China To Generate Electricity From Compressed Air

Alberta Renewable Energy Boom highlights corporate investments, power purchase agreements, wind and solar capacity gains, grid decarbonization, and job growth, adding 2 GW and $3.7B construction since 2019 in an open electricity market.

Key Points

Alberta's PPA-driven wind and solar surge adds 2 GW, cuts grid emissions, creates jobs, and accelerates private builds.

✅ 2 GW added since 2019 via corporate PPAs

✅ Open electricity market enables direct deals

✅ Strong wind and solar resources boost output

Alberta has seen a massive increase in corporate investment in renewable energy since 2019, and capacity from those deals is set to increase output by two gigawatts —  enough to power roughly 1.5 million homes. 

“Our analysis shows $3.7 billion worth of renewables construction by 2023 and 4,500 jobs,” Nagwan Al-Guneid, the director of Business Renewables Centre Canada, says. 

The centre is an initiative of the environmental think tank Pembina Institute and provides education and guidance for companies looking to invest in renewable energy or energy offsets across Canada. Its membership is made up of renewable energy companies.

The addition of two gigawatts is over two times the amount of renewable energy added to the grid between 2010 and 2017, according to the Canadian Energy Regulator. 

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“This is driven directly by what we call power purchase agreements,” Al-Guneid says. “We have companies from across the country coming to Alberta.”

So far this year, 191 megawatts of renewable energy will be added through purchase agreements, according to the Business Renewables Centre, as diversified energy sources can make better projects overall.

Alberta’s electricity system is unique in Canada — an open market where companies can ink deals directly with private power producers to sell renewable energy and buy a set amount of electricity produced each year, either for use or for offset credits. The financial security provided by those contracts helps producers build out more renewable projects without market risks. Purchasers get cheap renewable energy or credits to meet internal or external emissions goals. 

It differs from other provinces, many of which rely on large hydro capacity and where there is a monopoly, often government-owned, on power supply. 

In those provinces, investment in renewables largely depends on whether the company with the monopoly is in a buying mood, says Blake Shaffer, an economics professor at the University of Calgary who studies electricity markets. 

That’s not the case in Alberta, where the only real regulatory hurdle is applying to connect a project to the grid.

“Once that’s approved, you can just go ahead and build it, and you can sell it,” Shaffer says.

That sort of flexibility has attracted some big investments, including two deals with Amazon in 2021 to purchase 455 megawatts worth of solar power from Calgary-based Greengate Power. There are also big investments from oil companies looking to offset emissions.

The investments are allowing Alberta to decarbonize its grid, largely with the backing of the private sector. 

Shaffer says Alberta is the “renewables capital in Canada,” a powerhouse in both green and fossil energy by many measures.

“That just shocks people because of course their association with Alberta is nothing about renewables, but oil and gas,” Shaffer says. “But it really is the investment centre for renewables in the entire country right now.”

Alberta has ‘embarrassing’ riches in wind energy and solar power
It’s not just the market that is driving Alberta’s renewables boom. According to Shaffer there are three other key factors: an embarrassment of wind and solar riches, the need to transition away from a traditionally dirty, coal-reliant grid and the current high costs of energy. 

Shaffer says the strong and seemingly non-stop winds coming off the foothills of the Rockies in the southwest of the province mean wind power is increasingly competitive and each turbine produces more energy compared to other areas. The same is true for solar, with an abundance of sunny days.

“Southern Alberta and southern Saskatchewan have the best solar insolation,” he says. “You put a panel in Vancouver, or you put a panel in Medicine Hat, and you’re gonna get about 50 per cent more energy out of that panel in Medicine Hat, and they’re gonna cost you the same.”

The spark that set off the surge in investments wasn’t strictly an open-market mechanism. Under the previous NDP government, the province brought in a program that allowed private producers to compete for government contracts, with some solar facilities contracted below natural gas demonstrating cost advantages.

The government agreed to a certain price and the producers were then allowed to sell their electricity on the open market. If the price dropped below what was guaranteed, the province would pay the difference. If, however, the price was higher, the developers would pay the difference to the government. 

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Vineyard Wind Offshore Wind Farm delivers clean power to Massachusetts near Martha's Vineyard, with 62 turbines and 800 MW capacity, advancing renewable energy, cutting carbon, lowering costs, and driving net-zero emissions and green jobs.

