the country’s GDP. Paris accounts for 16 percent of the French population and generates 30 percent of its GDP. Many metropolitan regions have higher GDP pro-capita than the national average, higher labor productivity, and faster growth rates.

Given their weight in the national economy, the ability of megacities to compete at a global level is paramount. To attract investment, these cities need modern, efficient infrastructures. As the competition shifts from competition among countries to competition among cities, many countries are developing policies to develop their cities into globally competitive megacities.

“Mega” Challenges for “Mega” Cities

Recent studies show that transportation is the biggest infrastructure challenge of megacities and has a big impact on city competitiveness. Transport problems affect megacities at all levels of development and range from obsolete systems and aging infrastructure of mature cities such as London and New York to an insufficient system capacity of transitional cities and even non-existing basic infrastructure of emerging cities such as Karachi.

The mass transport systems of megacities must be capable of transporting millions of people while putting as little strain as possible on the environment. A good quality of life requires a well-functioning infrastructure, and an effective infrastructure contributes to economic prosperity.

Traffic congestion during rush hour at Shanghai, China

Congestion costs are huge for megacities’ economy, employment and the environment. Air pollution and traffic problems are the top two environmental problems of megacities, and road transport alone is responsible for over 40 percent of discharge of suspended particles into the atmosphere. Although water, electricity, health care, safety and security also need investment, recent studies suggest that these sectors are less likely to see a strong link between spending and improved competitiveness of megacities, despite their important impact on the attractiveness of the city for investment. Instead, stakeholders will prioritize spending on improving transportation infrastructure to boost city competitiveness.

Investing in Transportation for Megacities

Stakeholders are split on whether to invest in new transport capacity or reorganize, revitalize and increase the efficiency of existing infrastructure. When new investment is made available, it will likely be used to deliver incremental improvements to existing transportation systems rather than on new infrastructure projects.

The Goethals Bridge in New York under reconstruction (Source: New York Post)

Thus, megacities can expect to see public investment go toward the maintenance of existing bridges, restoring and partially rebuilding instead of constructing from scratch. Maintenance efforts will include the demolition of existing bridges, combined with the conversion of old-generation steels into new families of high-grade steels. This will reduce the environmental impact and achieve a net earning in structural capacity that will pay off part of the energy cost of the reconversion process.

Overall, public investment in traditional roads and roadway bridges will diminish, and will increase for eco-friendly sectors such as mass transit systems, electrified ground transportation for food and public services, light-rail transit bridges serving local districts from mass transit hubs, and high-speed railway networks connecting megacities to airports, ports and other megacities. The environmental impact of private transportation will also lead to new, greener mass transit solutions, which will become a top priority for investment.

Bridges of the Future

Many urban bridges in the U.S. were designed to be as light as possible in light of the scarcity of steel following the 2nd World War. This led to the use of long-span trusses incorporating built-up sections with trusses and lightening holes. Such bridges require constant maintenance and hand painting of large surfaces, which makes their maintenance financially prohibitive. Bridges that are still in acceptable service conditions may suggest replacement just to avoid maintenance costs.

New-generation urban bridges designed for long service life and minimized lifecycle costs will use plate girders and multiple protective layers of replaceable materials. Modern high-grade steels allow for the use of a smaller number of structural members, which diminishes the number of field splices, diaphragms, lateral braces, and steel surfaces to protect.

The Stonecutters Bridge and container port in Hong Kong

Compared with reinforced concrete, steel offers a higher strength-to-weight ratio that increases the design efficiency of modular bridges. These days, steel bridges are becoming increasingly stronger and lighter. As a core material, steel facilitates the delivery of prefabricated units, simplifies the design of bridge piers and foundations, and is easier and faster to recycle or use in smaller quantities.

In the future, these lighter and smaller bridge units will require more field splices, and new types of bolted, welded or hybrid connections will be introduced to increase the structural efficiency of connections, impose less structural constraints on their distribution, and avoid the weakening of the cross-section with drilled holes.

