Tag: Climate

Hot roofs above row house bedrooms cause sleep deprivation; public health laws needed

People who sleep in a top-floor bedroom under a black asphalt roof are likely to lose sleep on summer nights due to heat from the roof, with serious health consequences.  Technically, the fix is simple—coat every black asphalt roof with a white coating—but progress…

35 to 70 GW of solar, plus wind, could power all freight trucks in the U.S. or Europe

By Will Driscoll Many truck manufacturers are developing electric freight trucks, whose projected lower costs for fuel and maintenance would, by one estimate, quickly outweigh their higher purchase price. With this cost advantage, electric trucks could ultimately dominate freight trucking. A charging infrastructure for an all-electric…

A fast solar ramp in Hawaii can save $3-7 billion

By Will Driscoll Hawaii can save $3 to $7 billion by accelerating its transition to solar, according to an independent utility modeling analysis.  That conclusion is validated by the experience of the Hawaiian island of Kauai, where a new solar-plus-storage park will bring down the…

Global battery production capacity must grow 21 times to electrify the global vehicle fleet

By Will Driscoll Market and policy forces may drive a global transition to electric vehicles. Current and planned global battery manufacturing capacity is 313 gigawatt-hours per year. An estimated battery manufacturing capacity of 6600 gigawatt-hours per year would be needed to electrify the global…

China’s electric buses will cut global oil consumption by 0.5 percent

By Will Driscoll Shenzhen has replaced its diesel buses with 16,000 electric buses, and authorities there have determined that the electric buses will eliminate the use of 345,000 tons of diesel fuel per year. China is promoting electric buses to improve urban air quality…