Key Points

An 800 MW Massachusetts offshore project of 62 turbines supplying clean power to 400,000+ homes and cutting emissions.

✅ 800 MW powering 400,000+ MA homes and businesses

✅ 62 turbines, 13 MW each, 15 miles from Martha's Vineyard

✅ Cuts 1.6M tons CO2 annually; boosts jobs and port infrastructure

The crisp Atlantic air off the coast of Martha's Vineyard carried a new melody on February 2nd, 2024. Five colossal turbines, each taller than the Statue of Liberty, began their graceful rotations, marking the historic moment power began flowing from Vineyard Wind, the first large-scale offshore wind farm in the United States, enabled by Interior Department approval earlier in the project timeline. This momentous occasion signifies a seismic shift in Massachusetts' energy landscape, one that promises cleaner air, lower energy costs, and a more sustainable future for generations to come.

Nestled 15 miles southeast of Martha's Vineyard and Nantucket, Vineyard Wind is a colossal undertaking. The project, a joint venture between Avangrid Renewables and Copenhagen Infrastructure Partners, will ultimately encompass 62 turbines, each capable of generating a staggering 13 megawatts. Upon full completion later this year, Vineyard Wind will power over 400,000 homes and businesses across Massachusetts, contributing a remarkable 800 megawatts to the state's energy grid.

But the impact of Vineyard Wind extends far beyond mere numbers. This trailblazing project holds immense environmental significance. By harnessing the clean and inexhaustible power of the wind, Vineyard Wind is projected to annually reduce carbon emissions by a staggering 1.6 million metric tons – equivalent to taking 325,000 cars off the road. This translates to cleaner air, improved public health, and a crucial step towards mitigating the climate crisis.

Governor Maura Healey hailed the project as a "turning point" in Massachusetts' clean energy journey. "Across the Commonwealth, homes and businesses will now be powered by clean, affordable energy, contributing to cleaner air, lower energy costs, and pushing us closer to achieving net-zero emissions," she declared.

Vineyard Wind's impact isn't limited to the environment; it's also creating a wave of economic opportunity. Since its inception in 2017, the project has generated nearly 2,000 jobs, with close to 1,000 positions filled by union workers thanks to a dedicated Project Labor Agreement. Construction has also breathed new life into the New Bedford Marine Commerce Terminal, with South Coast construction activity accelerating around the port, transforming it into the nation's first port facility specifically designed for offshore wind, showcasing the project's commitment to local infrastructure development.

"Every milestone on Vineyard Wind 1 is special, but powering up these first turbines stands apart," emphasized Pedro Azagra, CEO of Avangrid Renewables. "This accomplishment reflects the years of dedication and collaboration that have defined this pioneering project. Each blade rotation and megawatt flowing to Massachusetts homes is a testament to the collective effort that brought offshore wind power to the United States."

Vineyard Wind isn't just a project; it's a catalyst for change. It perfectly aligns with Massachusetts' ambitious clean energy goals, which include achieving net-zero emissions by 2050 and procuring 3,200 megawatts of offshore wind by 2028, while BOEM lease requests in the Northeast continue to expand the development pipeline across the region. As Energy and Environmental Affairs Secretary Rebecca Tepper stated, "Standing up a new industry is no easy feat, but we're committed to forging ahead and growing this sector to lower energy costs, create good jobs, and build a cleaner, healthier Commonwealth."

The launch of Vineyard Wind transcends Massachusetts, serving as a beacon for the entire U.S. offshore wind industry, as New York's biggest offshore wind farm moves forward to amplify regional momentum. This demonstration of large-scale development paves the way for further investment and growth in this critical clean energy source. However, the journey isn't without its challenges, and questions persist about reaching 1 GW on the grid nationwide as stakeholders navigate timelines. Concerns regarding potential impacts on marine life and visual aesthetics remain, requiring careful consideration and ongoing community engagement.

Despite these challenges, Vineyard Wind stands as a powerful symbol of hope and progress. It represents a significant step towards a cleaner, more sustainable future, powered by renewable energy sources at a time when U.S. offshore wind is about to soar according to industry outlooks. It's a testament to the collaborative effort of policymakers, businesses, and communities working together to tackle the climate crisis. As the turbines continue their majestic rotations, they carry a message of hope, reminding us that a brighter, more sustainable future is within reach, powered by the wind of change.

