The cost of a system is a function of several factors, including:
- The size of the house in terms of demand on the system
- The existing system, its condition and its relation to the potential new system. For example is the existing system located near to the most suitable roof location for thepanels.
- Whether the new system is a retro-fit or utilises a new cylinder
- The ease of installation
- Whether the new system utilises panels or evacuated tubes.
As a general guide, if we assume that a new cylinder is to be deployed and that typical conditions prevail then the following table shows the costs for different sized systems.
The primary determinant of the cost savings with these assumptions fixed is the assumed rate of future fossil fuel cost inflation. The following charts show the cumulative savings to be obtained by the system over its life for three different assumptions. There are additional financial benefits that could be taken into account, such as the reduction in boiler usage that will reduce maintenance costs and increase the boiler’s life. However, we believe that these are too difficult to quantify and to be conservative have omitted their value from the analysis.
| Number of People | Number of Baths | Collector Area m2 | Cylinder Size lt | Total Cost Including VAT |
| 2 | 1 | 2.2 | 130 | £3,360 |
| 2-3 | 1 | 2.5 | 150 | £3,428 |
| 3-4 | 2 | 3.3 | 180 | £4,053 |
| 4-5 | 2 | 4.4 | 250 | £4,421 |
| 5-6 | 3 | 5.0 | 250 | £4,830 |
| 6+ | 3 | 6.6 | 250 | £5,145 |
The price shown covers all potential costs and services. The only exception to this is the cost of any planning application (currently £135), should this be necessary. If any planning approvals are required we would handle all the necessary paperwork.
We generally ask for a deposit of £500 to confirm the order. This is refundable in full at any time within 7 days of payment. The final balance is payable in full on completion.