The “South East Wedge” development is situated at Shawfair, on the outskirts of Edinburgh, and is to develop circa 4000 homes, 63,200m2 of commercial land, 72,800m2 of industrial land and 7,800m2 of new civic space over a period of 18 years. Synergie Environ were commissioned to conduct a high level review of options to develop a decentralised low carbon heat supply to the (Shawfair) development.
The review focused on assessing the available energy resources on or adjacent to the development site, their fit with the energy needs of the proposed development, and their commercial deliverability, costs and carbon impact. Options investigated included anaerobic digestion, biomass, energy-from waste (EfW), and heat recovery from local mine water and sewage.
It was identified that the estimated total peak heat load for the entire development will be in the region of 84MW, with residential elements developed at a steady rate of 3-4MW per annum. A number of potential heat resources were assessed including the old Monktonhall mine workings, a planned new EfW and anaerobic digestion facilities at Millerhill, and sewer flows (heat recovery from effluent).