>1/3 of all U.S. energy is consumed by industry, says U.S. Department of Energy. Most industrial energy is supplied from natural gas and petroleum; electricity is a distant third, followed closely by coal, DOE says. Much energy per unit of product? You’re among the best candidates for efficiency efforts. www.doe.gov

1% is the probable reduction in daily U.S. electricity use with Daylight Savings Time. www.energy.ca.gov/daylightsaving.html

50% increase in 2007 solar cells (photovoltaics) production, increasing to 3,800 megawatts worldwide, according to news at www.semiconductor.net

32 MB PDF document outlines who’s doing business with the U.S. EPA, as of January 2008. www.epa.gov/oam/ptod/ek1rpt.pdf

118 references return, as of early March, by searching “motor efficiency” atop www.controleng.com

1st in installing emissions-reduction on existing plants and building new generation facilities among electric utilities was American Electric Power, says the utility, based on 2007 capital invested, including advanced emissions-control equipment on 3,500 MW of coal-fueled generation and construction of a 340 MW gas-fueled power plant. www.aep.com

40 mpg.org praised the International Energy Agency, an advisory body for 27 industrialized countries, for pointing out that many European nations, Japan, and China have stricter standards than the new U. S. Corporate Average Fuel Economy standards for cars and light trucks. www.40mpg.org, www.iea.org

423 mpg is the energy efficiency of moving a ton of freight on rail, three times that of over-the-road alternatives, says CSX. Since 1980 railroads improved locomotive fuel efficiency about 80%. http://CSX.com

130 mpg with 120 mile range is expected from the Aptera (Greek for wingless flight); Toyota and Honda hybrids get 40-48 mpg. Production of the hybrid electric (or all electric) vehicle, which looks more like an airplane than a car, is scheduled for late 2008. Regulators call it an enclosed motorcycle; some safety attributes are said to exceed today’s automobiles. The two-seater, over $26,000 (est.), will exceed 85 mph, and do 0-60 in under 10 seconds. Initial distribution is California only. For video, visit www.aptera.com

9 subcategories, including industry, power utilities, and financing, are on the U.S. Department of Energy page on energy efficiency. Under Industry, link to the Energy Efficiency & Renewable Energy’s Industrial Technologies, Manufacturing Energy Consumption Survey, and Energy Information Administration. www.doe.gov/energyefficiency

All 6 greenhouse gases are traded at the Chicago Climate Exchange. CCX says it is North America’s only and the world’s first global marketplace for integrating voluntary legally binding emissions reductions with emissions trading and offsets. It had record trading through February 2008, exceeding the mid-2007 pace. www.chicagoclimatex.com