A Short Questionnaire



We need as much background information about your project as possible, so that we can advise you on legal, financial, engineering and environmental matters. The enormous variety of schemes and the budgets means that there is seldom only one possible solution.

  1. Are you enquiring as an individual domestic user, a consultant or a company engaged in equipment sales?

  2. Are you a site owner who is investigating a specific project, and are there any disputes or potential disputes with your neighbours?

  3. Are you looking for information, design and/or a quotation for suitable equipment or a “turnkey” project?

  4. What is your rough time scale for this project, bearing in mind that most civil works can only be carried out in summer?

  5. What is your budget per kW of capacity or what do you expect to spend in relation to the annual return? (price/earnings ratio)

  6. Are there any specific environmental considerations relating to migratory fish, conservation or areas of special scientific interest?

  7. Would you describe yourself as ‘hands on’ ‘keen to learn’ or ‘hands off’?



  1. The name of the river or stream identifying your site with a map reference, post code or satellite image
  2. A general site description including features such as waterfalls, weirs or sluices is often helpful.
  3. A large scale map, preferably with contour lines should be supplied for a high head site and a plan or sketch and photographs would be appropriate for a low head site, together with a few photographs, showing on the plan where they were taken.
  4. Power and its end use may be for mechanical purposes i.e. water pumping, milling and driving a heat pump or an electrical generator or a combination of both. State what loads you currently use and when. Current usage and future power requirements should be given if possible.
  5. The head is the distance between the normal water level at the intake point and the normal water level at the outlet point. An initial estimate of the difference in level across your land will often suffice.

The water-flow in litres or cubic metres per second is required throughout the year in order to calculate the power available, as seasonal variations in flow can be considerable. The more measurements taken over a period of time, the easier it is to select the most suitable water turbine for your site. A ‘Flow Duration Curve’ showing the number of days per year expressed as a % when a particular flow is exceeded may be available from the ‘River Authorities’.