Loch investments approached Ecoliving to deliver a communal renewable energy heating system for their new build development at Auchentoshan Terrace, Springburn in Glasgow. The development, built to code 4, consists of 27 one and two bedroom flats which the company rents out. The cost of the heating and hot water is included in the rent tenants pay.
Heating & Hot Water from NIBE Ground Source
The heating system consists of 2 x NIBE ground source heat pumps (each with an output of 40kW) and 3 x 1000 litre cylinders. 12 boreholes, 100m deep into rock under the site deliver the required temperature difference, even in the heart of winter, to facilitate the refrigeration cycle within the heat pumps. This allows the refrigerant to evaporate and then become compressed which increases the temperature. The hot gas heats water to usable temperatures for heating and hot water. There is a primary flow to the under floor heating system in each flat.
Impressive RHI Return on Investment
‘It has been invaluable to be able to rely on Ecoliving’s experience of ground source heat pump installations and we have been delighted with their expert input at each stage. The return on investment with the RHI is really impressive.’
Heinz Borchardt, Project Manager
Cost of Heat pump installation including boreholes:
£125,000
Building heat demand:
83 kW
Energy produced by heat pumps:
194,331 kWhs/year
Anticipated annual RHI payments:
£8,745 / year (194,331 x 4.5p/kWh)
RHI payments until:
2032 (20 years)
Anticipated annual running cost:
£6,050
Anticipated average cost per tenant:
£18.67 per month for heating & hot water
Anticipated annual running cost saving:
£1,700 (compared to gas)
Anticipated annual gain:
£ 1,700 Energy Saving
£ 8,745 Renewable Heat Incentive income
£10,445 Total financial gain per annum
Payback:
12 years (£125,000 ÷ £10,445)
Further benefit after system payback:
£83,560 (more if price of gas rises faster than electricity)
Follow links below for more information on:
Renewable Heat Incentive