Spanish government renewable energy auctions in January produced record-breaking low strike prices for both wind and solar. For solar the average price was €24.47/MWh (the lowest was €14.98/MWh), guaranteed for 12 years through contracts-for-difference (CfDs). As such auctions continue around Europe, Michael Claußner at Energy Brainpool asks what impact these prices will have on future power prices in general and on solar power purchase agreement … [Read more...]
Are Regulations and Climate Activism the main driver for coal exits, not Gas and Renewables prices?
It’s widely thought in the media and politics that market forces are now the primary driver for the demise of coal: mainly natural gas prices, and the rising adoption and competitiveness of wind and solar. However, David Drake and Jeffrey York at the University of Colorado Boulder present their research from the U.S. that suggests the two main drivers are federal policy and climate activism. They studied the retirement of 348 coal-fired units … [Read more...]
Berkeley Lab releases progress report on state renewable energy standards
Berkeley Lab has released an annual status report on U.S. renewables portfolio standards (RPS), providing an overview of key trends associated with state RPS policies. The report, U.S. Renewables Portfolio Standards 2021 Status Update: Early Release, published in slide-deck form along with accompanying data files, describes recent legislative revisions, key policy design features, compliance with interim targets, past and projected impacts on … [Read more...]
EU Recovery funds: where is the support for District Heating?
District Heating is an efficient way to heat homes, particularly in a country like Latvia where 58% of its primary energy consumption is used for heating. But Selīna Vancāne at Riga City Council is very concerned that the draft EU Recovery plans do not include any support under the climate goals for district heating projects. Perhaps it’s because of a blind spot: most of Europe is prioritising individual heating units powered by electricity. … [Read more...]
New Berkeley Lab Report Documents Trends in System Impacts, Reliability and Market Value of Solar in the United States
By Andrew Mills and Joachim Seel, Berkeley Lab As solar generation increases, it is expected to progressively impact the bulk power system—changing prices for energy and other grid services. Solar generation is driven by sunshine and thus often highly correlated over the course of a day within a region. Without the deployment of storage or an increase in price-responsive load, growth in solar capacity is … [Read more...]
Germany’s Renewable Energy Act 2021: how to implement the fine policy detail of emissions reduction targets
After much haggling and debate, Germany’s Renewable Energy Act (EEG) 2021 was finally approved in December and came into force on 1 January 2021. Sila Akat and Simon Göss at Energy Brainpool outline the most important changes imposed by the amendment. It gives an insight into how a nation is dealing with the finer details of increasingly ambitious emissions reduction targets. The authors cover the main issues and outcomes. How Germany is dealing … [Read more...]
Optimising Wind and Solar needs new ways of weather forecasting
Weather forecasters are used to – and very good at – predicting large-scale weather patterns and then inferring what the actual surface weather conditions will be, based on a database of past events. Hannah Bloomfield at the University of Reading explains how the creation of a database of site-specific wind and solar generation, as well as grid demand, can be used in the same way to more accurately predict the impact of the weather on these … [Read more...]
Carbon Offsetting via old wind and solar farms is no way to reduce emissions
Companies can offset their emissions by buying carbon credits, where the money goes to fund clean energy projects. But the carbon credit market includes credits for very old projects. This is a foolish waste, explain Mark Maslin and Simon Lewis at UCL (UK). The market must be based on the principle of additionality: the money should be aimed at projects that would not have happened otherwise, thereby causing emissions reductions that would not … [Read more...]
Quantum Well solar cell sets new record for converting light to energy
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...]
Nine advantages small-scale solutions have for reducing global emissions
Which is best? Spending your budget on a million 1 KW solar panels or a single 1 GW nuclear/hydro/gas plant? Lots of electric bikes or a single tram system? Lots of smart thermostats or whole-building retrofits? Charlie Wilson (University of East Anglia), Caroline Zimm (IIASA) and Simon De Stercke (Imperial College London) summarise their study that lists the advantages of small-scale “granular” solutions over large-scale “lumpy” ones. Granular … [Read more...]
Coal regions are ideally suited for utility-scale Wind, Solar and jobs
Over 15% of total greenhouse gas emissions in the EU come from coal-fired energy generation. 18 EU countries still use coal for electricity production. The argument goes that the phasing out of coal threatens the livelihoods of coal workers and their regional economy. But it should be the opposite, argue Elif Gündüzyeli and Jörg Mühlenhoff at CAN Europe. Coal regions are ideally suited for new gigawatt-scale wind and solar. They already have the … [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...]
A pathway for profitable CCS in California
A study from the energy departments of Stanford University, from where Kara Glenwright writes, lays out a pathway for California to capture and store up to 60 Mt (million tonnes) of CO2 a year. 76 site locations have been identified where work could start immediately to store 20 Mt/yr profitably under the existing low carbon rules. But first a raft of clarifications on the laws is needed, showing that the success of CCS doesn’t just depend on the … [Read more...]
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