2009 Solar Data Home Page

When you click on any of the buttons to the left you will see a day by day spreadsheet of each month's solar power generation. With each sheet you will be able to see the data in a graph format.

Note that the bar graphs illustrate the total power used by the house. The yellow part of the bar indicates the amount of power generated by the solar array.

Furthermore, if the bar descends below the bottom of the graph then for that day more power was produced than was used. The reading on our house meter will be less than the day before. This will occur in the summer time when we are not using air conditioning.

Below see the year to date at a glance. Gen means power generated by solar. Grid means power used from the grid. And % Gen is the electricity generated each month as a percent of the total monthly electrical power usage.

We have also added other yearly charts and graphs for the analysis of monthly peak power and array efficiency.

 

Yearly 2009 totals and other stats:
	yearly solar generation efficiency					4.2	wh/min/kW
total solar generation per kW of collector						1129.8	kWh/kW
average solar power generation per day						4.6	kWh/day
		total power generation				1694.7	kWh
		total grid power used				3347.5	kWh
	Total power sent back to grid					285	kWh
	percentage of total power generated					33.6%
House total electrical power consumption						5042.2	kWh
				total gas used		2470	cubic meters
		yearly average gas usage / day				6.77	cubic meters
	average gas usage / day for heating					7.37	cubic meters
total yearly power consumption from all sources						30.62	mWh
	house efficiency - cm used per HDD					0.51	cubic meters

 

Year 2009 Monthly kWh Analysis

	Month	Gen	Grid	% Gen
	January	89.4	651.3	12.1
	February	114.6	440.8	20.6
	March	167.2	332.2	33.5
	April	175.9	156.1	53.0
	May	215.9	76.7	73.8
	June	187.3	89.5	67.7
	July	173.6	104.0	62.5
	August	176.7	247.8	41.6
	September	162.3	150.1	52.0
	October	74.3	296.1	20.1
	November	92.5	291.9	24.1
	December	65.0	511.1	11.3
	Total:	1694.7	3347.5	33.6%

 

Year 2009 Monthly Peak Watt Analysis

 

		Minimum	Maximum	Average	Median	Std Deviation
	Jan-09	22	1360	856	1142	467
	Feb-09	77	1542	1118	1237	383
	Mar-09	304	1644	1173	1223	310
	Apr-09	188	1617	1165	1228	323
	May-09	508	1656	1209	1213	265
	Jun-09	367	1529	1112	1116	255
	Jul-09	636	1487	1200	1223	204
	Aug-09	810	1647	1215	1238	199
	Sep-09	609	1603	1195	1106	206
	Oct-09	114	1496	872	854	454
	Nov-09	87	1531	1018	1139	411
	Dec-09	77	1426	822	1015	488

Monthly 2009 Efficiency Analysis

 

			Minimum	Maximum	Average	Median	Std Dev
		Jan-09	0.0	7.9	3.4	2.3	2.6
		Feb-09	0.0	7.8	4.3	4.8	2.7
		Mar-09	0.5	7.8	5.0	5.7	2.5
		Apr-09	0.2	8.1	4.8	5.5	2.5
		May-09	0.9	7.7	5.3	5.9	1.9
		Jun-09	1.1	6.7	4.5	5.2	1.8
		Jul-09	1.4	6.5	4.1	4.1	1.5
		Aug-09	2.2	6.5	4.6	4.8	1.3
		Sep-09	1.3	6.4	4.8	5.2	1.5
		Oct-09	0.3	5.5	2.5	2.1	1.7
		Nov-09	0.1	7.0	3.5	3.6	2.2
		Dec-09	0.1	7.0	2.6	2.2	2.3