Additional Considerations:

• The project boasts a dedicated Fisheries Innovation Fund, fostering collaboration between the fishing and offshore wind industries to ensure sustainable coexistence.
• Vineyard Wind has invested in education and training programs, preparing local residents for careers in the burgeoning wind energy sector.
• The project's success opens doors for further offshore wind development in the U.S., such as Long Island proposals gaining attention, paving the way for a clean energy revolution.

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100% Renewable Energy Transition unites solar, wind, hydropower, geothermal, and bioenergy with storage, smart grids, and sector coupling, delivering decarbonization, energy security, and lower LCOE amid post-Fukushima policy shifts and climate resilience goals.

Key Points

It is a pathway using all renewables plus storage and grids to fully decarbonize power, heat, transport, and industry.

✅ Integrates solar, wind, hydro, geothermal, and bioenergy

✅ Uses storage, smart grids, and sector coupling for reliability

✅ Requires enabling policies, finance, and rapid deployment

Renewable energy organizations representing different spheres of the renewable energy community have gathered on the occasion of the tenth anniversary of the Great East Japan Earthquake and Fukushima nuclear accident to emphasize that renewable energies are not only available in abundance, with global renewable power on course to shatter more records, but ready to deliver a renewable world.

The combination of all renewable technologies, be it bioenergy, geothermal energy, hydropower, ocean energy, solar energy or wind power, in particular in combination with storage options, can satisfy all energy needs of mankind, be it for power, heating/cooling, transportation, or industrial processes.

Renewables have seen tremendous growth rates and cost reduction over the past two decades, but there are still many barriers that need to be addressed for a faster renewable energy deployment to eventually achieve global 100% renewable energy, as outlined in an on the road to 100% renewables initiative that charts the path. It is up to political decision-makers to create the legislative and regulatory conditions so that the renewable energy community can act as fast as needed.

Such rapid switch towards renewables is not only a must in light of nuclear risks and the growing threats of climate change, but also the necessary response to the current pandemic situation. And it will allow those hundreds of millions of humans in unserved areas to get for the first time ever access to modern energy services, as noted by a new IRENA report that details how renewables can decarbonise the energy sector and improve lives.

Speakers from the renewable energy community presented today in a joint webinar that a renewable future is a realistic vision, representing:

Energy Watch Group, Global100RE Platform, Global100RE Strategy Group, International Geothermal Association, ISEP Japan, REN Alliance, World Bioenergy Association, World Wind Energy Association.

Dr. Tetsunari Iida, Director of the Institute for Sustainable Energy Policies ISEP Japan:

Ten years ago, on 11 March 2021, the Great East Japan Earthquake and Fukushima Daiichi Nuclear Power Plant accident occurred. It is a "coincidence of global history" that it now coincides with the starting point of the 100% renewable energy initiative that is accelerating around the world.

The world has changed dramatically since 311. Germany, Italy, Switzerland, Taiwan, South Korea, China and many other countries were all shocked by 311 and shifted their focus from nuclear power to renewable energy, and in the U.S. clean energy industries are setting sights on market majority to accelerate this trend. The next ten years will be the decade in which this perception will rapidly become the "new reality". 311 was the "starting point" for a structural energy shift in world history.

Hans-Josef Fell, former MP, President of the Energy Watch Group and co-initiator of the Global100RE Strategy Group:

The disasters of Fukushima and Chernobyl are urging the entire world to quickly end the use of atomic energy, and many call for a fossil fuel lockdown to catalyze a climate revolution alongside the transition. Contrary to what is often claimed, nuclear energy cannot make a contribution to climate protection, but only creates immense problems with toxic radioactivity emissions, nuclear waste, atomic bomb material and the dangers of a nuclear catastrophe. In contrast, 100% renewable energies until 2030 can help achieve climate protection and a simultaneous nuclear phase-out, according to a recently published statement by a world-leading group of energy researchers from the USA, EU and Australia.

Their research suggests that a 100% renewable energy supply, including storage systems, can provide full energy security for all of mankind by 2030 and will even be cheaper than the existing nuclear and fossil energy supply, and with over 30% of global electricity already from renewables, momentum is strong. The only requirement for implementation is the right decisions taken by decision makers both in governments and industry. All technical and economic prerequisites for a disruptive conversion of the global energy supply to 100% renewable energies are already in place.

