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Climate change may alter building energy demand. Here, the authors quantify changes in residential electricity and natural gas demand in Los Angeles County and find that rising temperatures may increase electricity demand by 41–87% between 2020 and 2060, but improved efficiency could lower this increase to 28%.
To tackle the high energy consumption of buildings, information programs to promote investment in energy efficiency measures have been introduced. This study compares the effectiveness of three US programs and finds that despite large energy savings, progress is lacking for small and medium sized buildings.
Deployment of rechargeable Li metal batteries requires fast charging capability and long-term cycling stability. Here the authors demonstrate the battery application potential of using a small amount of LiPF6 in a dual-salt electrolyte.
Alternative energy is widely believed to proportionally displace fossil fuels. Here, the authors analyse displacement values for China between 1995 and 2014 and show that alternative energy, primarily hydropower, displaced ∼1/4 of a unit of fossil electricity, twice the global average.
Various programmes have been introduced to increase energy efficiency in buildings. A study of commercial buildings in Los Angeles, USA, now finds that voluntary certification programmes have been effective at lowering energy use, bringing savings of up to 30%.
Slowing GDP growth, a structural shift away from heavy industry, and more proactive policies on air pollution and clean energy have caused China's coal use to peak. It seems that economic growth has decoupled from growth in coal consumption.