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“Rebound Effect”: cheap LEDs mean more lights everywhere. But brighter homes, offices and public spaces are worth having

May 15, 2023 by Lucas Davis

LEDs are 90% more efficient than modern incandescent bulbs. Their rapid uptake has resulted in measurable cuts in energy demand and emissions. But their plummeting cost over the last ten years is also causing a “rebound effect” where people are using more and more LEDs, not least for outdoor lighting. Lucas Davis at the Haas School of Business believes we must embrace it, even if it’s counter to maximising energy savings. More and brighter … [Read more...]

Filed Under: Energy, Energy efficiency, Innovations Tagged With: buildings, consumption, demand, efficiency, incandescents, LEDs, lighting, lumens, ReboundEffect

Russia–Ukraine war: household energy costs worldwide have nearly doubled, with the poorest hit hardest

March 2, 2023 by Klaus Hubacek, Jin Yan, Yuli Shan and Yuru Guan

A new study measures the effect of the Russia-Ukraine war on household energy costs worldwide. It’s nearly doubled, explain Klaus Hubacek, Jin Yan and Yuru Guan at the University of Groningen and Yuli Shan at the University of Birmingham. Their study sums the costs of direct energy like heating, cooling, lighting and mobility, as well as the indirect costs through the energy used to produce goods and services. That doubling translates into an … [Read more...]

Filed Under: Energy, Oil, Gas & Coal Tagged With: cooling, costs, Energy, goods, heating, JustTransition, lighting, mobility, poverty, Russia, services, Ukraine

The light bulb transition: when standards and subsidies promote sub-optimal technologies

June 21, 2022 by Lucas Davis

This article is for those who want to understand the importance of timing: when is the right time to impose new standards and start/stop subsidies, to optimise the pathway to maximum efficiency? The light bulb transition of the last two decades is one of the successes of energy efficiency: from the old incandescents (15 lumens/watt) to halogen incandescents and CFLs, and then, finally, to LEDs (80 lumens/watt and prices falling 90% in ten years). … [Read more...]

Filed Under: Energy, Energy efficiency Tagged With: CFLs, efficiency, halogen, incandescents, LEDs, lighting, lumens, regulations, standards, subsidies

Grid-Interactive Efficient Buildings: how to start saving from day one

December 3, 2021 by Edie Taylor, Rebecca Esau and John Matson

Edie Taylor, Rebecca Esau and John Matson at Rocky Mountain Institute explain how their report “Grid-Interactive Efficient Buildings Made Easy” identifies simple, low-cost steps that produce immediate cost, energy, and carbon savings. As utilities evolve their pricing structures to encourage users to avoid peak times, building managers must ready themselves with the controls that will allow them to buy electricity when it is cheapest. Demand … [Read more...]

Filed Under: Buildings, Energy Tagged With: buildings, demand, efficiency, flexibility, grids, HVAC, lighting, utilities

Perovskites: the next generation of solar cells and lighting?

September 23, 2020 by Sam Stranks

Enthusiasm about the discoveries being made about perovskite materials is spreading, explains Sam Stranks at the University of Cambridge. Perovskite solar cells hit 25.2% efficiency in 2019, not far off crystalline silicon cells at 26.7%. Research is suggesting that figure could rise higher still. Perovskite can be “tuned” to absorb particular frequencies of light, allowing different layers of perovskites to absorb different and therefore more … [Read more...]

Filed Under: Energy, Innovations, Renewables Tagged With: efficiency, electricity, LEDs, lighting, perovskite, silicon, solar

Ad van Wijk: “The energy sector has nothing to do with energy companies anymore”

September 2, 2015 by Sonja van Renssen

There are many developments in the world today that have far more influence on the energy sector than the energy sector itself, says technology visionary Ad van Wijk in this exclusive interview with Energy Post. The Professor in “Future Energy Systems” at Delft University of Technology in the Netherlands explains how LED lighting, a DC grid, fuel cell cars, the Internet of Things and 3D printing are upending our energy system as we know it. “The … [Read more...]

Filed Under: *, Energy, Energy Outlooks, Innovations, KIC B booster Tagged With: buildings, electricity market, energy efficiency, energy storage, energy transition, EU energy policy, grid, lighting, renewables, smart grids, sustainable mobility, transport

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
  • Sodium-ion batteries ready for commercialisation: for grids, homes, even compact EVs by Carlos Ruiz | posted on September 11, 2023
  • Though the price shocks hurt, Renewables installed between 2021-23 saved Europe €100bn by Joe Myers | posted on September 18, 2023
  • 10 Carbon Capture methods compared: costs, scalability, permanence, cleanness by Ella Adlen | posted on November 11, 2019
  • Germany plans for Carbon Capture in Industry: emissions, potentials, costs by Simon Göss | posted on September 15, 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
  • Micro-nuclear reactors: up to 20MW, portable, safer by Christina Nunez | posted on April 22, 2021
  • 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
  • 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
  • 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
  • Farming Algae for Carbon Capture: new research cuts “fouling.” Scale-up in 3 years? by David Chandler | posted on June 21, 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
  • The 10 big problems with simply replacing fossil cars with electric by Schalk Cloete | posted on December 6, 2021
  • Can Aluminium-air batteries outperform Li-ion for EVs? by Helena Uhde | posted on September 8, 2021
  • The final hurdle for 100% Sustainable Aviation Fuel? Turning Lignin biomass into the “aromatic” component by Nancy Stauffer | posted on September 13, 2023
  • EU Carbon Removal Certification Framework: new rules to turn greenwashing into genuine removals by Simon Göss | posted on May 16, 2023
  • Europe’s grid bottlenecks are delaying its energy transition by Eurelectric | posted on September 6, 2023
  • Rooftop Solar: will subsidies benefit wealthy early adopters, while grid limits lock out the latecomers? by Juan Jose Cuenca Silva | posted on September 14, 2023
  • 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

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  • 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
  • Oil & Gas business is fatally flawed: Russia-Ukraine only delayed the relentless decline in prices
  • Space-Based Solar Power: getting closer as SpaceX and Blue Origin bring down the cost of heavy-lift launches?
  • U.S. Inflation Reduction Act: one year on, a summary of impressive progress in the energy transition
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        Recent Posts

        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

        Oil & Gas business is fatally flawed: Russia-Ukraine only delayed the relentless decline in prices

        Space-Based Solar Power: getting closer as SpaceX and Blue Origin bring down the cost of heavy-lift launches?

        U.S. Inflation Reduction Act: one year on, a summary of impressive progress in the energy transition

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