'Off-grid' cellphone towers could save lives
Electricity from rural cellphone towers in poor countries could chill vaccines, saving 5 million lives every year, say Harvey Rubin and Alice Conant.
Electricity from rural cellphone towers in poor countries could chill vaccines, saving 5 million lives every year, say Harvey Rubin and Alice Conant.
Idukki district in Kerala shows that small hydel power plants can be profitable
Although small hydro electric schemes are considered ideal for remote hill villages, planners have overlooked crucial factors and not all villagers are happy
Efforts at realising the vastly untapped potential of hydel power in the country are hampered by lack of finances
Although small hydro projects are expensive, they are clean and renewable sources of energy and there is scope to reduce costs
After neglecting the north east for years, Delhi now feels the need to initiate developmental activities in the region. There is good reason. Indo Chinese ties are improving. Moreover, a sub regional economic grouping comprising India, China, Myanmar
A local deity of villages in Kinnaur district of Himachal Pradesh recently ordained that the construction of a hydroelectric power project should be stopped. Bowing to the divine importunations of
According to the 2001 census, about 43.5% of the households have been provided with electricity connections. This has gone up from 30.5% at the time of the 1991 census. The vast majority of rural population, however, still has no access to electricity and is dependent on kerosene lamps and lanterns. Jan-Mar 2005
<p>With the growing threat of food insecurity and a largely erratic rainfall pattern, Kerala, despite its very high rate of annual precipitation, has embarked on a series of large budget irrigation schemes. However, with the shift in acreage in favour of certain cash crops which demand relatively less moisture, the requirement of water in agriculture may change.
The International Conference for Renewable Energies is to be held in Bonn, Germany. But here is a sector dwarfed by fossil fuels, and although governments can proactively root for renewables, and some have, the options given to developing countries are qu
When the first comprehensive report in years to examine energy use by computer servers was published in February 2007, it was greeted with surprise by industry insiders. Jonathan Koomey, a staff scientist at Lawrence Berkeley National Laboratory in California, found that worldwide power consumption by servers had doubled between 2000 and 2005. "Everyone thought CO2 emissions were a problem for transportation and big energy," says Bill St Arnaud of Canarie, Canada's internet development organisation in Ottawa, Ontario.
The production of clean energy for transportation makes demands on resources that are already scarce. Biofuels can contribute to a solution, but only to a limited extent. (Editorial)
An extensional survey of Thoubal District was conducted during Oct to Mar 2004-2005 to collect the input data for production of various rabi crops. A questionnaire was prepared and farmers were interviewed personally regarding the necessary information. The various agricultural operations were converted in form of energy.
Smallholder agriculture has made an increasing use of subsidized mechanization and energy inputs to reduce short-term risks in semi-arid conditions in north west India. However, geographic patterns of production and scale of mechanization are straining resources and increasing the risk of serious degradation of natural resources. In this paper, the possibility of maximizing the revenue and energy returns in the agricultural sector at village level to fulfil the food, fuel and feed requirements of the village has been attempted.
The present study is comprised of energy value, component energy, total energy content and net annual energy production of 6 years old monoculture plantation stand of Acacia auriculiformis A. Cunn.ex. Benth at Saresar Forest Range situated in the South-East outskirts of Varanasi city. The caloric value and content of different component of sample harvested trees were analyzed.
Located 40 miles east of Yuma, Ariz., is a barren site that may become a landmark for U.S. oil refining - the location of the country's first newly built oil refinery since 1976.
There are 229 identified coal blocks for allocation to specified end users and government companies on display on the website of Ministry of Coal. Till May 2008, as many as 182 coal blocks have been allocated to eligible companies. So far, production has commenced only in 13 blocks.
Waste heat from industrial plants and electricity-generating stations represents a huge amount of lost energy. David Lindley finds out what engineers and regulators need to do to get it back.
Sending an email across the Atlantic Ocean does not burn any jet fuel, but the internet is not without its own, huge carbon footprint.
Various indigenous strains of Saccharomyces isolated from datepalm sap were evaluated for alcohol dehydrogenase enzyme activity, ethanol production and alcohol tolerance limits and compared with standard culture of S. cerevisiae. Alcoholic contents in juice samples fermented with different yeast strains varied considerably as determined by GLC.