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Map Study Service

In order to assess the scale of any possible potential at your site MicroHydro can provide you with a Map Survey and estimation.  This study will provide an estimate of the energy that could realistically be produced from the resource, and the expected scale of investment that would be required to realise it.

In order to conduct this study we require map coordinates of the location of interest.  All information received will be treated with strictest confidence and will not be revealed to any third parties without prior consent.  These coordinates will allow us to examine the catchment and it's characteristics, with particular reference to the estimated annual rainfall and evapotranspiration. 

While it is possible to estimate the static head and gradient across a particular location from the Ordnance Survey maps, this method could prove inaccurate for smaller schemes.  It would minimise such inaccuracies if you could provide an estimate of the static head and gradient across the site of interest.

There are many factors that impact on the potential to generate electricity from a particular river resource, and it is hoped that this service will provide a useful starting point in examining that potential.

Site Survey Application Form

Please use the form below for your Site Survey Enquiry:

You must enter your name

You must enter your email address.

You must enter a rivername

You must enter townland.

You must enter county.

You must enter either ITN Coordinates or Irish Grid (LEN)


Are you sure about your calculations?

How to work out your Site CoordinatesGrid Reference

In order to conduct our Map Survey we require the coordinates of the approximate location for your weir, or abstraction point.  If there is not an existing weir structure in place then the coordinates for the general area of the river or stream will suffice.

There are numerous coordinate systems that are used in the Republic of Ireland, and we would appreciate if you supplied your coordinates in either the Irish Transverse Mercator system (ITM), or the Irish National Grid system.  If you are using any other coordinate system please include the type.  Including the stream name and townland should avoid  any confusion.

The ITM coordinates are used on the Ordnance Survey of Ireland Mapviewer website, and this would probably be the easiest way to to work out the coordinates of the site that is of interest to you.

The Irish National Grid (LEN) coordinates can be worked out from the popular Discovery Series of Ordnance Survey Maps.  On every map there is a description of how to create a LEN coordinate for any location on the map.   

Measuring the available head

The amount of electricity that can be produced is directly proportional to the head that is available at the site.  It is also critical that the gradient across the site is sufficient to minimise expensive civil engineering works for head races or long runs of large bore penstock..  At MicroHydro we can recognise such sites from the mapping data, and our Map Survey we assist in avoiding expense on unsuitable sites.

In order to determine how much electricity might be generated at your site it is necessary to know how much head is available across the proposed site.  For high head sites we can estimate the available head on your site from the mapping data, but for low head sites we require that you provide an estimate of the available head.  Obviously, the higher degree of accuracy the better, but we can provide an estimate of the electrical potential per meter head so that you can then determine for yourself if it might be worth requesting an initial consultation and site visit where a more accurate assessment can be made.

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Address: Annacarney, Valleymount, Co. Wicklow, Ireland
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