Rooftop solar is becoming a key component of the roll-out of clean energy. But whereas the decision to install is straightforward for homeowners, how do tenants in social housing blocks take advantage of the subsidies and lower electricity prices? Sven Van Elst at ASTER and Maarten Michielssens at Energy Vision, writing for WEF, describe their project that is installing rooftop solar, free, for 52,500 social rental homes in Flanders, Belgium. No … [Read more...]
Agrivoltaics: GWs of solar power from farmland using strategically placed panels (and raising crop yields)
In Canada and the U.S. “agrivoltaics” are taking off. It’s when solar panels are laid out strategically on farmland. After concerns that it will obstruct farm machinery and lower crop yields, studies have shown that panels – on a large scale – can be placed so that they do not. In fact, certain crop yields can be raised when the panels are used to shield them from direct sunlight, explains Joshua Pearce at Western University, Canada. He looks at … [Read more...]
Space-Based Solar Power: getting closer as SpaceX and Blue Origin bring down the cost of heavy-lift launches?
“Space-based solar power” (SBSP) sounds great in theory: giant solar farms in space collect unobstructed sunlight 24/7 and beam it to Earth stations, all using technology that already exists. It isn’t getting off the ground (pun intended!) primarily because of the cost of launching thousands of tonnes into space, plus assembly and maintenance. The attraction is that, if it can happen affordably, it could provide a hundred times the energy the … [Read more...]
Though the price shocks hurt, Renewables installed between 2021-23 saved Europe €100bn
According to the IEA, without the solar and wind capacity additions made in 2021-23 Europe’s energy costs would have been €100bn higher in those three years, as prices spiked due to Russia’s invasion of Ukraine and the unexpected drop in output from nuclear and hydro. That money saved is another reason why the ramp up of renewables is so important, explains Joe Myers writing for the World Economic Forum who summarises the IEA data. Natural gas … [Read more...]
Rooftop Solar: will subsidies benefit wealthy early adopters, while grid limits lock out the latecomers?
Subsidies encouraging homeowners to install rooftop solar are being won by the affluent who can afford to be first movers. And when the technology has come down in price, the remaining majority of households will be shut out of the benefits of own-generation because the grid won’t have the capacity to integrate everyone. That’s the argument made by Juan Jose Cuenca Silva, Barry Hayes and Hannah Daly at the University College Cork who summarise … [Read more...]
Electricity Market Design – creating the stimulus for competitive Offshore Wind within the internal energy market
Ahead of the upcoming discussion in Brussels (September 18, 15:00, Polish Embassy REGISTER HERE) on how to stimulate renewable investment, see below for a reminder of what was discussed at our conference before the summer. This time around, following an open address by Wanda Buk, VP Regulatory Affairs at PGE, PGE Baltica's CEO, Arkadiusz SeksciĹ„ski will be joined by Thor-Sten Vertmann, Electricity Market Design (EMD) expert within Ms Kadri … [Read more...]
Does Nuclear slow down the scale-up of Wind and Solar? France and Germany can’t agree
France and Germany lead the camps in disagreeing on the future of nuclear in Europe. Camille Lafrance and Benjamin Wehrmann at CLEW take a deep dive into the reasons why, quoting experts and politicians. Germany’s vision of a fully renewables-based EU is at odds with France’s unwavering support for low-carbon nuclear energy. European-wide agreement on targets matter because they drive future investment in the targeted technologies and the design … [Read more...]
The world needs 200,000 Offshore Wind turbines by 2050: mapping the locations, constraints
Hugo Putuhena, Fraser Sturt and Susan Gourvenec at the University of Southampton summarise the results of their methodology that determines where to locate the hundreds of thousands more offshore wind turbines the world needs to meet net-zero targets. The world may need as many as 200,000 offshore turbines by 2050, generating 2,000GW. At the end of 2022, 63GW had been installed worldwide, so that means 32 times current capacity. If the “power … [Read more...]
Only certain types of Hybridisation (Wind or Solar + Storage) beat building expensive transmission lines
In some regions, the roll out of new wind and solar has outpaced new transmission. That causes “congestion” at times when the variable renewables are producing too much power locally, and cannot sell the excess, which squeezes profitability. That’s certainly the case in the U.S. now. One answer is “hybridisation” where storage is built alongside the renewables, to save that excess power for when it can be sold later. Julie Mulvaney Kemp at … [Read more...]
Hydropower’s full potential: emulator optimises designs and operations in real time
Hydropower plants are big and expensive. And no two plants are the same, located in different geographies. That makes it very hard to customise and test their design. Contrast that with other clean energy technologies like wind and solar, which are much easier to model, perfect, modularise and then deploy. As Caitlin McDermott-Murphy at NREL explains, it’s why researchers there are creating a hydropower plant emulator that tests designs and how … [Read more...]
Lookahead to 2024 27-nation EU Parliamentary elections: will ambitious climate policies win or lose votes?
In June next year Europeans from 27 nations will elect a new EU Parliament that will shape the bloc’s energy and climate policy in the years leading to the 2030 climate target deadline. It’s not clear whether rising prices, energy security and heatwaves will steer votes towards parties pushing for more rapid decarbonisation, or whether the cost and disruption of transition will do the exact opposite. At the last election in 2019 climate concerns … [Read more...]
EU’s 40% domestic Cleantech ambition: same target for Wind (easy) and Solar (hard) doesn’t make sense
The proposed Net Zero Industry Act includes a target for the EU to manufacture domestically at least 40% of its cleantech deployment needs by 2030. That includes the key technologies of solar PV panels, wind turbines (onshore and offshore), EV batteries, heat pumps and hydrogen electrolysers. But it doesn’t make sense to have the same 40% target for all, explain Giovanni Sgaravatti, Simone Tagliapietra and Cecilia Trasi at Bruegel. The main … [Read more...]
How will China respond to the EU’s “40% made at home” clean energy tech ambition
The EU’s Net Zero Industry Act wants to drive home-grown production of eight “strategic” net-zero technologies, including solar, wind, batteries and CCS. The target is 40% made at home, though the policy is yet to be worked out. You Xiaoying writing for China Dialogue talks to experts in China and the EU for their predictions. Most say that Chinese firms are not very worried. Firstly, they can – and are already making moves to – set up production … [Read more...]
IEA report: global manufacturing capacity is expanding rapidly for solar, wind, batteries, electrolysers, heat pumps
The IEA summarises its special briefing, “The State of Clean Technology Manufacturing.” It’s a global update on recent progress in key regions, focussing on five technologies – solar PV, wind, batteries, electrolysers and heat pumps – critical to the energy transition. It should be read to keep decision makers informed of investment trends and the impact of industrial strategies. Overall, manufacturing capacity for these technologies is expanding … [Read more...]
Perovskite: abundant, cheap, printable solar cells demonstrated, ready to generate power
Laboratories around the world are racing to make printable perovskite solar cells, produced in abundance and so thin they can be wrapped around almost anything. It’s a huge advantage over the typical silicon cell that is relatively big and fragile. And perovskite is much less expensive to produce. David Beynon at Swansea University describes research there that has demonstrated how a roll of plastic film can be loaded into a printing press to … [Read more...]
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