Moreover, the availability of deck assembly areas and interference of construction operations with adjacent infrastructure will govern bridge design. Incremental launching construction from aerial platforms will see new applications, especially when combined with on-site welding of the field splices among modular bridge units. The welding of field splices will allow for optimized segmentation of bridge units, will diminish the cost of field splices, and will relax the fabrication tolerances of the units.

Incremental launching construction in London, UK (Source: Knight Architects)

Overall, emerging megacities will translate into an increased demand for bridges, whether it is from building a new bridge or a reconstructing an existing bridge. The challenge will shift from structural considerations to rapid, cost-effective construction processes within a complex urban environment.

Future bridges that will accommodate stricter environmental and sustainability regulations will feature shorter, lighter spans that can be prefabricated in smart factories and transported and erected rapidly in a congested urban environment.

Steel bridges offer many advantages over prestressed-concrete bridges under these new demands. A transition to greener megacities will provide a wealth of business opportunities, eco-friendly technologies and construction materials, and diversification for the coming future.

Continue on to Part Two of Marco Rosignoli’s post on technical and materials solutions for the construction of large-scale bridges in megacities.

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Take a look at three of the ways transportation is restructuring itself for faster, more sustainable travel. Some are closer to realization than others, but all of them are changing the way we think about movement. When realized, all of these ideas will have an impact far beyond what we can see now.

The Hyperloop – Fast & Frictionless

An Idea by Elon Musk

In 2013, Elon Musk came up with the idea for the Hyperloop as he grew frustrated with the high-speed rail being developed in California at that time. He called it “both one of the most expensive per mile and one of the slowest in the world.” Musk said, “It would be great to have an alternative to flying or driving, but obviously only if it is actually better than flying or driving.”

He imagined capsules, zooming by at speeds faster than any train or plane, that would allow him to get to San Francisco from LA in 35 minutes. The basic concept was that the capsules would float through partially evacuated steel tubes propelled by fans and electromagnets. Because there would be less friction from air and rails, there could be significant increases in speed and durability, while decreasing reliance on fuel at the same time.

Workers install Hyperloop’s stator blocks at our test and development site in North Las Vegas. (Photo courtesy of Hyperloop One)

Because Musk was so involved transforming the space industry with SpaceX, the auto industry with Tesla, and the energy industry with SolarCity, he did not seem to have much time for Hyperloop. So, he developed a 58-page outline of his ideas and left it to others to develop. And they have.

Hyperloop One Unveils Testing Site

To fulfill this improbable dream, a handful of startups have stepped in – one of them being California-based Hyperloop Technologies. They have been building a test site, called DevLoop, 30 minutes outside of Las Vegas in the Nevada desert that was unveiled last week to the public. According to their press release, DevLoop is a 500-meter full-scale Hyperloop test structure weighing over one million kilograms. The Hyperloop One tube measures 3.3 meters in diameter and they are expected to perform their first full test sometime in the first half of 2017.

Hyperloop unveiled its first test site, the DevLoop on March 7. Later this year, they will run their first test of the Hyperloop. (Photo courtesy of Hyperloop One)

In November, Hyperloop Tech signed an agreement with the Dubai Roads and Transport Authority to evaluate building a Hyperloop between Dubai and Abu Dhabi. When completed, a commute that once took several hours will take just 12 minutes.

All parties involved realize the costs are going to be high. Creating a new form of transportation infrastructure is not simple and building large steel semi-vacuum tubes over ground (or under) is technologically difficult requiring trained engineers and highly skilled workers. To offset this, Hyperloop Tech is focusing some of its energy in attracting industrial freight clients.

The Future of Freight

One of Hyperloop Tech’s Transportation Economists, Dapeng Zhang, recently presented on transformational freight explaining that their “vision at Hyperloop One is to connect cities into mega-regions, and turn metro areas into metro stops. This will inevitably improve the efficiency of freight supply chains. By connecting two distant metros, Hyperloop One creates a geographical cluster which could help reduce inventory costs, promote even more just-in-time strategies, and expand same-day delivery service areas.”

