Solar Pv estimate calculator
This calculator will take you through a process to determine the quantity of solar electricity that you could generate per year and how you could financially benefit from this.
Simply click the next button to the right of this panel to proceed to each of the short steps.
Locating your home
Identifying your home allows us to determine the average annual sunlight your house gets and its suitability for a solar-pv installation.
Simply enter your postcode below to locate your house then once the map has updated click on your roof.
Estimating your energy usage
This information will allow us to more accurately calculate the amount of electricity you can generate and therefore save *.
Roof Area
Roof area can be calculated by multiplying the roof width by depth.
Remember to deduct the area for any windows, chimneys etc.
Roof size in metres squared (m2).
| 12.16 | 15.2 | 21.28 | 24.32 | 30.4 |
| 1.56 | 1.95 | 2.73 | 3.12 | 3.9 |
Output Kilo Watt Peak (KW).
| Roof Direction: | |
| Roof Angle: | |
| Area of Roof Shaded: | |
| Annual Electricity Bill: | |
| Avg Price Per Unit: | |
| Generated Electricity Used: |
Your Estimate
Below is the calculated cost, income and profit for the system you have selected. *
| Installation Cost: | |
| Break Even: |
Savings Annualy
| Electricity Saving: | |
| Feed-In Income: | |
| Carbon Saving: |
Savings Over 25 Years
| Carbon Saving: | |
| Income: | |
| Profit: |
Customised Quote
To receive a customised quote, please fill in the details to the right and click submit.
Please note, all efforts are taken to ensure the privacy and protection of your information and it will only be used for the purpose of refining your estimate.
To be able to calculate your estimate, we have to make several assumptions. Details can be found in our calculator assumptions panel.
Assumptions
To calculate your solar-pv estimate we make several assumptions, including:
- Scheme Period, 25 Years »
- The Feed-In tariff is guaranteed (by the government) to run for 25 years from the registration of the system. All of our 'end to end' calculations are for 25 years.
- Peak Yield, 195 watts »
- Our panels are manufactured to the highest efficiency and build quality. Each new panel is guaranteed to generate 195watts at peak performance.
- Module Surface Area, 1.52 metres squared »
- Each of our modules are manufactured to an exact size of 1.52m2. By multiplying the 'Peak Yeild' and the 'Module Surface Area' together we are able to calculate the overall power of the system (deducting for British weather).
- Feed-In Tariff and Energy Inflation, 3% »
- The feed-in tariff is indexed to the retail price index in the UK. This is currently around 3 percent in the United Kingdom and has averaged at this value for the last twenty years. Therefore we will use 3% in the calculator. We use the same figure of 3 percent for our energy price inflation - although in practice it is extremely difficult to predict this value and the reality could fall either side of the 3% figure (historically it is usually higher).
- Feed-In Tariff (Units Sold), £0.03 »
- This the additional payment received from the energy supplier for any electricity not used in the home that is exported to the grid. This is paid at a flat rate of 3p per kWh.
- UK Yield Factor, 85% »
- We only use the highest quality panels which produce a high yield within the UK climate. The figure of 85 percent is based on the average yield of the panels that we utilize.
- Carbon Emission Saving, 0.544Kg per kwh »
- The amount of carbon that you will save by not using traditional fossil fuel sources is calculated as an average of the amount of energy that our panels produce over a 25 year basis.