Hon. Peter Rae AO, President of WWEA and Honorary Chairman of the REN Alliance:

40 years ago, the idea of developing nuclear power appealed to me as a non-polluting method of generating electricity. So I studied it. How to deal with waste and how to ensure it would not create a danger to life. Along came Chernobyl and other accidents. Storage of waste was leaving dangerous hiding places while some waste was alleged to be dumped at sea. I became more and more concerned. There were demonstrations that the existing methods were dangerous and required very strict construction and operational tolerances - up went the cost. Long delays and huge cost increases. I had visited nuclear power stations and talked to expert proponents in UK, France, US, Taiwan and Australia, and debates such as New Zealand's electricity future reflect similar concerns. The more I did the more certain I became that it was not the way to go. Then Fukushima put the dangers and cost beyond doubt.

Let's get on with the rollover to renewables.

Dr. Marit Brommer, Executive Director of the International Geothermal Association IGA:

The IGA is proud to work with all renewable energy associations to continuously provide a unified voice to a cleaner energy future. The Geothermal sector is proven to be a partner of choice for many locations in the world serving baseload power and clean heat to customers. We are particularly interested in the increased attention system integration gets, which underpins the importance of all renewables coming together at events such as the webinar organised by the WWEA.

Christian Rakos, President of the World Bioenergy Association:

The IPCC has emphasized the important role of sustainable bioenergy for climate protection. Recent advances in technology allow us to use feedstock from forestry, wood processing and agricultural production in an efficient and clean way. Today, bioenergy already contributes 12 - 13% to global final energy demand. Importantly, contribution from bioenergy is more than 5 times as much as nuclear energy worldwide. Together with other renewable energy technologies such as solar, wind, geothermal and hydropower, bioenergy can increase the contribution in a substantial way to meet the energy demands of all end use sectors and meet the international energy and climate goals.

Stefan Gsanger, Secretary General of the World Wind Energy Association and Co-chair of the Global100RE Platform:

The switch to a renewable energy future requires new political and economic thinking: from centralised structures with few large actors towards decentralised, participatory models with millions of communities and citizens playing an active role, not only as consumers but also as producers of energy. To make this new paradigm the predominant energy paradigm is the true challenge of the energy transformation which we as the world community are facing. If we manage this shift well and on time, billions of people across the globe, in industrialised and developing countries alike, will benefit and will face a bright future.

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U.S. Renewable Energy Share 2022 leads electricity generation trends, as wind and solar outpace nuclear and coal, per EIA data, with hydropower gains and grid growth highlighting rapid, sustainable capacity expansion nationwide.

Key Points

Renewables supplied over 25% of U.S. electricity in 2022, as wind and solar outpaced nuclear with double-digit growth.

✅ Renewables provided 25.52% of U.S. power Jan-Apr 2022.

✅ Wind and solar beat nuclear by 17.96% in April.

✅ Solar up 28.93%, wind up 24.25%; hydropower up 9.99%.

During the first four months of 2022, electrical generation by renewable energy sources accounted for over 25% of the nation’s electricity, projected to soon be about one-fourth as growth continues. In April alone, renewables hit a record April share of 29.3% — an all-time high.

And for the first time ever, the combination of just wind power and solar produce more electricity in April than the nation’s nuclear power plants — 17.96% more.

This is according to a SUN DAY Campaign analysis of data in EIA’s Electric Power Monthly report. The report also reveals that during the first third of this year, solar (including residential) generation climbed by 28.93%, while wind increased by 24.25%. Combined, solar and wind grew by 25.46% and accounted for more than one-sixth (16.67%) of U.S. electrical generation (wind: 12.24%, solar: 4.43%).

Hydropower also increased by 9.99% during the first four months of 2022. However, wind alone provided 70.89% more electricity than did hydropower. Together with contributions from geothermal and biomass, the mix of renewable energy sources expanded by 18.49%, and building on its second-most U.S. source in 2020 status helped underscore momentum as it provided about 25.5% of U.S. electricity during the first four months of 2022.

For the first third of the year, renewables surpassed coal and nuclear power by 26.13% and 37.80% respectively. In fact, electrical generation by coal declined by 3.94% compared to the same period in 2021 while nuclear dropped by 1.80%.

“Notwithstanding headwinds such as the COVID pandemic, grid access problems, and disruptions in global supply chains, solar and wind remain on a roll,” noted the SUN DAY Campaign’s executive director Ken Bossong. “Moreover, by surpassing nuclear power by ever greater margins, they illustrate the foolishness of trying to revive the soon-to-retire Diablo Canyon nuclear plant in California and the just-retired Palisades reactor in Michigan rather than focusing on accelerating renewables’ growth.”

