This afternoon I visited a site in Devon England, on the land of a friend of 
mine, with an old mine leat. We measured the flow as 20 litres/sec and the 
local river is about 12m below the leat.

I calculate a theoretical 2 kW maximum available (assuming no losses).

Could you please advise the type of installation that we should consider to 
generate non-grid connected power. The most obvious load is a domestic cooker 
of the AGA type which is an electric storage type of cooker with massive 
thermal capacity. 

Is it possible to locate a turbine/generator on the leat at the top of the 
hill - i.e. discharging through a filled pipe to the river (suction mode ??)

The owner would like to use this site as an opportunity to learn about 
microhydro - is this a good application for a pump to be run as a generator ?

Many thanks in advance for your comments.

Perran Newman


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