Hundreds of millions of buildings across the world need clean heating. But retrofitting them all for heat pump installation is going to be expensive, disruptive, and take a long time. Michael Siebert at Nottingham Trent University describes a completely different approach, using new high-tech infrared fabrics that emit heat. Made of graphene, they can be installed as easily as wallpaper. The radiated heat can be felt instantly, unlike the slow … [Read more...]
Buildings: how can Europe reduce emissions from Construction?
11% of global energy-related carbon emissions are embedded in the construction of buildings. Though focus has been on reducing operational emissions (28%, from heating and cooling, power etc.) there is not enough attention paid to construction, explains Carolina Kyllmann at CLEW. She looks at all the issues, including production of materials, transport to the site, construction, renovations, demolition and reuse of materials, and more. Kyllmann … [Read more...]
Electrostatic Generator fabrics can capture energy from cars depressing roads, swaying buildings + more
Literally anything that moves is using energy that can be harnessed. Not just waves rolling toward shore but cars depressing roads, buildings swaying in the wind, and much more. One way to harness it is to create a material that can be woven into the fabric of roads and buildings so that it captures the energy and converts it into electricity. Caitlin McDermott-Murphy at NREL describes research into Hexagonal Distributed Embedded Energy … [Read more...]
Geothermal Heat Pumps at scale avoid the cost of expensive long-distance transmission lines
A new analysis reveals that installing geothermal heat pumps in 70% of U.S. buildings can reduce the need for new long-distance transmission lines by 33%, explains Kelly MacGregor at NREL. The main message is that, though geothermal deployment is seen as expensive, the avoided costs are significant. Those transmission lines won’t be needed because geothermal is always local and can be deployed in both urban and rural places. Though the widespread … [Read more...]
EU ETS or national climate targets? We need both
The choice between using the EU ETS or national climate targets to decarbonise is a false dilemma. We need both, explains Chiara Corradi at T&E writing for the Florence School of Regulation. There are plenty of examples where a carbon market and national targets have delivered good results together, as in Germany, Finland, Denmark and Portugal. And, looking ahead over the next few decades, the right policies should be able to cope with ETS … [Read more...]
2024 a tipping point for Sustainable Buildings? Demand now outstrips supply in major cities
Guy Grainger at JLL, writing for WEF, believes 2024 will be the tipping point when returns for investing in sustainable office buildings will start to pay dividends for building owners. That’s because, according to JLL research, there is now a good premium on rents for sustainable buildings in important locations: just over 7% across eight cities in North America, around 10% across nine cities in the Asia Pacific and more than 11% in London. In … [Read more...]
2023: a year of climate backlash? Or a show of Europe’s green resilience
Looking at the mainstream media 2023 seemed to be a year of climate backlash, but the real story was Europe’s green resilience, writes William Todts at T&E. Though support in the German coalition for 100% electric vehicles by 2035 started to unravel, it didn’t: allowing combustion cars to keep running after 2035 on 100% e-fuels should change little given there’s no way such vehicles, if they ever get built, could compete with EVs, says Todts. … [Read more...]
EU Energy Outlook to 2060: power prices and revenues predicted for wind, solar, gas, hydrogen + more
Huangluolun Zhou, Elena Dahlem and Alex Schmitt at Energy Brainpool present their updated “EU Energy Outlook 2060”, modelling how the European energy system will undergo major changes in the coming decades while continuing to guarantee a secure supply and meet its climate targets. What do these developments mean for power prices, revenue potential and risks for solar PV and wind? The two main scenarios are “Central” and “GoHydrogen” for the EU 27 … [Read more...]
Thermal Energy Storage for heating and cooling Buildings: finding materials that melt at room temperature
Thermal Energy Storage (TES) in individual buildings can cut heating and cooling costs while delivering grid stability, explains Ryan Horns writing for NREL. Back in the 1800s blocks of ice were shipped to cities to cool buildings down. Today, research is underway to identify materials that can be heated or cooled by excess grid power and release or absorb heat when needed. Similarly, materials are being researched and developed that “phase … [Read more...]
Annual Energy Efficiency improvements must double to meet climate targets. We know how to do it
Global energy intensity – a measure of how efficiently the global economy uses energy – improved by just over 2% in 2022. That needs to double to 4% annually to 2030 to meet global efficiency targets, explains Brian Motherway at the IEA. If achieved, by 2030 one unit of energy used will generate 40% more economic output than today. That’s huge, and shows why few other policy areas offer such widespread benefits. More than half of the 150 … [Read more...]
IRENA’s Innovation Week 2023: Renewable solutions to decarbonise end-use sectors
At the end of September IRENA held a four-day event “Innovation Week 2023: Renewable solutions to decarbonise end-use sectors” in Bonn, Germany. A wide range of speakers discussed tangible solutions to decarbonise energy intensive sectors such as transportation, buildings and industry, informed by first-hand project experiences and supported by insights from IRENA’s in-depth analyses. Topics included direct and indirect electrification, green … [Read more...]
Biosolar Roofs: solar panels mixed with vegetation can boost both power output and biodiversity
A biosolar roof is one that has installed both vegetation and solar panels on the top of a building. Does the presence of one obstruct the other, or do they in fact enhance each other? The answer is the latter, explain Peter Irga, Fraser Torpy, Eamonn Wooster, Charles Sturt, Robert Fleck at the University of Technology Sydney and Jack Rojahn at the University of Canberra who summarise their study. The vegetation cools the panels closer to their … [Read more...]
Concrete supercapacitor: works like a battery, much cheaper, easy to make
Capacitors work like batteries. They store and discharge electricity. David Chandler at MIT explains how researchers there have designed a supercapacitor from concrete and carbon black, two cheap and common materials. The beauty of the idea is that they can be incorporated into building foundations, thus installing a battery virtually for free. A concrete capacitor cube 3.5m wide can store 10kwh, enough for a household. Similarly, concrete … [Read more...]
U.S. Inflation Reduction Act: one year on, a summary of impressive progress in the energy transition
The U.S. Inflation Reduction Act has been described as unprecedented in its ambition for the nation’s energy transition. One year on from the passing of the bill in August 2022, Hannah Perkins and Adam Aston at RMI describe the progress on implementation as unprecedented too. The authors break their review down into categories: clean tech manufacturing, electrifying transport, greening buildings, decarbonising electricity, transforming industry, … [Read more...]
Iron and Steel: how can Hydrogen and Direct Electrification replace fossil-based production?
Karan Kochhar, Luis Janeiro and Francisco Boshell at IRENA look at the decarbonisation of iron and steel. They account for about 7% of global energy–related carbon emissions. The authors explain what’s needed for green hydrogen and direct green electrification to take over from traditional fossil-based production. Many projects are in the pipeline, and the authors reference case studies like H2 Green Steel, SIDERWIN and Boston Metal. Though that … [Read more...]
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