Laura Sandys at Energy Systems Catapult says policy makers today are too focussed on rewarding clean energy generation, in other words supplying as much energy as possible. With that comes a focus on reducing the cost of the energy generated. But how about reducing demand? Demand optimisation should be equally rewarded: efficiency, non-generation demand management (even at the household level: think EVs and heat pumps), and any assets that … [Read more...]
Record global power sector emissions by 2022, because Renewables aren’t growing fast enough
The IEA is forecasting that renewables will cover only half the projected increase in global electricity demand in 2021 and 2022. Despite renewables’ impressive growth, coal and gas will be needed to cover the rest. That means emissions will rise to record levels. That will be the reverse of the IEA’s (and many others’) “Roadmap to Net Zero by 2050” pathway, where three-quarters of global emissions reductions between 2020 and 2025 come from the … [Read more...]
Residential energy use: “interventions” that alter daily habits vs top-down regulations
Getting people to change their behaviour is part of the net-zero plan, with residential energy consumption at 20% of total energy demand. How big a part can it play, and how quickly? Traditional methods like economic incentives and providing consumers with raw consumption data don’t always get the results expected. Here, Elisabetta Cornago at the IEA describes behavioural “interventions” that alter daily habits, are cheaper than large-scale … [Read more...]
Super-efficient space cooling can mitigate 0.5°C of warming by 2100
Space cooling eats up 10% of global electricity use, and by 2050 total energy consumed could triple as ownership takes off in developing countries. It’s why the Global Cooling Prize was launched to find AC designs that will have an 80% lower climate impact, explains John Matson at RMI. The two main design goals were to reduce electricity demand, and use refrigerants with lower global warming potential (GWP) than traditional refrigerant gases. The … [Read more...]
U.S. can’t hit net-zero power target by 2035 without Advanced Nuclear
President Biden’s target of net-zero power generation by 2035 will be extremely challenging, if not impossible, argues Charles Merlin writing for IFRI. He says the best chance of achieving it is through advanced nuclear reactors, though the 2030+ switch-on dates of the new technology still won’t guarantee meeting Biden’s timescales. Why should the U.S. drive for advanced nuclear? Because of the known limitations of the other technologies. Wind … [Read more...]
Hydrogen: can gas, electricity and industrial majors agree on the next steps?
Here’s our written summary of our panel debate held on 16th June “Hydrogen: Designing the Net Zero Gas System”. With representatives from BASF, SNAM and ELIA to cover consumption, gas and electricity, there were plenty of differences of opinion. For example, with no end in sight for demand for green electricity for the grid, is it efficient to use some of it for hydrogen? Will subsidies for hydrogen skew markets away from industrial … [Read more...]
China’s energy system: record renewables expansion, but coal still dominates
Lara Dombrowski and Simon Göss at Energy Brainpool give the latest headline figures for China’s energy system. In 2020 electricity generation in China went up by 298 TWh – an increase equal to 60% of Germany’s total. That year, renewables capacity increased more than ever before. That made China responsible for nearly 50% of global renewable capacity additions. But China has higher CO2 emissions than all the OECD countries combined. And continued … [Read more...]
ELCC: for predicting how much storage a grid really needs
How much storage does a grid need? Too little leads to blackouts. Too much means money wasted. Getting the predictions wrong will skew policy priorities and investments, and slow the transition to a clean electric grid. Effective Load Carrying Capability (ELCC) measures a resource’s ability to produce energy when the grid is most likely to experience electricity shortfalls. Mark Specht at the Union of Concerned Scientists explains how it works. … [Read more...]
Financial incentives for Grid Modernisation: the problem with guaranteed returns on investment
Grid modernisation is going to be very expensive. What’s the best way to pay for it? The financial incentives governments put in place now will determine what investments get made, how cost-effectively it’s done, and who ultimately pays. Meredith Fowlie at UC Berkeley’s Energy Institute at Haas explains that a common method is for a government to give some sort of guaranteed return on investment for the new asset. But it’s far from ideal. … [Read more...]
Where to build new Wind Turbines in Germany? Lowest cost vs residents and nature
Germany was a wind energy leader. But by 2019 it was only ranked sixth globally for newly installed capacity per year. Antje Nieber and Paul Lehmann at the University of Leipzig explain why. At its heart is a conflict of priorities: lowest cost versus the interests of residents and nature, being played out at the national and federal levels. The switch from feed-in tariff support to lowest-cost tenders stalled a lot of wind projects. Lawsuits and … [Read more...]
Finland starts excavation of world’s first Deep Geologic Nuclear Waste Repository
Finland’s policy is to dispose of, within its borders, spent nuclear fuel rather than reprocess it. Excavation of a deep geological repository - for final disposal - at Olkiluoto began in May and is a world first. Not even the U.S., with its waste from over 130 nuclear reactors built since the 1950s, has committed to one. James Conca looks at Finland’s history of nuclear waste disposal, how it got to this decision, and the disposal method. The … [Read more...]
Germany: will the end of feed-in tariffs mean the end of citizens-as-energy-producers
Germany’s feed-in tariffs ran for 20 years. The guaranteed electricity price and connection to the grid incentivised ordinary citizens and communities to invest in smaller scale solar, biomass and wind generation for their homes and local areas. But that guaranteed price is now too expensive, and so the tariffs are ending and lowest-bid auctions are taking over. It’s the bigger players who are winning those auctions, and some of the existing … [Read more...]
How Clean Energy Standards have driven clean electrification in the U.S.
John Rogers at the Union of Concerned Scientists presents evidence from the U.S. of the effectiveness of using standards to drive clean electrification. In principle it’s simple: set a legal requirement for the percentage of clean electricity. How it’s done depends on the efforts of all the actors affected. 30 states are using different versions of Clean Energy Standards (CES) – the first began in 1983 and more than half of them began before 2004 … [Read more...]
Does new German target mean Coal gone by 2029, Renewables 65% by 2030?
The stiffer emissions targets introduced this month to Germany’s Climate Protection Law - CO2 emissions from the energy industry must fall to 108 Mt by 2030 instead of 175 – point to an even earlier coal phase-out date of 2029, with renewables generating 65% of electricity by 2030. The existing plan had meant coal must be gone by 2038. Michael ClauĂźner, Carlos Perez-Linkenheil and Simon Göss at Energy Brainpool explain why, using their modelling … [Read more...]
The IEA explains its new “Net-Zero Emissions by 2050” roadmap
Today the IEA publishes its new special report, “Net Zero by 2050: a Roadmap for the Global Energy Sector”, its deepest dive so far into what’s needed for a successful global transition. It analyses the options as well as the socio-economic, behavioural and environmental impacts they will have globally. Here, Laura Cozzi (Chief Energy Modeller) and Timur GĂĽl (Head of the Energy Technology Policy Division) at the IEA summarise the key principles … [Read more...]
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