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Energy Post

The best thinkers on energy

4 ways to cut whole system electricity costs with flexible Demand Side Management

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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...]

Russia-Ukraine: modelling the consequences for the European electricity market to 2050

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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...]

Manifesto: fit-for-purpose flexible grids for the clean electrification of Europe

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The integration of new clean generation sources on top of the increase in electrification of industry, e-mobility, and heating and cooling means grid investment must be made a priority. Anything else will leave deployment-ready solutions waiting, slowing down the transition. The backdrop is that over one third of the EU’s grids are already more than 40 years old. Eurelectric has produced a manifesto, “Connecting The Dots”, that estimates … [Read more...]

U.S. FERC proposal for grid planning has serious flaws around benefits and beneficiaries

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The U.S. Federal Energy Regulatory Commission (FERC) is in the midst of a key rulemaking on planning and building an electric grid. But the plan has serious flaws, says Mike Jacobs at UCS, rooted in the lack of coordination and control at the federal level. FERC wants the states to work with the utilities to define the sharing of benefits and costs from transmission, describe resource areas (like wind, solar, geothermal) where transmission is … [Read more...]

Piloting peer-to-peer electricity markets in China and the EU

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Peer-to-peer (P2P) electricity trading is being promoted, to varying degrees, in both the EU and China. It allows individual citizens and businesses to produce and trade their own solar power (local, rooftop), while enabling the close-to-real-time balancing of supply and demand to maintain system stability. Helena Uhde at the ECECP gives an insight into the current status, implementation, regulations and policies in both regions. She cites two … [Read more...]

Germany’s electrification ambitions: TSOs scenario for 91% Renewables by 2045

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The German TSOs submitted in January scenarios for their grid to 2037, making projections for increasing electrification. In addition, and for the first time, they included an ambitious and long term scenario to 2045. By pure chance, the Russian invasion of Ukraine and Germany’s response – to consider a reduction in its serious dependence on Russian energy imports – should make eyes turn sharply towards that 2045 scenario. Simon Göss at cr.hub, … [Read more...]

Grid-scale modelling of Distributed Energy Resources and dynamic pricing for all customers

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Smart grids can solve multiple problems now and throughout the lifetime of the energy transition. The supply from hundreds (existing + new wind, solar, etc.) and ultimately millions (rooftop solar, EV batteries) of power sources can be matched in real time with demand from all major customer devices (air conditioners, water heaters, batteries, EVs). Dynamic pricing keeps the peaks low and the troughs high. It takes the pressure off total load, … [Read more...]

The right – and wrong – way to design a behind-the-meter Battery pilot

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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...]

Replacing centralised power with Distributed Energy Systems needs new policies and coordination

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We need integrated resilient smart grids that can accommodate the rapid growth of intermittent renewables as well as the rise of “prosumers” who both buy and sell electricity into the grid. This is the focus of three online discussion sessions on February 8th, 9th and 10th organised and hosted by power management company Eaton. The proliferation of multiple generation sources (solar, wind, batteries and other clean, flexible technologies) means … [Read more...]

What do German households pay for power? Costs, surcharges, taxes, grid fees

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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...]

Using ENTSO-E’s modelling for China’s grid expansion

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The EU and China have similar challenges when expanding their complex grid network. Both have large populations and multiple borders (China has 23 provinces, five autonomous regions, four municipalities and two administrative regions). Both must rapidly add clean power whilst ensuring energy security at the lowest cost. Helen Farrell at ECECP describes their project to use European ENTSO-E modelling tools to assess scenarios for China. One key … [Read more...]

New research shows Wind turbines, configured right, could provide grid stability

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Research at NREL, in collaboration with GE, has led to a demonstration of common wind turbines in “grid-forming mode”. They managed to set the grid voltage and frequency, operating without power from the wider electric grid. It opens the door to reducing reliance on conventional sources of stability like coal or gas generators. The well-known weakness of wind is its variability and therefore its need to be supported by traditional baseload … [Read more...]

Berkeley Lab study investigates how plentiful electricity turns wholesale prices negative in the US

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The year 2020 upended routines in nearly all aspects of our lives. In the realm of energy economics, we saw prices turn negative for U.S. crude oil, natural gas, and wholesale electricity. While negative prices were unprecedented for oil, similar conditions existed for natural gas in 2019, when pipeline capacity could not accommodate the rapid expansion of associated gas production in the Permian Basin. For electricity, which in comparison to oil … [Read more...]

Industry’s large on-site batteries can profitably help stabilise the grid

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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...]

Distributed Energy Resources and Smart Grids: an opportunity or a distraction?

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Distributed Energy Resources (DERs) are poorly understood by the utilities, explain Doyob Kim and Alyssa Fischer at the IEA. Part of the problem is that new innovations and solutions are coming fast, and policy-makers aren’t creating the incentives and frameworks to make them an imperative. But, done right, the successful integration of DERs into the grid will accelerate electrification, address grid stability, and reduce spending on expensive … [Read more...]