Buy at Amazon (Not the same book as PDF)
This PDF on Pelton Micro Hydro Prototype Design describes work to date on a modular design for a Pelton micro-hydro generating set with an electrical output up to of the order of 5 kVA
This was designed by an aid worker working is rural Papua New Guinea.
This Pelton Micro Hydro Prototype does not generate a huge amount of electricity.
However the amount it does create is not insignificant – especially when you consider the costs and the relative ease of construction.
I like designs and information from missionaries and aid workers.
If it can work in a third world location build with local scrap and maintained irregularly by unskilled workers then it is perfect for disaster use.
A Pelton Micro Hydro Prototype Design