Energy Post

The best thinkers on energy

Deep Geothermal: accessing 500°C for steam turbines. Can it make coal, gas, nuclear redundant?

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The concept of “deep geothermal” is very simple. Dig deep enough, like 20km, to access a permanent reservoir of 500°C of heat. There, you generate the steam to power your turbines. The digging of a stable hole and getting the steam to the turbine is the big engineering challenge. But if you find a way that allows you to do it anywhere in the world (i.e. not limiting yourself to existing geological formations), nobody will ever need other … [Read more...]

The Mining industry should simultaneously be testing for Geothermal potential

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In Nevada alone, the mining industry drills over 2,000 exploration holes per year. They do so to the depths needed to also verify whether the location is suitable for geothermal energy, so it makes sense for them to assess suitability not just for minerals but for geothermal, explains Ryan Horns writing for NREL. Leveraging that data, knowledge, and expertise will expand the geothermal exploration workforce, increase the rate of geothermal … [Read more...]

District Heating: policies for cutting emissions need work says IEA

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District Heating policies need urgent attention according to the IEA so here in Europe it's a good moment to examine what the "Fit for 55" package means for the sector's future development. On February 10 Energy Post is hosting an online roundtable alongside MEP Pernille Weiss, MEP Morten Petersen, and MEP Grzegorz Tobiszowski - all (senior) members of the ITRE committee - to take in the viewpoints of key Member States and stakeholders (COGEN … [Read more...]

What patents tell us: which countries, what sectors, are the clean energy innovators?

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Today’s solutions cannot give us a successful transition on their own. That’s why the innovations coming down the pipeline are so important. One way to measure what, and who, is innovating is to look at the number of patents being filed for low carbon energy (LCE), explains Sean Fleming writing for the World Economic Forum. He summarises the latest report from the European Patent Office and the IEA, “Patents and the energy transition: Global … [Read more...]

No more “offsetting”: Google commits to 24/7 locally sourced carbon-free electricity by 2030

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By “offsetting” fossil electricity consumed at one data centre through buying green power from somewhere else, Google has been 100% renewable since 2017. But offsetting always has its flaws. In this case, 40% of Google’s actual power still comes from fossil fuels. Google’s new plan, to be 100% green 24/7 straight off the local grid, is designed to solve that. It will also send market signals to increase clean capacity locally, not just where you … [Read more...]

German Geothermal: from 1.2TWh to 100TWh by 2050?

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The IEA’s Sustainable Development Scenario sees the world's geothermal power generation tripling to almost 300 TWh by 2030. That’s because there’s an almost unlimited supply that can provide power, heating and cooling. It’s also a continuous supply uninterrupted by the weather, unlike solar and wind. The plants are small and quiet. For heating, ground-source heat pumps use significantly less electricity than other technologies. Writing for CLEW, … [Read more...]

2019-2024: competitive auctions will launch over 2/3rds of utility-scale renewables, says IEA

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Government support for new utility-scale capacity is being replaced with competitive auctions, the surest sign that the commercial appetite for renewables - particularly solar PV and onshore wind - is growing strong. This article by the IEA pulls out the essential numbers from their annual Renewables 2019 report (their 5-year market analysis and forecast for renewable energy and technologies in the electricity, heat and transport sectors). The … [Read more...]

Cheaper than coal: IRENA’s comprehensive report on cost declines, all renewables categories

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The International Renewable Energy Agency’s (IRENA) latest report Renewable Power Generation Costs in 2018 details the global weighted-average levelised cost of electricity (LCOE) for all commercially available renewable technologies. It states that renewables are already the lowest-cost source of new power generation in many parts of the world today. By as soon as 2020, onshore wind and solar PV will join hydropower in consistently offering a … [Read more...]

Kenya, Bangladesh: Environmental rulings stall coal plans. So should the economics

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The construction of two coal-fired power plants has been stalled in Kenya by the Kenyan courts and in Bangladesh by UNESCO, both for environmental reasons. It’s an opportunity for the two countries to also recognise the purely commercial reasons to go for renewables, says Simon Nicholas of IEEFA. While most of Asia has been powering ahead with renewables, Bangladesh has been lagging behind. But a continued rollout of renewable energy will quickly … [Read more...]

36bn GWh: the “limitless” Geothermal from old UK coal mines

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The Earth gets hotter by 2.5C to 3.5C with each 100m depth. It’s what makes geothermal energy possible, anywhere. In the UK geothermal could meet the nation’s heat demands for at least 100 years, say Jon Gluyas, Andrew Crossland and Charlotte Adams of the Durham Energy Institute. Properly managed it could last indefinitely. Given that heat does not travel well, geothermal must be developed locally. Fortunately, accessible heat lies beneath or … [Read more...]

EXCLUSIVE: Geothermal could represent a far bigger share of renewables

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The IEA says geothermal energy could account for only 3.5% of annual global electricity production and 3.9% of energy for heat (excluding ground source heat pumps) by 2050. But is this down to short term thinking? Geothermal could make a much bigger contribution to renewables, provided it is put onto the fast track like wind and solar, says Alexander Richter, President of the International Geothermal Association. … [Read more...]

Here’s how to build 100% clean renewable energy in the US before 2040

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There really is a feasible way to build our way out of the climate crisis in time to avoid the worst effects of global warming, writes Tom Solomon of 350 New Mexico. We do it by rapidly replacing all fossil fuel-based energy with renewable energy built with current technology, installed in a smart grid. We pay for it without damaging the economy and actually save money vs. our current reliance on fossil fuels. The ‘side benefits’ include cleaner … [Read more...]

Wind top new power capacity source in Europe

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In 2015 12,800 MW of new wind power capacity was installed in the EU, an increase of 6.3% over 2014, and more than any other form of power generation, according to recent new figures from the European Wind Energy Association (EWEA). Wind power accounted for over 44% of total power capacity installations in the EU last year. … [Read more...]

The new Polish government’s energy policy: expect more State, less market

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The new Polish government will not just resist ambitious EU climate targets, it will also increase the role of the State in the energy sector, write researchers Kacper Szulecki (University of Oslo) and Andrzej Ancygier (Climate Analytics) . The conservative Law and Justice Party that has been swept into power intends to create a Ministry of Energy, which will take control of the major Polish energy companies, note the authors. The likely new … [Read more...]