September 2015 – Solar Statistics

Here are the latest statistics for the generation from our solar panels on the CityWorks building in Gloucester.

The good news is that the minor inverter issues we noticed in January have not resurfaced, although we will be watching carefully again this winter.

We are pleased that we can report that overall the production for 2015 has stayed above expectations, and we had the best June generation since the panels were installed.

Graph 1.  Average daily output – with the 2015 production in orange

GRC Daily Average

Graph 2. Monthly output displayed against the average of what we would expect (the green line).

GRC - 5 of profile vs average to 2014

 

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
January 29.68 79% 53.4 January 30.06 80% 35.4 January 37.05 98% 17.5
February 55.07 89% 54.0 February 72.83 118% 36.2 February 55.15 89% 18.1
March 114.48 109% 55.6 March 124.15 118% 38.0 March 85.81 82% 19.4
April 194.52 127% 58.2 April 130.7 86% 39.8 April 152.14 100% 21.4
May 176.10 108% 60.7 May 156.0 95% 41.9 May 176.24 108% 23.8
June 203.17 117% 63.4 June 196.53 113% 44.5 June 188.53 109% 26.3
July 175.46 109% 65.8 July 198.13 124% 47.2 July 222.80 139% 29.4
August 140.55 101% 67.8 August 153.93 111% 49.3 August 161.86 116% 31.8
September - - - September 127.93 109% 51.0 September 109.18 93% 33.2
October - - - October 70.12 91% 52.0 October 74.08 96% 34.2
November - - - November 41.50 88% 52.6 November 34.48 73% 34.7
December - - - December 27.68 87% 52.8 December 21.46 67% 35.0

 

Graph 4. Inverter readings. You can see the previous large problem which was caused by the squirrel damage and the unidentified problem over the 2014/2015 winter. Since February 2015 the inverters have not experienced any problems.

inverter readings

 

Inverter

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