Letters / Waste heat
I would like to wholeheartedly agree with Philip Andrews who pointed out (Waste of energy; SN 3/11/14) that the waste-heat from the Gremista power station is not used in the district heating scheme, which is already short of heat and could be extended yet further if this heat were made available.
Not only does use of the power station waste-heat save fuel, it also saves investment in power station electrical capacity – ie. by using the diesel waste-heat to displace expensive electricity heating, less money overall need be invested in generating capacity.
Furthermore, modern diesels are extremely efficient in small sizes and there is a case that a number of small and quiet automatically-controlled diesels could be distributed around the islands close to large buildings and clusters of dwellings.
Again use of the waste heat would reduce the peak demand for electricity and reduce the overall size and cost of electricity generation.
David Andrews (no relation)
Bath
Somerset
Link to comprehensive report on Combined Heat and Power and District Heating, written by the Joint Research Centre, Petten, under contract to European Commission, DG Ener: http://setis.ec.europa.eu/system/files/JRCDistrictheatingandcooling.pdf
Become a supporter of Shetland News
Shetland News is asking its many readers to consider start paying for their dose of the latest local news delivered straight to their PC, tablet or mobile phone.
Journalism comes at a price and because that price is not being paid in today’s rapidly changing media world, most publishers - national and local - struggle financially despite very healthy audience figures.
Most online publishers have started charging for access to their websites, others have chosen a different route. Shetland News currently has over 600 supporters who are all making small voluntary financial contributions. All funds go towards covering our cost and improving the service further.
Your contribution will ensure Shetland News can: -
- Bring you the headlines as they happen;
- Stay editorially independent;
- Give a voice to the community;
- Grow site traffic further;
- Research and publish more in-depth news, including more Shetland Lives features.
If you appreciate what we do and feel strongly about impartial local journalism, then please become a supporter of Shetland News by either making a single payment or monthly subscription.
Support us from as little as £3 per month – it only takes a minute to sign up. Thank you.