There’s a new world-record for two-junction solar cells, converting 32.9% of sunlight into electricity. Although it’s only a small improvement on the previous record of 32.8% it uses a design that should lead to even greater performance. NREL, in collaboration with the University of New South Wales (Australia), has built a cell consisting of a series of more than 150 ultrathin layers of alternating semiconductors that create quantum wells which … [Read more...]
The Energy Charter Treaty makes the transition easier. Don’t scrap it, reform it
Energy and climate experts as well as national and EU parliamentarians are lining up to press their governments to withdraw from the Energy Charter Treaty (ECT) if insufficient progress is made in its modernisation. Their main argument is that it gives protection to fossil investments in a world where policies are changing in order to constrain or phase them out. Here, Frank Umbach at EUCERS sternly warns against abandoning the ECT. The treaty … [Read more...]
Nuclear-Wind hybrid plants for grid stability, Power-to-X and more
How would you use a nuclear-wind hybrid plant and maximise its potential? When intermittent wind’s output falls, nuclear can step in to feed the grid. When it’s not doing that it can use its power to run the production of a wide range of commodities: from biofuels, hydrogen, pumped hydro to wastewater purification, desalination, chemical manufacturing and more – including straightforward thermal power for industry. In collaboration with NREL, the … [Read more...]
The top Clean Energy developments of 2020
The world is still a long way off the pathway to meeting our emissions goals. But 2020 saw a number of major steps in the right direction. Laurie Stone at RMI presents a list of what has been achieved and which trends and new policy commitments are pointing us towards a much needed faster transition. They include coal’s decline, wind and solar’s growing competitiveness (even compared to gas), the promise of green hydrogen, bans on gas/petrol … [Read more...]
A beginner’s guide to European climate laws
Confused by the range of EU and national climate laws? The EU-ETS, the Effort-Sharing Regulation, the Renewable Energy Directive, the Energy Efficiency Directive, the Clean Energy for all Europeans Package, LULUCF, and more? Which are the important ones? Who exactly is making policy, and how? What are the real world effects? Julian Wettengel at Clean Energy Wire has asked experts to improve our understanding by answering a list of questions on … [Read more...]
The renewable electricity market in Ukraine: answers to the key questions
Tetiana Mylenka at Hillmont Partners law firm (Kyiv, London) answers key questions about the prospects for renewable energy in Ukraine. Is there any hope that the renewable energy sector in Ukraine is coming out of its crisis? As of today, it is too early to say that the renewable energy sector in Ukraine is coming out of its crisis. The adoption of the long-awaited Law No. 810-IX should resolve the situation and partially … [Read more...]
IEA’s “accelerated case” becoming the norm? Global Wind + Solar to overtake Gas and Coal by 2024
The IEA’s 2019 “accelerated case” for renewables is turning into this year’s “main case”. It predicts that Wind and Solar capacity combined will overtake both Gas and Coal globally by 2024. Josh Gabbatiss at Carbon Brief summarises the IEA’s Renewables 2020 report. Within five years, renewables will constitute 1/3 of all electricity generation, equivalent to the combined demand of China and the EU. Virtually all global growth in electricity … [Read more...]
Solar power stations in space that beam uninterruptible power back to Earth
It’s still on the drawing board, but putting solar farms into orbit has obvious advantages. The power is 24/7, and no sunlight is lost through the atmosphere. But there are two big challenges. Amanda Jane Hughes and Stefania Soldini at the University of Liverpool explain how the European Space Agency, the California Institute of Technology, the Japan Aerospace Exploration Agency, and Xidian University in China, among others, are attempting to … [Read more...]
Accelerating renewables in Central and South East Europe
What is the potential for renewables in Central and South East Europe? Luis Janeiro, Seán Collins and Ricardo Gorini at IRENA summarise their clean energy pathway for CESEC (the Central and South Eastern Europe energy connectivity initiative). The region has very good resource conditions to scale up renewables. Spectacular cost reductions in wind and solar over the last few years can provide a cheaper source of new electricity than the least-cost … [Read more...]
Solar is displacing Coal in India’s electricity market
India is the world’s third largest electricity market and as a fast-growing economy can, according to the IEA, lead the recovery of global energy demand out of the pandemic for the coming decade. Kashish Shah at IEEFA runs through solar’s prospects in India, which hopes to build 450GW of renewable energy by 2030. Solar is getting cheaper. A 2GW auction in June delivered India’s lowest-yet renewable energy tariff at US$31/MWh. That figure could … [Read more...]
The benefits of Peer-To-Peer Electricity Trading for communities and grid expansion
The adoption of peer-to-peer (P2P) electricity trading will turn individual consumers from passive to active managers of their networks. Such a marketplace can relieve constraints on the growing system and offer an alternative to costly grid reinforcements. Arina Anisie and Francisco Boshell at IRENA run through the benefits, including investment costs, bills, resilience, congestion, mini-grids, energy access, and more. They note that very few … [Read more...]
WEO 2020 means updated price predictions to 2040: Oil, Gas, Coal, Renewables, Power
The combined effect of the global lockdown, more ambitious climate policies and the rise of renewables will have a significant effect on European power prices up to 2040, as well as the sales revenues of renewable energies. Carlos Perez-Linkenheil at Energy Brainpool uses their Power2Sim model to look at the data in the IEA’s latest World Energy Outlook 2020 and make quantitative forecasts. The pandemic has caused structural distortions to the … [Read more...]
Europe has enough Gas infrastructure. Why build more?
In early November a first vote is expected in the European Parliament on the Recovery & Resilience Facility’s €672.5bn budget. Esther Bollendorff at CAN Europe runs through the arguments against providing any funding for new gas infrastructure. She presents evidence to show that the EU is already oversupplied with gas import capacity, and all new fossil gas transmission projects have been rejected by the market since 2017. Solar and wind … [Read more...]
ELCC: how to measure grid stability as renewables are added
We cannot just swap 24/7 fossil fuel power plants for intermittent renewables. To prevent electricity shortfalls the capacity of a solar or wind plant must exceed that of the fossil fuel plant it replaces. But by how much? That’s the question that the Effective Load Carrying Capability (ELCC) metric is designed to answer. It’s not a new concept, but is now becoming very important. Mark Specht at the Union of Concerned Scientists explains the … [Read more...]
Are 1.5°C scenarios supplanting “Business As Usual” as the new benchmark?
The world energy outlooks published annually by the IEA, BP and DNV GL look very different this year. 1.5°C scenarios are being taken much more seriously. Could it be because of the trauma of Covid-19, or the extraordinary – though still insufficient – success of renewables coupled with the rising ambition of climate-aware governments and their policies? Either way, they are helping to shift the debate away from the mainstream “business as usual” … [Read more...]
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