This project will be India’s and indeed Asia’s first at commercial scale and will deliver important economic and environmental benefits for the region, as well as paving the way for similar developments within Gujarat
Pumped Hydro: Is it TOO Green? | PeteSinger - 1 views
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In the latest Electric Power Research Institute Journal, an article titled "Hydropower Reservoirs: A Question of Emissions" notes that reservoirs used for hydropower and for pumped-hydro energy storage are not necessarily as green as you might imagine. Or rather, they might be too green: carbon-rich organic material that accumulates on the reservoir floor can be the source of carbon emissions. A recent study of the 90-year-old Lake Wohlen, in Switzerland, for example, found high emissions of methane, as recently reported in the journal Environmental Science and Technology, in an article titled: "Extreme Methane Emissions from a Swiss Hydropower Reservoir: Contribution from Bubbling Sediments."
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Applies to both hydro reservoirs (i.e. water pooled behind a dam) and hydro pools filled with pumped-hydro. Note that the latter, pumped-hydro, already carries the emissions profile of the energy used to power the turbine pumping the water against gravity, scaled up for conversion efficiency losses.
The Oil Drum | A North American Energy Plan for 2030: Hydro-electricity the forgotten r... - 0 views
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Hydro energy’s potential may be overlooked because; it is “old” renewable energy, or because like nuclear energy, some hydro electric schemes have been criticized by environmental groups, but most importantly a perception by many, that most hydro electric potential in North America has already been exploited. Hydro electricity deserves more scrutiny because; 1) North America has significant undeveloped potential, 2) the technology is well understood, although technical improvements continue to be made, especially for low head and small hydro, 3) hydro has a very high energy return on energy investment (ERoEI), 4) additional hydro can enable more wind and solar energy capacity to be absorbed by the grid, 5) hydro potential is more geographically dispersed than wind and solar, and finally, 6) the cost of developing additional hydro capacity is moderately low and has very low technical and financial risk.
Hydropower map - England and Wales - 0 views
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We have produced a report and map showing the hydropower opportunities in England and Wales and the environmental sensitivities associated with exploiting them.
Environmental Capital - WSJ.com : When Cheap Housing Isn't: How Transportation Changes ... - 0 views
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Ballooning gasoline prices aren’t just changing how people drive—they may soon change where people live. With gas stuck above $3.00 a gallon, those cheaper houses in the suburbs can be a money-losing proposition in the end.
Techno-economic and environmental evaluation of passive cooled photovoltaic systems in ... - 1 views
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Passive cooling was enabled by application of perforated aluminium fins fixed on the back side surface of the PV panel.
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can increase power yield of the PV system by 5% on at maximum
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