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EU Renewable Energy Transition accelerates as solar and wind overtake gas, cutting coal reliance and boosting REPowerEU goals; falling electricity demand, hydro and nuclear recovery, and grid upgrades drive a cleaner, secure power mix.

Key Points

It is the EU's shift to solar and wind, surpassing gas and curbing coal to meet REPowerEU targets.

✅ Solar and wind supplied 22% of EU electricity in 2022.

✅ Gas fell behind; coal stayed near 16% with no major rebound.

✅ Demand fell; hydro and nuclear expected to recover in 2023.

European countries were forced to accelerate their renewable energy capacity after Russia's invasion of Ukraine sparked a global energy crisis amid a surge in global power demand that exceeded pre-pandemic levels. The EU’s REPowerEU plan aims to increase the share of renewables in final energy consumption overall to 45 percent by the end of the decade.

However, a new report by energy think tank Ember shows that the EU’s green energy transition is already making a significant difference. Solar and wind power generated more than a fifth (22 percent) of its electricity in 2022, pulling ahead of fossil gas (20 percent) for the first time, according to the European Electricity Review 2023.

Europe also managed to avoid resorting to emissions-intensive coal power for electricity generation as a consequence of the energy crisis, even as renewables to eclipse coal globally by mid-decade. Coal generated just 16 percent of the EU’s electricity last year, an increase of just 1.5 percentage points.

“Europe has avoided the worst of the energy crisis,” says Ember’s Head of Data Insights, Dave Jones. “The shocks of 2022 only caused a minor ripple in coal power and a huge wave of support for renewables. Any fears of a coal rebound are now dead.”

Ember’s analysis reveals that the EU faced a "triple crisis" in the electricity sector in 2022, as stunted hydro and nuclear output compounded the shock. "Just as Europe scrambled to cut ties with its biggest supplier of fossil gas, it faced the lowest levels of hydro and nuclear (power) in at least two decades, which created a deficit equal to 7 percent of Europe’s total electricity demand in 2022," the report says. A severe drought across Europe, French nuclear outages as well as the closure of German nuclear outlets were responsible for the drop.

Solar power shines through
However, the record surge in solar and wind power generation helped compensate for the nuclear and hydropower deficit. Solar power rose the fastest, growing by a record 24 percent last year which almost doubled its previous record, with wind growing by 8.6 percent.

Forty-one gigawatts of solar power capacity was added in 2022, almost 50 percent more than the year before. Ember says that 20 EU countries achieved solar records in 2022, with Germany, Spain, Poland, the Netherlands and France adding the most solar capacity.

The Netherlands and Greece generated more power from solar than coal for the first time. Greece is also predicted to reach its 2030 solar capacity target by the end of this year.

EU electricity demand falls
A significant drop in electricity use in 2022 also helped lessen the impact of Europe’s energy crisis. Demand fell by 7.9 percent in the last quarter of the year, despite the continent heading into winter. This was close to the 9.6 percent fall experienced when Europe was in Covid-19 lockdown in mid-2020.

"Mild weather was a deciding factor, but affordability pressures likely played a role, alongside energy efficiency improvements and citizens acting in solidarity to cut energy demand in a time of crisis," the report says.

A ‘coal comeback’ fails to materialize
The almost 8 percent fall in electricity demand in the last three months of 2022 was the main factor in the 9 percent fall in gas and coal generation during that time. However, Ember says that had France’s nuclear plants been operating at the same capacity as 2021, the EU’s fossil fuel generation would have fallen twice as fast in the last quarter of 2022.

The report says: "Coal power in the EU fell in all four of the final months of 2022, down 6 percent year-on-year. The 26 coal units placed on emergency standby for winter ran at an average of just 18 percent capacity. Despite importing 22 million tonnes of extra coal throughout 2022, the EU only used a third of it."

Gas generation was very similar compared to 2021, up just 0.8 percent. It made up 20 percent of the EU electricity mix in 2022, up from 19 percent the year before.

Fossil fuel generation set to fall in 2023
Ember says low-emissions sources like solar and wind power will continue to accelerate in 2023 and hydropower and French nuclear capacity will also recover. With electricity demand likely to continue to fall, it estimates that fossil fuel-generation "could plummet" by 20 percent in 2023.