A Hyperloop steel tube awaits entry into the tube processing building, where they are painted and prepped for use. (Photo courtesy of Hyperloop One)

Whether or not this is completely feasible is still up for debate, but it is exciting to see the strides being made in this type of supersonic transportation technology. Other developments such as electric cars, autonomous vehicles, and SkyTran (below) will help us move short distances, but ideas like the Hyperloop are needed to connect the larger metropolitan areas.

SkyTran – Personal Rapid Transit

Apart from the Hyperloop and autonomous driving technology, other personal mobility developments are being made. One of those is SkyTran, a company working to develop a personal rapid transit system that carries people in autonomous pods. Located near Mountain View, California, SkyTran has focused its efforts on relieving congestion in cities by creating a system that rides on an elevated monorail. It is both quick and efficient, and unlike the Hyperloop, it is nearing completion with plans to open in Israel, Nigeria, and France.

This concept image shows a drop-off point for one of SkyTran’s capsules. (Photo courtesy of SkyTran)

Using what is called maglev technology (magnetic levitation), the SkyTran uses electromagnets (similar in concept to the Hyperloop) to propel itself forward (up to 155 mph) while using little to no electricity. SkyTran says that when the pod reaches 10 mph, it can continue to glide and accelerate without any extra power. SkyTran’s CEO says the pods can on the same amount of electricity as two hair dryers.

SkyTran capsules are elevated above the city streets avoiding traffic and giving them the freedom to move at high speeds. (Photo courtesy of SkyTran)

In addition to being highly efficient to operate, SkyTran benefits in its low upfront costs. Unlike the Hyperloop, which requires rather large infrastructure and maintenance costs to ensure proper functionality of the pipe’s vacuum and propulsion system, SkyTran is projected to be a much more economic option. Because the system is set up above the streets, its footprint is small – requiring only an 18-inch steel pole to hold the steel and aluminum capsules.

The company estimates that it will only cost about USD 13 million per mile to build, compared to a subway system that can cost around USD 160 million for the same distance. Because of the low upfront costs, SkyTran believes that malls, hotels, and other private businesses will want to build their own offshoot lines – not only for their customers but because it will be profitable.

POSCO’s Advanced Auto Steel in Future Cars

Autonomous, connected, electric. These are the common buzzwords that come to mind when we think about future trends in personal transportation. At CES earlier this year, seemingly everyone had their own solution to made driving cars more connected and safer, and with less human involvement.

Nissan and BMW unveiled plans to use Microsoft’s personal assistant technology, Cortana, with their cars. Honda became the first major manufacturer to develop an electric concept car specifically designed for ride-sharing. And as for self-driving cars – Nissan announced it would bring autonomous driving support to its Leaf electric car, Hyundai introduced one that would be affordable enough for the masses, and Audi announced a partnership with Nvidia to bring self-driving cars to market by 2020.

At the 2016 North American International Auto Show (NAIAS), POSCO showcased its advanced automotive steel products that are both strong and lightweight, making them uniquely suited for the electric cars of the future.

The weight of POSCO’s advanced auto steel is about 26.4 percent lighter compared to that used in most mid-sized vehicles. But despite being lighter, it received the highest level possible ratings from Europe and North America’s automobile collision evaluation Institute, Euro NCAP and IIHS.

In addition, the Life Cycle Assessment (LCA), which measures the amount of CO2 discharged throughout the entire life cycle from material production to recycling, showed that emissions from the internal combustion engine body were 50 percent lower. Electric car emissions were also decreased by about 9 percent.

