The big budgets being talked about for the transition require us to decide how much to spend, and on what. Maximilian Auffhammer at the Energy Institute at Haas explains why he thinks a lot of the money being earmarked for buildings renovations would be better spent elsewhere. By the time the renovation wave has successfully âreached the shorelineâ in the next few decades buildings will be powered overwhelmingly by clean grids (thatâs the plan, … [Read more...]
How to ramp up Green Mortgages for climate-friendly house improvements
Green mortgages are used to finance climate-friendly house improvements. In the U.S. they already exist, but need to be made far more accessible and marketed widely. Greg Hopkins at RMI cites their report âBuild Back Better Homes: How to Unlock Americaâs Single-Family Green Mortgage Marketâ to explain that the financial markets are looking increasingly favourably at lending that is certified as ESG (environmental, social, and governance). … [Read more...]
“China and Europe – Energy Efficiency, the foundation of our net-zero future” [EVENT highlights and VIDEO]
We present the videos of the third of our three, 4-session workshops on the opportunities for European energy solutions providers to take part in Chinaâs energy transition, held on April 13th and 14th 2021. In this workshop the theme was efficiency, with special reference to finance, buildings, heating and cooling, and smart solutions. Both regions need to go beyond the efficiency "easy wins" so we take a close look at what Europe can offer as … [Read more...]
Energy efficiency is the âfirst fuelâ, making decarbonisation easier for all other sectors
To set up our upcoming online event âChina: Carbon Neutral by 2060 -EFFICIENCY FIRSTâ we look at the profound importance of efficiency to the global energy transition. Energy efficiency is the âfirst fuelâ, meaning success here will make the decarbonisation of all the other sectors and technologies easier, faster and cheaper. Basically, use and waste less energy. Alyssa Fischer at the IEA starts by noting that their Sustainable Development … [Read more...]
EU Recovery funds: where is the support for District Heating?
District Heating is an efficient way to heat homes, particularly in a country like Latvia where 58% of its primary energy consumption is used for heating. But SelÄ«na VancÄne at Riga City Council is very concerned that the draft EU Recovery plans do not include any support under the climate goals for district heating projects. Perhaps itâs because of a blind spot: most of Europe is prioritising individual heating units powered by electricity. … [Read more...]
Cooling: up-front costs are the barrier to new solutions that cut energy use by two-thirds
Existing, latest technology could be delivering the worldâs current air conditioning needs with just a third of the energy use, say Sneha Sachar at the AEEE (India) and Iain Campbell at RMI. The main barrier is the up-front costs. And thatâs for everything from improving the thermal efficiency of buildings to accelerating the deployment of the most efficient cutting edge ACs (at present, legal minimums lag behind the best ACs, and the best ACs … [Read more...]
German Geothermal: from 1.2TWh to 100TWh by 2050?
The IEAâs Sustainable Development Scenario sees the world's geothermal power generation tripling to almost 300 TWh by 2030. Thatâs because thereâs an almost unlimited supply that can provide power, heating and cooling. Itâs 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...]
UK heating plan still means 120 gas boilers installed for every low-carbon system
Though the UK is a leader in grid electrification it is a poor performer when it comes to the electrification of heating. In May the UK government proposed a clean heat policy to support the switch away from gas heating for 12,500 homes a year for two years. Jan Rosenow and Samuel Thomas at RAP say that looks like business as usual: for every one new low-carbon heating system, more than 120 gas boilers will be installed as normal. In 2019, 1.7m … [Read more...]
Tipping Points reached for Solar, Wind, Batteries, EVs. What of the other Clean Energy techs?
History shows a disruptive technologyâs tipping point can be under 5% of market share, thatâs all it takes. The number of horses in use peaked in the U.S. once car ownership reached 3%. Gas lighting in the UK peaked with electric lighting at just 2% of the market. Landline phones in the U.S. fell precipitously after mobiles captured 5% of the market. Ji Chen and Koben Calhoun at RMI argue the tipping point has already been passed for solar, wind, … [Read more...]
Developing nations: Efficiency is cheaper than Coal in Indonesia
Developing economies face a particularly big challenge in reducing emissions. Their economies are growing rapidly, industrialising and urbanising. Their populations surely deserve the same rewards of wealth that the rich countries â the historical and per capita big emitters - have experienced. Can they get there without all the emissions? Indonesia believes so, committing itself to 29% unconditional emissions reductions by 2030. Virginie … [Read more...]
Investing for tomorrow, because Energy subsidies will decline 25% by 2050 â analysis
IRENA has modelled energy subsidies to 2030 and 2050 for their pathway to meet the Paris targets. Here, Michael Taylor summarises their findings. Firstly, they estimate todayâs global direct energy sector subsidies to be $634bn/year (2017 figures). The vast majority, $447bn, went to fossil fuels. (By the way, he points out that none of these figures include the externality costs - pollution, healthcare, environment - which equate to trillions and … [Read more...]
Accelerate EV infra, buildings refits to use electricityâs looming spare capacity
How do we turn the pandemic downturn into an executable opportunity, above and beyond targets and promises? Chris Nelder at RMI presents data on how electricity load has dropped during the lockdown in the U.S. That load will return when the economy recovers. In the interim capacity will go unused. New capacity in the pipeline could be delayed. Nelder suggests policy makers grasp the opportunity to fill that gap and use that capacity by directing … [Read more...]
Multi-energy âislandâ Microgrids can increase grid resilience
As the number of different technologies producing power and providing storage increases, the grid is getting complicated. The best way to make it resilient against outages is therefore changing. The traditional way is to shut down the failing plant, leaving the rest of the grid to cope as best as it can with the change in voltage and frequency. Xi Zhang at the Energy Futures Lab, Imperial College, describes the research looking at multi-energy … [Read more...]
From Buildings to Solar Thermal: using electric charge to vary insulating properties tenfold
The insulating properties of a material donât normally vary. Applying an electric charge to a material can vary its electronic and magnetic qualities, but not its thermal conductivity, normally. David Chandler at MIT says now a team of researchers there have found a way to do it. Their âelectrical heat valveâ can increase the thermal conductivity of thin-film strontium cobalt oxide (SCO) on demand by running a charge through it after adding … [Read more...]
No Energiewende without WĂ€rmewende: making Germanyâs Heating emissions climate neutral (…nearly)
In Germany, space and water heating in buildings accounts for almost a third of total final energy consumption. Because over 90% of its 22m buildings are fuelled by oil and gas, that makes the sector emissions very intensive. The governmentâs ambition is to have a "nearly climate neutral building stock" by 2050. But although those emissions have fallen by 44% since 1990, progress has largely stagnated since 2011. Freja Eriksen at Clean Energy … [Read more...]
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