| Top 10 production days @ 7.92 kW | ||
|---|---|---|
| kWh | Day | |
| 1 | 54.58 | 2014-04-24 |
| 2 | 53.54 | 2015-05-23 |
| 3 | 52.91 | 2012-04-29 |
| 4 | 52.62 | 2013-04-21 |
| 5 | 52.61 | 2012-04-28 |
| 6 | 52.4 | 2011-03-28 |
| 7 | 52.32 | 2016-05-09 |
| 8 | 52.27 | 2017-05-20 |
| 9 | 52.24 | 2011-03-27 |
| 10 | 52.15 | 2016-04-27 |
Average kWh per day: 14.75
At $0.15 per kWh = $2.21 per day
In 2001 1 kWh cost $0.10
10 years later in 2011, 1 kWh cost $0.15
That is a growth of 50% over 10 years.
In the next 10 years will it go up another 50% ?
2021 will 1 kWh cost $0.225 ?
| Year | efficency | kWh per year | cost | Savings per year | Running Total |
|---|---|---|---|---|---|
| 1 | 0.99 | 5,330 | 0.158 | 839.46 | 839.46 |
| 2 | 0.98 | 5,276 | 0.165 | 870.55 | 1,710.01 |
| 3 | 0.97 | 5,222 | 0.173 | 900.84 | 2,610.85 |
| 4 | 0.96 | 5,168 | 0.180 | 930.31 | 3,541.16 |
| 5 | 0.95 | 5,115 | 0.188 | 958.98 | 4,500.14 |
| 6 | 0.94 | 5,061 | 0.195 | 986.84 | 5,486.98 |
| 7 | 0.93 | 5,007 | 0.203 | 1,013.89 | 6,500.88 |
| 8 | 0.92 | 4,953 | 0.210 | 1,040.14 | 7,541.02 |
| 9 | 0.91 | 4,899 | 0.218 | 1,065.58 | 8,606.60 |
| 10 | 0.9 | 4,845 | 0.225 | 1,090.21 | 9,696.81 |
| 11 | 0.89 | 4,792 | 0.233 | 1,114.03 | 10,810.84 |
| 12 | 0.88 | 4,738 | 0.240 | 1,137.05 | 11,947.89 |
| 13 | 0.87 | 4,684 | 0.248 | 1,159.26 | 13,107.14 |
| 14 | 0.86 | 4,630 | 0.255 | 1,180.66 | 14,287.80 |
| 15 | 0.85 | 4,576 | 0.263 | 1,201.25 | 15,489.05 |
| 16 | 0.84 | 4,522 | 0.270 | 1,221.03 | 16,710.08 |
| 17 | 0.83 | 4,469 | 0.278 | 1,240.01 | 17,950.10 |
| 18 | 0.82 | 4,415 | 0.285 | 1,258.18 | 19,208.28 |
| 19 | 0.81 | 4,361 | 0.293 | 1,275.54 | 20,483.82 |
| 20 | 0.8 | 4,307 | 0.300 | 1,292.10 | 21,775.92 |