The debate is intensifying over how to decouple power prices from the extraordinarily high natural gas prices in Europe. Simona Benedettini and Carlo Stagnaro warn that the current problem of high prices is not caused by the mis-functioning of electricity markets, but by the exceptional trend in gas prices. So should the markets be re-designed at all? Will we lose the benefits of the current design, one being the reliable profits that renewables … [Read more...]
Is a Carbon Tax the best way to decarbonise the Grid?
Severin Borenstein at the Energy Institute at Haas and Ryan Kellogg at the University of Chicago question whether carbon pricing is the best way to decarbonise the electricity grid. The authors did an empirical analysis of all of the fossil plants in the US. It shows that a CES (clean electricity standard) or zero-emissions subsidies would close down fossil plants in almost the same order as a carbon tax. So using alternative policy tools can … [Read more...]
Fossil fuel producers can decarbonise by exporting Electricity, Hydrogen, and Steel
The compelling reason why fossil fuel producers will be needed even beyond 2050 is that they currently provide over 80% of global energy, and 90% of the world’s population still needs the wealth creation that energy delivers, says Schalk Cloete. Given that, he summarises his co-authored paper that takes a close look at how a fossil exporter, Norway, can trade with an importer, Germany, while decarbonising. The modelling focusses on electricity … [Read more...]
Reactor shutdowns in Nuclear-dependent France expose the need for a diversified mix of Renewables
Events are showing that a nation’s heavy reliance on a single source of energy is unwise. It’s not just gas. The heatwave is causing problems for France’s nuclear fleet, where the use of water for cooling has had to be restricted. All compounded by routine and unexpected maintenance shutdowns. As nuclear typically delivers well over 60% of its power, and also made it Europe’s biggest power exporter (until now), France is feeling the consequences. … [Read more...]
As spot market electricity prices break all records, what is the prediction for winter?
Spot market prices for electricity have been breaking all records, as European leaders and their ministers intensify their discussions on how to deal with the crisis. Simon Göss at cr.hub, writing for Energy Brainpool, starts by explaining how the markets work, noting that price rises are indeed being driven by fossil prices and not CO2 certificates. Göss looks at how prices have climbed in Germany, France, the Baltics and Spain, and how the … [Read more...]
Electricity market re-design should focus on the root cause of the crisis, Europe’s dependence on fossil fuels
Amidst the perfect storm of the pandemic, war in Ukraine, and extreme weather events, Bruce Douglas at Eurelectric urges us all not to lose focus on our decarbonisation targets. Energy savings, electrification and renewables are more important than ever to help reduce dependence on fossil fuels. Douglas explains that Europe’s electricity sector remains totally committed to the drive towards clean energy, citing examples. He summarises the … [Read more...]
Can China’s 14th 5-year-plan for Renewable Energy deliver an early emissions peak before 2030?
At the beginning of June China released its 14th five-year plan (FYP) for renewable energy for the five years 2021-2025. Hu Min at Innovative Green Development Program, writing for Carbon Brief, reviews the plan’s targets and actions, and its implications. Unchanged from the 13th FYP, 25% of China’s energy will come from non-fossil sources by 2030. But the 14th FYP says at least half of the increase in electricity demand will be covered by … [Read more...]
Gravity Batteries: any nation can do it at scale using rocks
The beauty of gravity batteries is that they simply involve lifting (charging) and lowering (discharging) a heavy weight, explains Simon Read writing for the World Economic Forum. For pumped hydro, access to water and a geological height difference is needed. But if you’re using rocks or bricks, anyone can do it anywhere, and at any scale. The rest is just a construction job. No rare materials or minerals will ever be needed, nor chemicals that … [Read more...]
Energy security concerns are building momentum for Nuclear
The IEA’s latest report on nuclear power recommends a doubling of capacity by 2050. It emphasises that, though many advanced economies are planning a decline, 32 nations have nuclear today and reactors are now under construction in 19 countries. It’s evidence of a momentum behind nuclear power that should be further stimulated by recent spikes in oil, gas and electricity prices, says the IEA. Russia and China remain nuclear advocates, which … [Read more...]
4 ways to cut whole system electricity costs with flexible Demand Side Management
Right now, energy system costs are driven by generation capacity, infrastructure upgrades, network reinforcements, curtailment and constraint payments, and imbalance costs. What’s missing is the investment in a raft of demand side management assets that are ready to go but are not part of the market, therefore not rewarded, and therefore not being invested in. Laura Sandys at Energy Systems Catapult, writing for WEF, explains why flexibility must … [Read more...]
New thermophotovoltaic cells turn heat into electricity more efficiently than a steam turbine
Over 90% of the world’s electricity comes from heat-generating power plants using coal, natural gas, nuclear energy, and concentrated solar energy. Steam turbines have always been the standard for converting that heat into electricity. On average they are only 35% efficient, with moving parts that cannot cope with temperatures above 2,000 degrees Celsius. Jennifer Chu at MIT describes new research, in collaboration with NREL, that has led to a … [Read more...]
Russia-Ukraine: modelling the consequences for the European electricity market to 2050
Alex Schmitt, Christoph Kellermann, Calvin Triems and Huangluolun Zhou at Energy Brainpool have used their modelling tools to update their predictions of how the European electricity market will develop over the next 30 years, given a target of 99% emission-free generation in 2050. Projections are made on generation (mix and volumes) and price. The big change from their last predictions is the Russia-Ukraine war and Europe’s determination to ramp … [Read more...]
Reversible Hydrogen fuel cells: can H2 gas-to-power support the grid economically?
We know about making green hydrogen from excess intermittent wind and solar. We also know that that same intermittency means the gaps in wind and solar generation need filling. Green hydrogen is very expensive to make. But what if that green hydrogen could be economically converted back to power when needed? Writing for Stanford University, Edmund Andrews describes new research, in collaboration with the University of Mannheim in Germany, into … [Read more...]
Electricity markets with high shares of Wind and Solar will need Nuclear
When electricity markets have high shares of wind and solar – the goal of many regions around the world – is it more efficient to build a nuclear power plant instead of investing further in more renewable capacity? The answer is yes, according to a study by Machiel Mulder, Xinyu Li and Arjen Veenstra at the University of Groningen. In essence, it’s because nuclear benefits from the high (scarcity) prices when there’s little wind or sunshine. Here … [Read more...]
Renewable Ammonia’s role in reducing dependence on Gas
Today, IRENA and the Ammonia Energy Association (AEA) released its “Innovation Outlook Renewable Ammonia” which updates in detail the current state and prospects for green ammonia as an energy carrier. Here, Dolf Gielen, Francisco Boshell and Gabriel Castellanos at IRENA and Kevin Rouwenhorst and Trevor Brown at the AEA summarise the findings. Worldwide ammonia production, though fossil-based, is already at-scale as a feedstock for fertiliser. So … [Read more...]
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