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Long-duration storage: mechanical, electrochemical, thermal. We’ll need all three

June 26, 2023 by Maria Chavez

“Long-duration” means the amount of time a power system can discharge electricity (this is different from long-term storage, i.e. the amount of time a system can store energy before discharging it). As Maria Chavez at UCS explains, it’s vital to the success of intermittent wind and solar roll-out which needs to store its excess generation for when it’s needed. And as electrification grows it will provide greater grid flexibility and resilience … [Read more...]

Filed Under: Energy, Storage Tagged With: discharge, electricity, electrochemical, lithium, LongDuration, mechanical, PumpedHydro, storage, thermal

New thermophotovoltaic cells turn heat into electricity more efficiently than a steam turbine

June 22, 2022 by Jennifer Chu

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...]

Filed Under: Energy, Innovations Tagged With: batteries, electricity, heat, maintenance, solar, storage, thermal, thermophotovoltaic, turbines

China should comfortably meet its 2030 Renewables target. But its emissions?

February 21, 2022 by Simon Göss

The long Covid lockdown seems to have had little effect on China’s electricity generation growth. In 2021, total generation increased by about 750 TWh (that’s around 1.3 times Germany's absolute total). Solar PV capacity grew by 53 GW last year (equal to the total installed solar capacity in Germany). Half of all offshore wind turbines installed worldwide in 2021 were off the coast of China: the strong additions were accelerated by the January … [Read more...]

Filed Under: Energy, Renewables Tagged With: additions, China, coal, electricity, emissions, fossil, generation, offshore, PV, solar, tariffs, thermal, wind

Intelligent, flexible Sector Coupling in cities can double the potential for Wind and Solar

December 16, 2021 by Yong Chen and Dolf Gielen

This week the European Commission tabled the Energy Performance of Buildings Directive (EPBD) which should accelerate the decarbonisation of buildings. Buildings and cities play a key role in the energy transition. And the target high shares of variable renewable power supply will be much more easily achieved if the sectors using them display demand flexibility. In essence, that means using or storing the excess wind and solar generation … [Read more...]

Filed Under: Buildings, Energy, Renewables Tagged With: buildings, charging, China, Cities, coupling, demand, EC, epbd, EVs, flexibility, heating, HVAC, hydrogen, modelling, sector, smart, solar, storage, thermal, VRE, wind

Nuclear-Wind hybrid plants for grid stability, Power-to-X and more

January 6, 2021 by NREL

How would you use a nuclear-wind hybrid plant and maximise its potential? When intermittent wind’s output falls, nuclear can step in to feed the grid. When it’s not doing that it can use its power to run the production of a wide range of commodities: from biofuels, hydrogen, pumped hydro to wastewater purification, desalination, chemical manufacturing and more – including straightforward thermal power for industry. In collaboration with NREL, the … [Read more...]

Filed Under: Energy, Nuclear, Renewables Tagged With: biofuels, chemicals, desalination, gas, grids, hydro, hydrogen, industry, JISEA, Nuclear, regulations, renewables, storage, thermal, wastewater, wind

China’s 2019 electricity generation reviewed as its next 5-year plan is drafted

March 24, 2020 by Simon Göss

Simon Göss breaks down the totals and additions for electricity generation in China. In 2019 the total reached 7,325 TWh (more than twice Europe’s) after adding 330 TWh (more than half Germany’s total). Of that 330 TWh, 120 TWh came from thermal (90%+ coal). But the numbers were dominated by renewables (hydro, wind, solar) which added almost 160 TWh. Though that’s the third year of declining renewables additions, wind and solar curtailment is … [Read more...]

Filed Under: Energy, Renewables, Transport and energy Tagged With: China, coal, curtailment, electricity, EVs, hydro, Nuclear, solar, thermal, wind

Most read this week

  • U.S. Inflation Reduction Act: one year on, a summary of impressive progress in the energy transition by Hannah Perkins | posted on September 19, 2023
  • 10 Carbon Capture methods compared: costs, scalability, permanence, cleanness by Ella Adlen | posted on November 11, 2019
  • Industry’s EU ETS reforms and CBAM: how firms can turn the rising cost of carbon into competitive advantage by Pablo Ruiz | posted on September 25, 2023
  • Affordable €25k EVs by 2025: Europe’s carmakers can do it. Instead they’re making more profitable SUVs by Transport & Environment | posted on September 22, 2023
  • Sodium-ion batteries ready for commercialisation: for grids, homes, even compact EVs by Carlos Ruiz | posted on September 11, 2023
  • Oil & Gas business is fatally flawed: Russia-Ukraine only delayed the relentless decline in prices by Clark Williams-Derry | posted on September 21, 2023
  • Understanding the new EU ETS (Part 2): Buildings, Road Transport, Fuels. And how the revenues will be spent by Simon Göss | posted on February 6, 2023
  • Micro-nuclear reactors: up to 20MW, portable, safer by Christina Nunez | posted on April 22, 2021
  • Concawe Symposium tackles climate and pollution as RED commits fuel companies to 29% renewable content from 2030 by Matthew James | posted on September 22, 2023
  • Though the price shocks hurt, Renewables installed between 2021-23 saved Europe €100bn by Joe Myers | posted on September 18, 2023
  • Space-Based Solar Power: getting closer as SpaceX and Blue Origin bring down the cost of heavy-lift launches? by Matteo Ceriotti | posted on September 20, 2023
  • Agrivoltaics: GWs of solar power from farmland using strategically placed panels (and raising crop yields) by Joshua Pearce | posted on September 26, 2023
  • What’s best for Hydrogen transport: ammonia, liquid hydrogen, LOHC or pipelines? by Herib Blanco | posted on May 5, 2022
  • EU Energy Outlook to 2060: how will power prices and revenues develop for wind, solar, gas, hydrogen + more by Alex Schmitt | posted on December 6, 2022
  • Gravity Batteries: any nation can do it at scale using rocks by Simon Read | posted on July 27, 2022
  • The 10 big problems with simply replacing fossil cars with electric by Schalk Cloete | posted on December 6, 2021
  • Farming Algae for Carbon Capture: new research cuts “fouling.” Scale-up in 3 years? by David Chandler | posted on June 21, 2023
  • EU Carbon Removal Certification Framework: new rules to turn greenwashing into genuine removals by Simon Göss | posted on May 16, 2023
  • Can Aluminium-air batteries outperform Li-ion for EVs? by Helena Uhde | posted on September 8, 2021
  • Can we expect Gas price volatility and spikes this winter? Why? by Michael Bradshaw | posted on September 8, 2023

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      Recent Posts

      Concrete supercapacitor: works like a battery, much cheaper, easy to make

      Agrivoltaics: GWs of solar power from farmland using strategically placed panels (and raising crop yields)

      Industry’s EU ETS reforms and CBAM: how firms can turn the rising cost of carbon into competitive advantage

      Concawe Symposium tackles climate and pollution as RED commits fuel companies to 29% renewable content from 2030

      Affordable €25k EVs by 2025: Europe’s carmakers can do it. Instead they’re making more profitable SUVs

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