Search

Spain’s MetroCHARGE Powers EVs With Energy Recovered From Barcelona Subway Train Brakes

We are an online community created around a smart and easy to access information hub which is focused on providing proven global and local insights about sustainability

30 Dec, 2024

This post was originally published on Eco Watch

In Barcelona, energy from train brakes that could otherwise be wasted is now being harvested to charge electric vehicles.

As part of Spain’s MetroCHARGE project, 16 subway stations in Barcelona use brake energy recuperators to redirect energy from the train brakes to EV charging stations on the streets, The Associated Press reported.

Regenerative braking is not a new concept, especially for trains. But the move to transport the energy from the brakes through cables to electric vehicle chargers is an innovative way to supply power to charging stations.

The Metro Barcelona underground Provença transit station on Feb. 19, 2022. Boarding1Now / iStock Editorial / Getty Images Plus

According to the Transports Metropolitans de Barcelona (TMB), the main transportation operator in Barcelona, the MetroCHARGE project uses a combination of the brake energy recuperators on select trains as well as five solar power plants and a combination of ultra-fast and semi-fast EV chargers to harness clean energy and create a self-sufficient EV charging network.

“We’re trying to take advantage of the power that’s already in the metro system and use that spare energy to feed EV chargers on the street,” said Marc Iglesias, head of sustainable mobility at Àrea Metropolitana de Barcelona, a collaborator on the MetroCHARGE project, as reported by Grist.

An EV charging station on a street in Barcelona. AlvaroRT / iStock / Getty Images Plus

In addition to the brake energy going to EV chargers, it also helps power nearby lights and passenger escalators, Grist reported. In total, the MetroCHARGE program meets all energy needs for 28 of 163 subway stations in Barcelona, The Associated Press reported. The project cost 7.3 million euros ($7.6 million), an amount that the program is estimated to recover in energy savings in about four years. The regenerative braking system is further expected to save around 3,885 metric tons of carbon dioxide per year.

The regenerative braking project not only provides cleaner energy to EV chargers, but it could also lower charging rates for users.

“Since the recharging stations are installed nearby, the energy, instead of being put back into the general electric network, goes directly to the charging stations, and that allows the provider to potentially offer lower prices,” Alvaro Luna, a professor of electrical engineering at the Polytechnical University of Catalonia, told The Associated Press. “We can say that the innovation is one of urban planning, of being able to bring together energy uses within a city.”

About 2.3 million riders use the Barcelona metro system each weekday, The Associated Press reported, and locals and tourists take around 440 million trips on the metro system per year, according to Grist.

While the MetroCHARGE project is a step in the right direction for greener transportation and energy, there is more work to be done. As The Associated Press reported, Spain missed its goal of installing 100,000 EV charging stations by 2021, as it has only around 37,000 now. The country will need to ramp up installations to meet a growing demand for EVs. According to Statista, demand for EVs in Spain is expected to reach an annual growth rate of 14.94% through 2029.

The post Spain’s MetroCHARGE Powers EVs With Energy Recovered From Barcelona Subway Train Brakes appeared first on EcoWatch.

Pass over the stars to rate this post. Your opinion is always welcome.
[Total: 0 Average: 0]

You may also like…

Energy Efficiency as an Imperative Climate Strategy

Energy Efficiency as an Imperative Climate Strategy

With mandatory climate statement disclosure rolling out in Australia, businesses need to start reporting on their emissions and sustainability plans for the future. As companies begin assessing the relevant risks and opportunities related to various climate scenarios, energy efficiency presents itself as an immediate climate-strategy with long-term benefits.

Commencing 1 January 2025, businesses that meet two of the three conditions — more than 500 employees, gross assets above $1 billion or $500 million or more in consolidated gross revenue — are required to lodge a climate statement, which discloses their climate-related plans, financial risks and obligations. As part of the gradual roll-out, by 1 July 2027, businesses that meet two of these conditions — more than 100 employees, gross assets above $25 million or exceeding $50 million in consolidated gross revenue — will also be required to report.

This climate statement will need to include the company’s sustainability governance, climate risks and opportunities, including those physical and transition related. They will also need to disclose their Scope 1 and 2 emissions, strategy to decarbonise, and conduct scenario analysis on the short, medium and long term impacts on the business. By the second year of reporting, businesses will also be expected to report on Scope 3 emissions.

Scenario analysis will be based on various assumptions of the state of the climate, one of which includes a possible future where global temperature has increased 2.5°C or more. They will be required to share their climate strategy and steps they are taking long-term in preparation for this scenario.

Common themes within climate strategies will include switching to renewable energy sources, electrifying fleet vehicles, purchasing carbon credits, and carbon capture and storage. Many of these methods look at reducing emissions through the energy source, or targeting the carbon aspect directly; however, climate strategies can also include reducing the amount of energy used. By investing in more energy efficient equipment, sites can maintain production whilst using less energy and producing less emissions.

When increasing energy efficiency and reducing energy consumption first, businesses will see short-term impacts; however, in the long term, they are also improving their foundation for an energy transition. Assuming no other changes, higher energy efficiency can lead to decreased energy demand, allowing for reduced system requirements when specifying and planning for self-generation or energy costs.

To understand what opportunities are available for upgrading to more energy efficient equipment, businesses can start with an energy audit to understand how energy is being consumed across site. Energy audits, like the ABB Energy Appraisal, can provide a roadmap for where and how equipment can be upgraded for the best energy saving potential. An energy audit identifies areas that can be immediately improved with existing equipment on the market, so there is no need to wait for the commercialization or development of more sustainable technology. Going beyond just changing all lights to LEDs, efficiency recommendations may include areas where variable speed drives can be added to control motor speed or upgrading from an IE3 motor to an IE5 ultra-premium efficiency or IE6 hyper-premium efficiency motor to reduce energy losses by 40% or more. This area can often be overlooked on sites as the Minimum Energy Performance Standard (MEPS) in Australia for motors is just IE2.

Mostly used in pumps, compressors, conveyors and fans, motors may seem like a minor part of a site; however, with 45% of the world’s electricity converted into motion by industrial electric motors, there are many opportunities for energy savings. In fact, a recent survey commissioned by ABB IEC Low voltage motors, showed that 92% of surveyed businesses in Australia recognize the important role of electric motors in achieving sustainability targets. In this same survey, participants ranked a reduction in operating cost as a more important driver for investing in energy efficiency than lowering their organization’s emissions. This is because upgrading to newer, more efficient equipment provides benefits beyond just emission reduction. For example, ABB’s Synchronous Reluctance (SynRM) Motors, available in IE5 ultra-premium efficiency or IE6 hyper-premium efficiency, use no rare earth metals or magnets. Running quieter and with bearing temperatures reduced by up to 15°C and winding temperatures by up to 30°, SynRM motors have longer maintenance periods, superior reliability, and contribute to a better operational environment.

Looking ahead, upgrading to an IE5 SynRM motor also provides more visibility into Scope 3 emissions, as SynRM motors meet ABB’s circularity criteria and transparency on environmental impact is provided through Environmental Product Declarations (EPDs).

By requiring companies to disclose their climate information, these new legal requirements are opening the door and facilitating more internal discussions on environmental impact and emission reduction. Whilst mandatory climate reporting is only required of large business entities this year, the progressive roll-out and Scope 3 emission reporting requirements mean that businesses of all sizes in Australia will be impacted by these new requirements. As businesses become more conscious of how sustainability should be integrated into their operations and finances, there is no better time to start investing in energy efficient solutions.

For more information, click here.

Image credit: iStock.com/denizunlusu

0 Comments