Other steps include adding wind and solar energy systems and planting vegetable gardens.

VOA: special.2011.07.08

Others carried out energy studies of city school buildings to make sure the equipment and systems work effectively.

VOA: special.2009.09.04

Interest is also growing in energy management systems for the home and safe driving technologies for the car.

VOA: special.2010.01.08

So everything from creating solar hot-water systems on our rooftops to making our buildings much more energy efficient."

VOA: special.2011.07.08

Workers will also add energy efficient lights and improved building control systems.

VOA: special.2009.05.22

Eighty billion dollars of that total was to be pumped into the U.S.economy to promote development of renewable energy, urban mass transit, high-speed rail systems and clean energy jobs.

VOA: standard.2010.02.25

"Someone could attack the industrial control systems that control all the valves, all the distribution systems, and are used to turn on and off various aspects involved with energy and the electrical power grid and oil and gas distribution networks,".

VOA: standard.2009.08.11