Gas generation will fall the fastest, Ember predicts, as it will remain more expensive than coal over the next few years. "The large fall in gas generation means the power sector is likely to be the fastest falling segment of gas demand during 2023, helping to bring calm to European gas markets as Europe adjusts to life without Russian gas."

In order to stick to the 2015 Paris Agreement target of limiting global warming to no more than 1.5 degrees Celsius compared to pre-industrial levels, Ember says Europe must fully decarbonize its power system by the mid-2030s. Its modeling shows that this is possible without compromising the security of supply.

However, the report says "making this vision a reality will require investment above and beyond existing plans, as well as immediate action to address barriers to the expansion of clean energy infrastructure. Such a mobilization would boost the European economy, cement the EU’s position as a climate leader and send a vital international message that these challenges can be overcome."

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First Glasgow Electric Buses will transform the Caledonia depot with 160 charging points, zero-emission operations, grid upgrades, and rapid charging, supported by Transport Scotland funding and Alexander Dennis manufacturing for cleaner urban routes by 2023.

Key Points

Electric single-deckers at Caledonia depot with 160 chargers and upgrades, delivering zero-emission service by 2023

✅ 160 charging points; 4-hour rapid recharge capability

✅ Grid upgrades to power a fleet equal to a 10,000-person town

✅ Supported by Transport Scotland; built by Alexander Dennis

First Bus will install 160 charging points and replace half its fleet with electric buses at its Caledonia depot in Glasgow.

The programme is expected to be completed in 2023, similar to Metro Vancouver's battery-electric rollout milestones, with the first 22 buses arriving by autumn.

Charging the full fleet will use the same electricity as it takes to power a town of 10,000 people.

The scale of the project means changes are needed to the power grid, a challenge highlighted in global e-bus adoption analysis, to accommodate the extra demand.

First Glasgow managing director Andrew Jarvis told BBC Scotland: "We've got to play our part in society in changing how we all live and work. A big part of that is emissions from vehicles.

"Transport is stubbornly high in terms of emissions and bus companies need to play their part, and are playing their part, in that zero emission journey."

First Bus currently operates 337 buses out of its largest depot with another four sites across Glasgow.

The new buses will be built by Alexander Dennis at its manufacturing sites in Falkirk and Scarborough.

The transition requires a £35.6m investment by First with electric buses costing almost double the £225,000 bill for a single decker running on diesel.

But the company says maintenance and running costs, as seen in St. Albert's electric fleet results, are then much lower.

The buses can run on urban routes for 16 hours, similar to Edmonton's first e-bus performance, and be rapidly recharged in just four hours.

This is a big investment which the company wouldn't be able to achieve on its own.

Government grants only cover 75% of the difference between the price of a diesel and an electric bus, similar to support for B.C. electric school buses programmes, so it's still a good bit more expensive for them.

But they know they have to do it as a social responsibility, and large-scale initiatives like US school bus conversions show the direction of travel, and because the requirements for using Low Emissions Zones are likely to become stricter.

The SNP manifesto committed to electrifying half of Scotland's 4,000 or so buses within two years.

Some are questioning whether that's even achievable in the timescale, though TTC's large e-bus fleet offers lessons, given the electricity grid changes that would be necessary for charging.

But it's a commitment that environmental groups will certainly hold them to.

Transport Scotland is providing £28.1m of funding to First Bus as part of the Scottish government's commitment to electrify half of Scotland's buses in the first two years of the parliamentary term.

Net Zero Secretary Michael Matheson said: "It's absolute critical that we decarbonise our transport system and what we have set out are very ambitious plans of how we go about doing that.

"We've set out a target to make sure that we decarbonise as many of the bus fleets across Scotland as possible, at least half of it over the course of the next couple of years, and we'll set out our plans later on this year of how we'll drive that forward."

Transport is the single biggest source of greenhouse gas emissions in Scotland which are responsible for accelerating climate change.

In 2018 the sector was responsible for 31% of the country's net emissions.

Electric bus
First Glasgow has been trialling two electric buses since January 2020.

Driver Sally Smillie said they had gone down well with passengers because they were much quieter than diesel buses.

She added: "In the beginning it was strange for them not hearing them coming but they adapt very easily and they check now.

"It's a lot more comfortable. You're not feeling a gear change and the braking's smoother. I think they're great buses to drive."

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