It’s a considerable challenge to predict, decades in advance, what the world will need and get it from lab to market. Madeline Geocaris and Andrea Wuorenmaa at NREL summarise four case studies that reveal the key elements required: a good balance of technology, R&D, and public-private partnership; regulatory and market force alignment; good timing for market opportunities. The goal is the optimal pathway to the successful first … [Read more...]
Comparing the efficiency and progress of the 5 leading Solar PV cell technologies
NREL’s “Best Research-Cell Efficiency Chart” allows researchers to easily compare the performance of specific PV technologies, stretching back 50 years. It’s regularly updated and is free to use, explains Wayne Hicks and Harrison Dreves at NREL. A new “interactive” version is now available. The focus is on crystalline silicon cells, single-junction gallium arsenide cells, multijunction cells, thin films, and emerging PV. For example, you can … [Read more...]
Turning waste biomass into clean fuel: cheap, portable equipment, cuts emissions, earns income for rural poor
The burning of biomass accounts for 10% of primary energy used worldwide: wood, peat, animal dung, corn stalks, rice husks, hay, straw, and other agricultural waste. Billions of people, mainly in remote and poorer regions, rely on such fuels for cooking, heating, and other household needs. But it’s a major source of emissions as well as pollution. And, annually, an estimated $120bn worth of crop and forest residues are burned out in the open … [Read more...]
China: decades of support for innovation is now delivering results
The evolution of China’s clean energy sector used to be based on a technology catch-up approach, which meant secondary innovation based on imported technologies. Daisy Chi at ECECP looks at the IEA’s recent report, “Tracking Clean Energy Innovation: Focus on China”, to conclude that the nation is now a major force in clean energy innovation. Decades of innovation-focussed policies, strong funding support, institutional reforms, big targets and … [Read more...]
New research into making water boil using less energy
Can the boiling of water be done more efficiently? If so, a wide range of processes can save energy, not least the standard use of steam turbines in electricity generators. David Chandler at MIT describes research there that modifies the surface of the heating element. A combination of microscale dents and nanoscale bumps and ridges on the surface, and pillars that allow the “wicking” of water by capillary action, improves the efficiency of … [Read more...]
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