The U.S. Department of Energy is funding research to get the cost of Concentrated Solar Power (CSP) down to $0.05 per kWh. One key element of that research is the materials used to absorb and store the heat energy. Three categories of materials are being looked at: liquid (i.e. molten salt), particle (like sand), and gaseous. NREL is leading the molten salt research, and there are multiple challenges. The salts can corrode the storage tanks and … [Read more...]
The Green Hydrogen disruption: what nations, firms and investors are doing to reshape global energy
Everyone knows the new hydrogen economy has huge up front capital costs to make the green H2 (called GH2), the logistical challenges of delivering it where it’s needed, and creating the customer base to consume it. But Tim Buckley at IEEFA believes the policy support is already shaping up to make GH2 a successful disruptor of the global energy system. He runs through the nations, companies and investors at the beginning of the learning curve that … [Read more...]
The right – and wrong – way to design a behind-the-meter Battery pilot
Here’s a story on how not to design a pilot project. The point of any pilot is to serve as the basis for larger rollouts. They should also be designed to maximise benefits. Joseph Daniel at the Union of Concerned Scientists describes how a U.S. utility in Michigan tried to create a pilot for behind-the-meter small-scale home storage. They wanted to invite anyone to apply to join. The problem was the likely applicants would be wealthy home owners. … [Read more...]
Piloting green shipping corridors: Australia-Japan and Asia-Europe
The shipping industry is diverse, disaggregated and part of the logistical chain of 80% of global trade. So reducing its emissions (3% of the global total) will be complex. One way to cut through this complexity is to create a limited number of green shipping corridors between major port hubs, to pilot solutions. This can shrink the challenge of coordination between fuel infrastructure, vessels, firms and national policies down to a manageable … [Read more...]
What do German households pay for power? Costs, surcharges, taxes, grid fees
Power prices in Germany are among the highest in Europe. Though the high costs are in large part due to the mandatory support for renewable energy sources, most customers continue to support the country's energy transition. That might be because German households only pay a little over 9% of their average monthly income on energy, similar to France and the Netherlands. In contrast, Bulgarian households spend more than 25% percent on electricity, … [Read more...]
E-fuels for cars are expensive, and pollute the air as much as petrol
MEPs and governments are currently deciding on an EC proposal for all new cars sold from 2035 to be 100% zero-emissions. Here, T&E present test results that show e-fuels should not be allowed to replace petrol. T&E are concerned that e-fuels are being promoted as a way to prolong the life of ICE vehicles. But their tests show that e-fuels produce just as much NOx, three times more carbon monoxide, and twice as much ammonia. Though e-fuels … [Read more...]
Hydrogen at COP26: committing to scale-up and creating demand
At COP26 the voice of hydrogen staked its claim to meeting its targets and its contribution to making the 1.5°C scenario a realistic ambition. Cato Koole and Thomas Koch Blank at Rocky Mountain Institute explain that hydrogen supply should not be the problem. The combination of deployed and announced projects already places the world close to the green hydrogen production capacity needed as outlined in the IEA’s "Net Zero by 2050" roadmap. The … [Read more...]
Industry’s large on-site batteries can profitably help stabilise the grid
Energy-intensive industries that invest in their own large on-site batteries will provide multiple benefits to themselves as well as to grid stability, says a new study by the Joint Institute for Strategic Energy (JISEA) in partnership with NREL and others. It matters because future power systems will need to be highly flexible due to the variability of wind and solar. The study assessed two established energy-intensive industries (chlor-alkali … [Read more...]
Avoiding renewables bottlenecks needs long term planning of electricity transmission infrastructure
As more renewables are rapidly added to grids, network operators must plan new transmission lines to integrate them immediately, avoiding wasteful bottlenecks. It’s a puzzle that’s getting bigger and more complex as the energy transition gains pace, which means transmission policy and planning must improve, and fast. Rather than making lots of small incremental steps, planning ahead will prove less costly and capture efficiencies and economies of … [Read more...]
Renewed interest in Carbon Capture strategies for net-zero: targets, obstacles, costs, priorities
Martina Lyons at IRENA picks out the highlights of their new report “Reaching Zero with Renewables: Capturing Carbon”. Carbon capture is going to be expensive, so should be focussed on hard-to-abate industrial sectors, as well as bioenergy plants. Lyons breaks down the target carbon capture volumes, costs and the investments required, as well as looking at the consequences of different strategies and carbon prices. Scaling up this technology, … [Read more...]
When Electrification is cheaper than maintaining Gas infrastructure
The gas sector continuously faces major expenses to maintain and replace aging distribution systems. Non-Pipeline Alternatives (NPAs) are solutions that avoid the scale of these infrastructure costs by judiciously spending money on cutting future gas use instead. Given gas’s limited long-term future in a net-zero world, this makes sense. It’s not just about efficiency wins, explains Max Dupuy at RAP who summarises their research. Gas utilities … [Read more...]
Germany: can 100% renewable power reduce energy costs within the decade?
A bold report is presented by Thure Traber, Hans-Josef Fell and Sophie Marquitan at Energy Watch Group. It says that a 100% renewable power system for Germany can undercut fossil power within this decade. The authors look at the full cost of fossil power, including subsidies. Importantly, they explain how unit costs will rise further, as demand declines, due to the decreasing utilisation of its expensive infrastructure. Meanwhile, total system … [Read more...]
IEA WEO 2021 message to COP26: 40% of clean energy goals will cut costs
The IEA’s latest World Energy Outlook was published on Wednesday. This year’s WEO-2021 is released earlier than usual to inform COP26 and, for the first time, is available for free to ensure the widest possible audience. Simon Evans at Carbon Brief offers his summary of the 386-page report, quoting relevant numbers and charts. He first points to the new scenario, Net-Zero Emissions by 2050 (NZE), as the IEA’s recognition that this is what … [Read more...]
Green hydrogen-based fuels pivotal in decarbonising Shipping by 2050
The international shipping sector’s emission levels are comparable to Germany’s. Like aviation and heavy transport, reaching net-zero will need renewable fuels – direct electrification won’t be sufficient. Existing fossil fuel engines allow for biofuel blends of up to 20% without any modifications, and 100% methanol engines are a proven technology. Making sufficient quantities of clean fuels - without consuming food crops – is the challenge. … [Read more...]
CEPP incentives and penalties: current design could undermine U.S. clean energy growth
The Clean Electricity Performance Program (CEPP) is a key part of President Biden’s energy and climate plans. It will steer utilities towards clean energy with incentives and penalties, and is still being designed. Severin Borenstein and James Bushnell at the Energy Institute at Haas, Steve Cicala at Tufts University and Ryan Kellogg at the University of Chicago warn that current proposals will allow utilities to game the system, resulting in … [Read more...]
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