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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

  • Critical Minerals: will there be enough to meet the 2050 net-zero emissions target? by Lilly Yejin Lee | posted on March 14, 2023
  • U.S. IRA: what can Europe do to stop its firms relocating to America? by Charles Wessner | posted on March 17, 2023
  • Germany: does the LNG infrastructure build-up deliver energy security or go too far? by Julian Wettengel | posted on March 13, 2023
  • 10 Carbon Capture methods compared: costs, scalability, permanence, cleanness by Ella Adlen | posted on November 11, 2019
  • Blending Hydrogen into the gas network: the challenges of pipeline fractures, faster flow rate + more by NREL | posted on March 10, 2023
  • Fulfilling U.S. wind and solar ambitions will use under 1% of its land (that’s less than the fossil fuel footprint) by Steve Clemmer | posted on March 16, 2023
  • What is the future of Woody Biomass in the EU energy mix? by Simon Göss | posted on March 21, 2023
  • Analysis: U.S. IRA subsidies put two-thirds of Europe’s battery production pipeline at risk by Transport & Environment | posted on March 9, 2023
  • Micro-nuclear reactors: up to 20MW, portable, safer by Christina Nunez | posted on April 22, 2021
  • What’s best for Hydrogen transport: ammonia, liquid hydrogen, LOHC or pipelines? by Herib Blanco | posted on May 5, 2022
  • Buildings “Energy Performance Certificates”: piloting new tools to ramp up renovations by Patricia Contreras Tejada | posted on March 20, 2023
  • 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
  • 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
  • “Combustion” can make cathodes for lithium-ion batteries more cheaply, quicker, using less energy by Nancy Stauffer | posted on March 15, 2023
  • The 10 big problems with simply replacing fossil cars with electric by Schalk Cloete | posted on December 6, 2021
  • Hydrogen’s innovation pipeline: signals strong ahead of World Hydrogen Summit in Rotterdam, May 9-11, 2023 by Ian Shine | posted on March 21, 2023
  • Germany is developing a strategy for Carbon Capture and Storage to meet its 2045 net zero target by Simon Göss | posted on February 23, 2023
  • Gravity Batteries: any nation can do it at scale using rocks by Simon Read | posted on July 27, 2022
  • Can Aluminium-air batteries outperform Li-ion for EVs? by Helena Uhde | posted on September 8, 2021
  • Electricity Market Design: how can reforms accelerate the transition and help cut energy prices? by Simon Göss | posted on February 13, 2023

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        Recent Posts

        What is the future of Woody Biomass in the EU energy mix?

        Hydrogen’s innovation pipeline: signals strong ahead of World Hydrogen Summit in Rotterdam, May 9-11, 2023

        Buildings “Energy Performance Certificates”: piloting new tools to ramp up renovations

        U.S. IRA: what can Europe do to stop its firms relocating to America?

        Fulfilling U.S. wind and solar ambitions will use under 1% of its land (that’s less than the fossil fuel footprint)

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