Biomass Boiler Derbyshire installation
|7 year Return||£51,100|
|Payback||5 years (20% return)|
|Cost||£30,000 - £50,000|
|Bill Saving||£900 p.a.|
Return is calculated using combined bill savings and subsidy earnings. Bill savings are calculated using estimated energy usage and either the electricity price at the time of installation (8 November, 2014) or, for our heating products, the existing fuel type available to the property.
The owner of this off-grid cottage renovation was looking for a sustainable solution for heating and generating power for the property which would reduce his long term running costs. Having been let down by a previous renewable energy company he contacted EnergyMyWay for advice and, after an initial consultation, invited us to complete a full review of his renewable energy options.
The property was in the process of significant renovation and extension works and we were able to consider a number of options from the full range of available technologies. Having taken time to review the options and after carrying out a full room by room heat loss calculation, we recommended a 32kW Froling P4 biomass pellet boiler combined with a fully integrated underfloor heating system throughout both floors of the property, as the ideal solution for heating and hot water.
As the property had a large garage we were able to accommodate all the equipment, including the fuel store, into the garage, with enough room left over to still function as a garage. To maximise the remaining space we integrated an ‘on demand’ (combi-style) hot water coil into the buffer tank to avoid the need for a separate hot water cylinder and save space. We also advised the owner on the type of floor construction and coverings which would work best to optimise his underfloor heating system, and worked with his building contractors to ensure integration with the other building works.
We were able to connect a new outbuilding to be used as a gym and hair salon to the biomass heating system via underground insulated heat main pipework and create a separate heating and hot water circuit for the building. We advised on the RHI application and managed the Green Deal Assessment to ensure that the heat demand from both house and outbuildings would be taken into account and included within his RHI payments increasing his annual payments by over £1,000.
In addition, we advised the owner and his architects on the optimum design of the roof construction of the outbuilding, to maximise its generation potential for solar PV, and are now working with the owner to install 10kW of solar PV with a battery storage system to provide free power day and night and to enable full self-reliance even in the event of a power cut.