Search results for kilowatt hour:
Oil, gas, propane? Penn State site compares home heating options
Oct 09, 2008 |
3.5 / 5 (4) |
0
(PhysOrg.com) -- That nip in the air means fall is here, and many homeowners are facing a drastically more expensive home-heating season. An energy specialist in Penn State's College of Agricultural Sciences says it's not ...
EarthTalk: Are hybrid cars really better for the environment?
Mar 30, 2009 |
4.6 / 5 (32) |
16
Dear EarthTalk: If you have an electric or plug-in hybrid car, you're paying for electricity rather than gasoline all or most of the time. How does that cost compare to a gas-powered car's cost-per-mile? And since the electricity ...
'Fish technology' draws renewable energy from slow water currents
Nov 20, 2008 |
4.5 / 5 (42) |
5
(PhysOrg.com) -- Slow-moving ocean and river currents could be a new, reliable and affordable alternative energy source. A University of Michigan engineer has made a machine that works like a fish to turn ...
Weighing the financial risks of nuclear power
Apr 03, 2007 |
4.8 / 5 (4) |
0
Enticed by the gleam of government subsidies, many companies are rushing to invest in nuclear power, expecting that new technology and safer reactors will make them as good an investment as other types of power plants.
There's money to be saved in solar
Feb 17, 2009 |
3.4 / 5 (7) |
2
A series of solar panels on the roof converts the sun's rays to electricity, the electricity then flows through cables to the circuit breaker, where it's consumed in the building. The result -- a reduction in energy costs.
Report examines hidden costs of energy production and use
Oct 19, 2009 |
2.5 / 5 (4) |
1
A new report from the National Research Council examines and, when possible, estimates "hidden" costs of energy production and use -- such as the damage air pollution imposes on human health -- that are not reflected in market ...
New type of home furnace to be introduced
Nov 14, 2006 |
4.6 / 5 (74) |
0
There's a new fad starting, which might eventually prove to be more a revolution than a fad: an efficient furnace that also generates electricity.
Winds of change
Sep 11, 2009 |
3 / 5 (5) |
1
Wind farms can be self-sustaining, concluded two Northeastern finance professors in a recent journal article. A few measures to increase productivity and decrease equipment costs could reduce the current dependence ...
Quiet wind turbine could provide up to 30% of a home's power
Oct 31, 2008 |
4.2 / 5 (95) |
27
(PhysOrg.com) -- A quiet wind turbine developed in Scotland is now available in the US and Canada. Its developers say that the roof-based turbine can provide significant power for homes and commercial buildings ...
Cheaper materials could be key to low-cost solar cells
Nanotechnology / Nanomaterials
Feb 18, 2009 |
4.1 / 5 (11) |
5
(PhysOrg.com) -- Unconventional solar cell materials that are as abundant but much less costly than silicon and other semiconductors in use today could substantially reduce the cost of solar photovoltaics, ...
Artificial noise saves energy
Jun 24, 2009 |
2.5 / 5 (2) |
0
Against the background of climate change, how can xDSL systems function more energy-efficiently and cost-effectively? Scientists are providing a solution combining existing methods which network providers ...
Put the Trees in the Ground: A solution for the global carbon dioxide problem?
May 13, 2008 |
2.8 / 5 (6) |
6
Of the current global environmental problems, the excessive release of carbon dioxide from the combustion of fossil fuels and the related global warming is one of the most pressing.
Report: Idle appliances are power-suckers
Apr 25, 2008 |
3.6 / 5 (10) |
0
Electrical appliances that use electricity even when not working are a major energy consumer, a Canadian federal study showed.
Old carpet to fuel Shaw plant
Jun 12, 2009 |
2 / 5 (4) |
1
That old, weathered carpet torn out from your living room could now be used to make new carpet.
Plasma Rocket Could Travel to Mars in 39 Days
Space & Earth / Space Exploration
Oct 06, 2009 |
4.8 / 5 (122) |
72
(PhysOrg.com) -- Last Wednesday, the Ad Astra Rocket Company tested what is currently the most powerful plasma rocket in the world. As the Webster, Texas, company announced, the VASIMR VX-200 engine ran at ...
