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13 October, 2006
Small hydro plant designers often choose long penstocks instead of the traditional 'open channel' option, as they can be cheaper, quickly installed, and easier to maintain. However, these longer penstocks are usually affected by waterhammer phenomena, which must be faced with great care and suitable calculation models to verify in a reliable way that the stresses remain in a correct range – as was the case with one small hydro scheme in Italy
Large steps in small hydro
21 July, 2006
The 18th Hidroenergia conference took place in Crieff, Scotland, UK, on 8-9 June. The biennial European event continued its trend for interesting and diverse papers and presentations on the topic of small hydro power, writes Jon Last
01 June, 2006
India is the seventh largest country in the world and the second most populated, with 1.08B (July 2005 estimation) people living in an area of 3.3Mkm2 (CIA Facts). The total electricity generated by India during 2002 was 596,543GWh, consisting of coal (418,079GWh); gas (62,885GWh); hydro (64,104GWh); oil (27,773GWh); nuclear (19,390); biomass (1849GWh); solar (4GWh); and other sources (2459 GWh) (IEA Energy Statistics, 2002).
31 May, 2006
Chile is located in southern South America, bordering the South Pacific ocean, between Argentina and Peru. It has a total land area of 756,950km2 with 748,800km2 land and 8150km2 water, and a population of 15.9M (July 2005 estimation, CIA Facts). The country’s total electricity production is 45,483GWh/yr, consisting of coal - 8661GWh (19%); oil - 486GWh (1%); gas - 11,485GWh (25%); biomass -1664GWh (4%); and hydro - 23,187GWh (51%) (IEA Energy Statistics, 2002).
31 May, 2006
The very geography of Canada has led to the Canadian energy industry’s expertise in the generation and transmission of electricity, in particular hydroelectric power. The paradox of Canada’s vast geography is that it poses an energy supply problem to the 32 million people scattered over 10Mkm2, while at the same time offering a solution to the energy demands of its inhabitants. One of the least densely populated countries in the world, with a rigorous climate and large distances between population centres, Canada has been graced with water, whether falling or running or still water, and thus water-based power ready to meet Canada’s relatively high per capita energy use.
31 May, 2006
Argentina is located in Southern South America, bordering the South Atlantic Ocean, between Chile and Uruguay, with total land area of 2,766,890km2. Total population of Argentina is 39,537,943 (July 2005 est.) (CIA Facts). Total electricity production was 84,539 GWh for the year 2002; consisting of coal 1173GWh, oil 1529GWh, biomass 1261GWh, gas 98,792GWh, nuclear 5821GWh, hydro 35,888GWh, solar 47GWh, and others 73GWh (IEA Energy Statistics, 2002).
Dam regulation case reaches Supreme Court
22 February, 2006
A case between the owner of dams on the Presumpscot river in Maine, US, and the state has reached the Supreme Court.
Turbine programme cut from US budget
07 February, 2006
The US Department of Energy’s (DOE) Advanced Hydropower Turbine Systems (AHTS) programme has been dropped from the President’s FY’07 budget.