POSCO’s advanced auto steel is uniquely developed to be lighter and stronger for the cars of the future

The displayed products included the new PosM Steel and hot press forming steel (HPF). PosM Steel is a “dream material” for car manufacturers because it is five times stronger than other steel in terms of machinability while also having an impact absorption of up to 100 kg per mm². While many steelmakers have been developing PosM Steel type steel, it has never been produced on a commercial scale before. In addition, POSCO’s HPF steel is stronger than many other steel alloys making it a good solution for manufacturers looking to improve car safety.

POSCO currently supplies advanced auto steel sheets to car and component manufacturers, including Toyota, Volkswagen, and GM. POSCO has 10 automobile production plants and 24 machining centers around the globe. In addition to providing its World Premium Products, POSCO also provides Solution Marketing services that offer customized technologies developed in-house (such as welding and molding) that are customized to fit a customer’s unique needs depending on the product and manufacturing process.

Innovations in the transportation industry require big ideas, big investments, and new technological advancements. Right now, all of these seem to be coming together for what is expected to be some big changes. If the investors at Hyperloop and SkyTran have their way, pretty soon we will be able to travel across Europe on a Hyperloop, transfer to a SkyTran, and arrive in our hotel in less than an hour.

*Cover photo courtesy of Hyperloop One.

While the Smart Energy Marketplace featured innovative products that provide electricity in more sustainable ways, the Sleep Tech Marketplace showcased exciting sleep-related technologies aimed at improving health through better sleep. Check out some of the recent advancements below and let us know what you think!

The Smart Energy Marketplace: Cleaner & Sustainable Electricity

As they do every year, tech giants and startups used CES to debut their new products and ideas. Just when it seemed that the market was saturated with enough cool floating Bluetooth speakers and mobile charging cases, CES 2017 took it to another level with new solar-powered gadgets.

• Designed by Lemon Technology, The California Roll is the first solar-powered, waterproof speaker. It lasts up to 20 hours with only 7 hours of sunlight, includes voice recognition capabilities, and uses NFC to offer a faster and more reliable connection with less energy consumption. Because it is waterproof, the California Roll is good to go, rain-or-shine.
• When your smartphone battery dies, iPowerUp is a case that can recharge the phone from solar cells located on the back. Its solar panels store energy and then charge your phone when an outlet is unavailable.

POSCO’s work in developing smart energy technology can be seen in the World Premium Product, PosMAC (POSCO Magnesium Aluminum alloy Coating). Solar cells need to be installed with materials that are both lightweight and sturdy enough to withstand the elements. PosMAC is uniquely suited for solar energy development because it is durable, light weight, and non-corrosive.

The Sleep Tech Marketplace: Better Sleep & Improved Health

Trouble sleeping? CES showcased a possible solution at its Sleep Tech Marketplace. In its first year, the marketplace showcased several products that help regulate your body’s circadian rhythm and provide a more peaceful sleep.

• If noises are keeping you up at night, Nightingale is a device that plugs into an outlet and masks common indoor and outdoor noises that can disrupt sleep patterns by adding ambient sounds, called “sound blankets.” Two speakers placed in two different units in a room utilize the walls to reflect sound and blend it into the background.
• PEGASI Smart Sleep Glasses solves a series of sleep related issues by generating lights of specific wavelengths to stimulate the suprachiasmatic nucleus on the hypothalamus, which controls the circadian rhythms that help regulate sleeping patterns.

POSCO has also been working to develop technologies that can help regulate sound for more peaceful sleep. PosCoZy was designed to provide a more peaceful and quieter living experience through a flooring system that can greatly reduce impact noise between floors in apartment buildings and offices. PosCoZy’s manganese Z-clips’ resistance to vibrations are 4x higher than regular steel. What’s more, PosCoZy helps reduce the sound of typical walking from 50 decibels to just 40dB, while impact sounds are lowered from 58dB to 38dB. That means you can sleep through the night without hearing the party going on upstairs.

Bigger and bolder than ever before, CES 2017 took great strides with new marketplaces, including the smart energy and sleep tech industries. POSCO continues to develop pioneering solutions alongside these breakthrough innovations as well to find advanced solutions for the 21^st century.

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