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...]
Hydrogen production in 2050: how much water will 74EJ need?
There’s no point ramping up hydrogen if other resource constraints are going to bring it to a halt. Here, Herib Blanco at IRENA summarises their research into how much water will be needed in the production of hydrogen through electrolysis (i.e. from water). A wide range of analyses have been reviewed to calculate the amount of water used during the hydrogen production, and by the energy source used to power it (renewables or gas). Assuming the … [Read more...]
Engineering yeast to create Biofuels from non-food crops (straw, grass, cellulosic waste)
Using ethanol can reduce the global consumption of fossil fuels. But, commercially, ethanol in the U.S. is produced from corn and not enough is grown to make a significant impact on U.S. fuel needs. Anne Trafton at MIT describes research that has engineered yeast to break down straw and woody plant material to create ethanol as efficiently as it’s done from corn. High yields of ethanol were extracted from five different types of cellulosic … [Read more...]
Comparing four Carbon Removal scenarios (IPCC, IEA, McKinsey, NGFS) and policy implications
Most net-zero scenarios include carbon removal as a major component. Simon Göss at cr.hub reviews four major scenarios from the IPCC, IEA, McKinsey, and the Network for Greening the Financial System (NGFS). He starts by making the very important distinction between carbon capture and negative emissions: capturing carbon from, say, a gas plant does not deliver negative emissions, it just prevents new emissions. This article is about the … [Read more...]
Wind, Solar: continuing cost declines will help meet rising renewables targets
The EC’s “Fit for 55” proposals include the raising of the EU’s 2030 target for total energy produced from renewable sources to 40%. Much of the rest of the world will likely raise its targets at some point too. Continuing to cut the cost of renewable energy generation will be essential to make that happen, and take pressure off all the other associated costs of supporting its integration into the energy system. Michael Taylor at IRENA summarises … [Read more...]
Central and Eastern Europe’s buildings renovation plans fall far short of 55% emissions cuts
There are big decarbonisation gains to be had in a renovation wave in Central and Eastern Europe (CEE) precisely because their building stock is very energy-inefficient, explains Christophe Jost at CEE Bankwatch. But Bankwatch's report on eight national plans - Bulgaria, Czechia, Estonia, Hungary, Latvia, Poland, Romania and Slovakia – reveals weaknesses in scale, funding, strategy and policy. Many are planning to comply with only the former 40% … [Read more...]
EU: Slow-moving CO2 targets for cars put EV battery boom at risk
Europe’s battery manufacturers are positioning themselves to be global leaders. Their project pipeline will be enough to power a new European car fleet that is 75% battery-electric by 2030. That’s 38 European gigafactories by 2030 (fully funded, part-funded and proposed), €39.5 billion worth in investments, creating 44,000 direct factory jobs. But existing CO2 emissions cut targets imposed on car manufacturers – a leading driver of demand for … [Read more...]
‘Fit for 55’ should prioritise decarbonisation of laggards: buildings, transport, industry, agriculture
Today’s long-awaited "Fit for 55" legislative package from the European Commission will trigger intense and difficult negotiations that will last two years, says Nicolas Berghmans at IDDRI. Its scope is wide and inevitably interconnected. The twelve legislative proposals include adjustments to existing measures (renewable energy, energy efficiency, carbon market/EU ETS, energy taxation, climate effort sharing between Member States/ESR, land use … [Read more...]
UK: exposing the gap between ambitious climate laws and actual policies
Like many nations, the UK has big gaps between what is actually needed to reach net zero by 2050, what targets and ambitions have actually passed into law, and what policies are actually in place to comply with those laws. The UK’s climate watchdog, the Climate Change Committee (CCC), has issued two reports that measure the UK’s performance and makes recommendations, summarised here by Josh Gabbatiss at Carbon Brief. The first report focuses on … [Read more...]
New rules for EU green bonds to raise €350bn/yr, but no decision on nuclear and gas
The EU needs €350bn/year from private investors to fill the Green Deal’s funding gap. The rules for the new green bonds that companies can issue to raise money are supposed to set a “gold standard”, ensure there’s no greenwashing, and make Europe the best place to invest your money sustainably. Benjamin Wehrmann at CLEW summarises the new strategy that was presented on 6th July, and has gathered reactions. Particular attention is paid to … [Read more...]
End Fossil Fuel subsidies by shifting them to poorer households
In May, the environment ministers of the G7 agreed to end fossil fuel subsidies within this decade. Around $650 bn/year is spent worldwide on subsidising all energy sources, with the majority ($450bn) going to fossil fuels despite the climate crisis. But simply removing the subsidies has proven difficult. They keep energy costs low for consumers. It’s why public protest resisted the change in Ecuador and France in 2019. And developing nations … [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...]
Buildings Retrofits: inaccurate efficiency ratings are going to waste budget
Buildings renovations are going to be expensive, and complicated to roll out. Accurately predicting how much energy a building actually wastes will make that process easier and cheaper. EPC ratings are used to categorise the energy efficiency of homes. But Freya Wise at The Open University quotes research in Europe, along with her own investigations in the UK, to show that a lot of older buildings waste less energy than the standard estimates are … [Read more...]
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