Solar Panel Performance
Solar Facts:
- The UK receives 60% of the solar energy compared with the equator.
- This is equivalent to 1000 power stations.
- An average property uses 3000kwh to heat their domestic water each year.
- This equates to 8.22kwh requirement each day.
- Each square metre of the UK (at 30deg angle) receives 900 degC 1200kwh of heat each year.
Below is a chart showing the heating capacity of typical Solar panels.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
kwh /m2 Day 0.64 1.17 1.94 3.32 4.17 5.00 4.44 3.61 2.78 1.67 0.78 0.47
20 Tube Panel 1.15 2.11 3.49 5.80 7.51 9.00 7.99 6.50 5.00 3.01 1.41 0.85
30 Tube Panel 1.73 3.17 5.24 8.70 11.30 13.50 12.00 9.75 7.50 4.51 2.12 1.23
20 Tube Panel = 2.25m2 / 30 tube Panel = 3.38m2 / Efficiency = 70 to 80%
The figures in the table are the average daily kwh of heat generated for each respective month.
Example:- 20 Tube Panel equates to an average total of 4.48kwh of heat each day throughout the year thus reducing your annual hot water heating bill by at least 50%.
Total average yearly output for a 2.25m Solar Panel = 1635kwh
