Solar Energy Production

The Solyndra “Sunhunter” panels on our roof have been installed in November 2009. Here are the production numbers per year, as reported by the SMA Sunny Beam monitor.

Production of Electricity per Year, in Wh

Year	Production	Total
2020 (Up to and including March)	278.090	21.280.410
2019	2.028.060	21.002.320
2018	2.151.910	18.974.260
2017	1.978.340	16.822.350
2016	1.992.400	14.844.010
2015	2.116.470	12.851.610
2014	2.063.680	10.735.140
2013	2.070.720	8.671.460
2012	2.097.370	6.600.740
2011	2.173.140	4.503.370
2010	2.282.400	2.330.230
2009 (43 days)	47.830	47.830

And here is bit more detail:

Production of Electricity per Month, in Wh

Month	Production	Total
March 2020	178.900	21.280.410
February 2020	62.210	21.101.510
January 2020	36.980	21.039.300
December 2019	34.780	21.002.320
November 2019	61.810	20.967.540
October 2019	99.750	20.905.730
September 2019	185.760	20.805.980
August 2019	270.300	20.620.220
July 2019	284.230	20.349.920
June 2019	298.190	20.065.690
May 2019	269.720	19.767.500
April 2019	241.710	19.497.780
March 2019	133.760	19.256.070
February 2019	110.500	19.122.310
January 2019	37.550	19.011.810
December 2018	32.550	18.974.260
November 2018	68.170	18.941.710
October 2018	152.730	18.873.540
September 2018	208.920	18.720.810
August 2018	259.430	18.511.890
July 2018	344.630	18.252.460
June 2018	274.590	17.907.830
May 2018	314.330	17.633.240
April 2018	208.230	17.318.910
March 2018	132.810	17.110.680
February 2018	122.700	16.977.870
January 2018	32.820	16.855.170
December 2017	19.220	16.822.350
November 2017	54.520	16.803.130
October 2017	110.220	16.748.610
September 2017	183.280	16.638.390
August 2017	237.720	16.455.110
July 2017	285.310	16.217.390
June 2017	303.050	15.932.080
May 2017	282.440	15.629.030
April 2017	219.780	15.346.590
March 2017	169.150	15.126.810
February 2017	59.120	14.957.660
January 2017	54.530	14.898.540
December 2016	42.330	14.844.010
November 2016	55.780	14.801.680
October 2016	116.280	14.745.900
September 2016	209.500	14.629.620
August 2016	257.960	14.420.120
July 2016	281.650	14.162.160
June 2016	231.050	13.880.510
May 2016	284.710	13.649.460
April 2016	216.550	13.364.750
March 2016	156.390	13.148.200
February 2016	91.570	12.991.800
January 2016	48.630	12.900.200
December 2015	40.900	12.851.610
November 2015	52.150	12.810.710
October 2015	111.000	12.758.560
September 2015	183.380	12.647.560
August 2015	268.160	12.464.180
July 2015	280.020	12.196.020
June 2015	330.580	11.916.000
May 2015	294.510	11.585.420
April 2015	268.040	11.290.910
March 2015	154.970	11.022.870
February 2015	89.500	10.867.900
January 2015	43.260	10.778.400
December 2014	24.690	10.735.140
November 2014	64.740	10.710.450
October 2014	109.950	10.645.710
September 2014	198.940	10.535.760
August 2014	239.000	10.336.820
July 2014	267.830	10.097.820
June 2014	305.000	9.829.990
May 2014	273.110	9.524.990
April 2014	245.170	9.251.880
March 2014	205.640	9.006.710
February 2014	82.410	8.801.070
January 2014	47.200	8.718.660
December 2013	52.430	8.671.460
November 2013	44.070	8.619.030
October 2013	124.630	8.574.960
September 2013	199.870	8.450.330
August 2013	278.020	8.250.460
July 2013	333.340	7.972.440
June 2013	284.290	7.639.100
May 2013	247.480	7.354.810
April 2013	237.600	7.107.330
March 2013	151.590	6.869.730
February 2013	72.190	6.718.140
January 2013	45.210	6.645.950
December 2012	30.910	6.600.740
November 2012	53.570	6.569.830
October 2012	127.000	6.516.260
September 2012	214.110	6.389.260
August 2012	291.680	6.175.150
July 2012	288.520	5.883.470
June 2012	273.620	5.594.950
May 2012	298.000	5.321.330
April 2012	201.740	5.023.330
March 2012	176.880	4.821.590
February 2012	98.680	4.644.710
January 2012	42.660	4.546.030
December 2011	33.690	4.503.370
November 2011	70.550	4.469.680
October 2011	147.350	4.399.130
September 2011	202.880	4.251.780
August 2011	231.830	4.048.900
July 2011	260.010	3.817.070
June 2011	284.330	3.557.060
May 2011	332.220	3.272.730
April 2011	284.220	2.940.510
March 2011	213.700	2.656.290
February 2011	64.940	2.442.590
January 2011	47.420	2.377.650
December 2010	26.280	2.330.230
November 2010	39.690	2.303.950
October 2010	142.720	2.264.260
September 2010	198.160	2.121.540
August 2010	245.810	1.923.380
July 2010	355.520	1.677.570
June 2010	364.460	1.322.050
May 2010	295.200	957.590
April 2010	318.520	662.390
March 2010	189.240	343.870
February 2010	66.700	154.630
January 2010	40.100	87.930
December 2009	31.840	47.830
November 2009 (12 days)	15.990	15.990

Note that the official numbers – as measured by the company that manages the electricity distribution network – are somewhat lower (they’re about 1.1% lower, according to my calculations of June 2013).

* * * * *

Additional data: here are the production numbers for the meteorological seasons, i.e. “Spring” = the total production March, April and May, “Summer” = the total production of June, July and August, “Autumn” = the total production of September, October and November, and “Winter” = the total production of December (of the previous year), January and February.

Production of Electricity per Meteorological Season, in Wh

Year	Winter	Spring	Summer	Autumn
2020	133.970	(178.900)	...	...
2019	180.600	645.190	852.720	347.320
2018	174.740	655.370	870.000	429.820
2017	155.910	671.370	826.080	348.020
2016	181.100	657.650	770.660	381.560
2015	157.450	717.520	878.760	346.530
2014	182.040	723.920	811.830	373.630
2013	148.310	636.670	895.650	368.570
2012	175.030	676.620	853.820	394.680
2011	138.640	830.140	776.170	420.780
2010	138.640	802.960	965.790	380.570