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The delay of the domestic portion of the renewable heat incentive (RHI) to summer 2013 may have been disappointing for some customers looking for this as a call to action to upgrade their ageing heating systems. However, with oil prices continuing to rise, increasingly the financial argument for upgrading to air source heat pumps already stands firmly on its own two feet without the need for a motivational incentive.
What we now have is an indication of ongoing support for domestic renewable heat in the shape of the Renewable Heat Premium Payment (RHPP) phase 2 and without doubt the talk from Climate Change minister Greg Barker and down through his department (I meet with his officials quite regularly) is that plans for a domestic RHI for air source heat pumps are firmly on the agenda and progressing. In the meantime we have the RHPP which in the case of air source heat pumps equates to a one off payment of £850.
Nice to have if it's being offered, but for homeowners heating their property with oil or LPG, the savings and benefits over their existing system should already be significantly attractive enough to make the upgrade very worthwhile anyway.
Let’s assume for a moment that your oil boiler is nearing the end of its life and will need replacing in the next few years. Recent analysis we've carried out shows the "payback" on installing an air source heat pump in an existing property can now be as little as 6 years - and that's without taking into account any possible future RHI income or increases in oil prices!
Over an old, inefficient oil boiler: £1,230/ year
Over a newer, more efficient oil boiler: £774/year
The approximate total replacement cost of the oil boiler with an air source heat pump is around £8,500, including 5% VAT, installation of the heat pump and a new domestic hot water cylinder.
Factoring in that if you were to replace your old oil boiler with a new one this would cost around £3,000 anyway, plus the benefit of an £850 RHPP grant. So the additional cost to you is only £4,650.
So here are your options:
1. Invest an extra £4,650 now, save yourself (at today’s oil prices) £774 year, every year for the next 20 years; that’s effectively a 17% annual return on your investment
2. Don’t invest the extra £4,650 and install a new oil boiler instead. You’ll save a bit on oil bills in the short term, but as oil prices rise, watch your annual savings diminish and still have high heating bills every year. And that’s before we start talking about the drawbacks of bulk fuel purchasing, spot energy prices and problems of oil theft.
It's clear then that in the right circumstances householders don't need the RHI to make installing an air source heat pump stack up. Unlike solar PV, you will use all the energy you generate to make real savings against your ever increasing fuel bills. At the end of the day, this is really what renewables are all about, incentive or not!
About the author: Chris Davis is Business Development Director for Dimplex Renewables.
Our expert design consultants can advise on this specialist work by calling them directly on 01666 501580
For any queries or a free quote regarding renewable energy domestic or commercial, replacing an existing inefficient fossil fuel system or as part of a new build project call us now on 01666 501580 or submit your query in our contact us page or in the form above and we’ll be happy to contact you to discuss your requirements.