2014 January
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Archive for January, 2014

Photovoltaic | How Do You Calculate The Annual Output From A Photovoltaic Array?

As an example:If you had 30m2 of photovoltaic panels, mounted at 0 degrees inclination in London, UK, what would the annual output be in kWh?Specs for the PVs: 1 kWp, 8m2 per kWp.You will never be able to calculate this precisely There are too many variables. For instance:The efficiency of the panels, their rated output, whatever degree of fogginess hading there might be, the amount of shading,    .. more …

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Electric Car | Why Blue Ridge Capital Started A Position In Tesla Motors In 3Q13

According to 13Gs Blue Ridge Capital filed last month, the hedge fund disclosed new positions in Zulily (ZU) and PBF Energy (PBF). The filings stated that Blue Ridge currently owns 6.05% in Zulily, with 799,811 shares, and a 7.82% stake in PBF, with 3,095,000 shares.A November 13G filing showed that Blue Ridge increased its position in Avis Budget Group (CAR) and at present owns a 6.17% stake,    .. more …

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Biomass | I Am Doing A Science Fair Project On Plants And I Need Help With An Easy Way To Measure Biomass?

I need to know how to measure the biomass of above-ground plants. I am growing these plants with different African-animal dung. If you have any simple ways so measure biomass or any good websites please let me know! Thank you.Just to add to the other answer, it’s standard to dry plant and soil materials at a temperature of about 105 C (221 F). If you go much higher, you run the risk of burning the    .. more …

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Wind Energy | Blown Away? US Suspends Wind Power Subsidies, For Now

Washington (AFP) – Historic subsidies propping up US wind energy ended on January 1 and Congress refused to renew them, despite supporters arguing that the aid has made renewable power cheaper than coal.The United States has subsidized wind-sourced electricity since 1992 to promotes the use of green energy and crack America’s dependence on the fossil fuels blamed for climate change.Last year,    .. more …

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Sustainable Energy | Does Anyone Know Of A Good Car Donation Charity That Goes Towards Promoting Sustainable Energy?

I live in Minnesota and have looked at options for donating my car which is a 1996 Pontiac Grand Am that still runs good except for the entire muffler/exhaust system came detatched and I am not willing to pay for it to get fixed. I’m having difficulty finding charities online that contribute to sustainable energy or something of the latter.I dont know of any for contributing to sustainable    .. more …

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Electric Car | I Am Considering Buying A Pure Electric Car, But I Have Been Told That They Are Hazardous To The Environment?

I want to buy an electric car – a Nissan Leaf – because I want a car with a minimal environmental impact, but I now hear that electric cars have an even greater negative impact on the environment than a petrol V8. Apparently the damage done by mining the Lithium etc used in the batteries, and the disposal of the old batteries is a huge hazard, and the Carbon impact of manufacturing it is much    .. more …

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What Is Energy | Manilla Mini: What’s The Real Scoop On Energy?

Chances are, you’ve heard or read something about Green Energy. You probably know it’s good for the environment ” but not much else. Here’s the short version of the Green Energy story. Watch the video here >> There are two common types of alternative energy: solar and wind. Solar requires special panels that trap and convert sunlight into usable electricity. Unused electricity can be sold back to    .. more …

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Solar Power | China Pledges Further Support For Solar Industry

(Removes reference to JA Solar Holdings Co Ltd in eighth paragraph)SHANGHAI, Jan 4 (Reuters) – China pledged further support support for its ailing solar power industry on Saturday as the government seeks to revive a sector struggling with overcapacity and falling prices.The State Council, China’s cabinet, said in July that the country aimed to more than quadruple solar power generating capacity    .. more …

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Heat Pump | What Part Of A Heat Pump Furnace Create 3x The Electricity If It Went Wrong?

Heating bills have triple – what could be wrong? Heat pump replaced recently – what else could be problem?Sounds like the heat pump is not running and it’s using the electric auxillary heat strips.Are you using it thrice the usual amount? Bad thermostat or circuit would explain some things.Could be the plelum valve bearing.Maybe the thermostat has been turned up or broke?Powered by Yahoo Answers    .. more …

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