Here are the latest statistics for the generation from our solar panels on the CityWorks building in Gloucester.
Over the end of 2014 and the start of 2015 we had a problem with one of our inverters. R-ECO engineers came to have a look, but before they performed any intervention the inverter seemed to correct itself and generation has been back to normal since 28 February 2015. However, we will keep a close eye on the inverter for the next few weeks.
The inverter issue explains why 2015 generation is comparatively low compared with previous years.
Graph 1. Average daily output – with the 2015 production in orange
Graph 2. Monthly output displayed against the average of what we would expect (the green line).
Table 1. The numbers.
|Month 2015||Daily Average kWh||% of expected||Cumulative tonnes of CO2e saved||Month 2014||Daily Average kWh||% of expected||Cumulative tonnes of CO2e saved||Month 2013||Daily Average kWh||% of expected||Cumulative tonnes of CO2e saved|
For a more uncluttered view we have compared the generation so far for 2015 compared to the mean average for previous years.
Graph 3. Percentage of profile compared to mean average for the previous years.
Graph 4. Inverter readings. You can see the previous large problem which was caused by the squirrel damage. For the moment the inverters have gone back to normal without intervention, but we will keep a careful eye on them.