President Biden's Leaders Summit on Climate last month helped focus minds on making firm commitments to reducing global emissions. As we all know, targets are one thing, credible and realistic solutions are another. To understand the challenge better, Dolf Gielen, Ricardo Gorini and Gayathri Prakash at IRENA break down into themes those areas that need much more effort and, if dealt with successfully, can get us to net zero by 2050: structural … [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...]
Plastic Solar Cells: OPV power conversion efficiency now reaches 18%
Donât just think plastics are insulators. Two Nobel prizes were won by showing they can be semiconductors. That celebrated research opened the door to polymer-based solar cells. They are made in a lab from common elements, using processes established decades ago for ordinary household items like plastic wrap. A design strategy breakthrough led by NREL has now created an organic photovoltaic (OPV) solar cell with a record-breaking 18.07% power … [Read more...]
Buildings Efficiency in China, and what EU partners should know
To set up our upcoming online event (April 13th & 14th) "China: Carbon Neutral by 2060 -EFFICIENCY FIRSTâ we look at how Buildings Efficiency is being tackled by Energy Management Contracting (EMC), when an ESCO (energy service company) provides energy retrofit services and gets paid for the future energy savings. The up-front investment cost is recouped over the multi-year lifetime of the service contract by taking a cut of the genuine … [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...]
Five practical steps Oil & Gas can take to accelerate their energy transition
The Oil & Gas sector has a role to play in the energy transition, and not just by winding down operations. Thatâs because they will, by most projections, continue to be a major part of the energy mix through to 2050. But their activities must transition too, explain Bart Valkhof, Pedro Gabriel Gomez Pensado and Wan Sayuti at the World Economic Forum. The sector must therefore work out which strategies and investments can produce the lowest … [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...]
EU Buildings Renovations: get ready for minimum energy performance standards (MEPS)
To meet Europeâs 2030 climate targets the buildings sector must cut its emissions by 60%. That means annual renovations need to jump by an order of magnitude; at the moment itâs crawling at 1% per year. Worse, standard renovations save very little energy, just 9% in homes and 16% in commercial buildings. Itâs the deep renovations that cut energy by 60% or more, but thatâs only happening to under 0.3% of the stock. Louise Sunderland at RAP … [Read more...]
Wave Energy: how variable geometry designs can raise conversion efficiency
Wave energy is another renewable technology waiting to break through. One main challenge is that about 35%â50% of WEC (wave energy converter) costs come from the device structure alone. Researchers at NREL are experimenting with variable geometry, changing the shape of the WEC so that in more energetic seas the structural loads are controlled. In turbulent seas the excess load can easily be shed, while when the seas are quiet the maximum energy … [Read more...]
Wide variations in National Energy and Climate Plans: how can the EU seriously budget for emissions reductions?
The EU has big and growing ambitions for emissions reductions by 2030: down 40% below 1990 levels, increasing the share of renewables to 32% of final energy consumption and improving energy efficiency by 32.5% above business-as-usual. These targets will be further revised as the more ambitious goal of cutting emissions by 55% by 2030 becomes legally binding. This means the EU as well as individual nations must estimate the cost of meeting these … [Read more...]
Policy-makers still undervalue Energy Efficiency as a grid resource
Supply-side solutions to grid stability are few in number, and expensive. More baseload generation, electricity networks, capacity markets that pay power plants all year round to be available for dispatch during a few peak hours. Demand-side solutions are usually smaller, and multitudinous: building fabric improvements, equipment upgrades, customer behaviour interventions, and more. So, for grid stability, the principle of âEfficiency Firstâ - … [Read more...]
Buildings Renovation in Germany: success story or potential failure?
The German Federal Association of Housing and Real Estate Companies (GdW) has claimed that money and effort spent on the nationâs buildings renovations have not worked. But Andreas RĂŒdinger at IDDRI has looked into the evidence and concluded that the opposite is the case. CO2 emissions from the residential sector in 2018 were 37% lower than in 1990. Though final energy consumption was broadly stable, thatâs because efficiency gains were offset by … [Read more...]
New research into Catalysts can boost Hydrogen manufacture
Catalysts are materials used to enable and accelerate a chemical reaction. There is a long history of using them in industry to manufacture different hydrocarbons, ammonia, sulfuric acid, and the list goes on. By choosing your materials well and tinkering with the structure at the molecular level, the catalyst can greatly improve the efficiency of the conversion process. Glennda Chui at the SLAC National Accelerator Laboratory describes how their … [Read more...]
A new EU Gas Market must expose it to all clean energy solutions, not just gas-on-gas
Towards the end of this year the EC is expected to issue new proposals for gas legislation, a once in a decade market reform. Simon Skillings and Lisa Fischer at E3G highlight the big difference between the design of gas and electricity markets for Europe. The electricity market is growing, the gas market needs to shrink. The authors quote figures showing that the EU's 55% emissions reduction target for 2030 means natural gas use will reduce by … [Read more...]
Quantum Well solar cell sets new record for converting light to energy
Thereâs a new world-record for two-junction solar cells, converting 32.9% of sunlight into electricity. Although itâs only a small improvement on the previous record of 32.8% it uses a design that should lead to even greater performance. NREL, in collaboration with the University of New South Wales (Australia), has built a cell consisting of a series of more than 150 ultrathin layers of alternating semiconductors that create quantum wells which … [Read more...]
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