This PDF on Pelton Micro Hydro Prototype Design describes work to date on a modular design for a Pelron 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, but it 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