| 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: 14.2
At $0.15 per kWh = $2.13 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 | 5,131 | 0.158 | 808.16 | 808.16 |
| 2 | 0.98 | 5,079 | 0.165 | 838.09 | 1,646.25 |
| 3 | 0.97 | 5,028 | 0.173 | 867.25 | 2,513.50 |
| 4 | 0.96 | 4,976 | 0.180 | 895.62 | 3,409.12 |
| 5 | 0.95 | 4,924 | 0.188 | 923.22 | 4,332.34 |
| 6 | 0.94 | 4,872 | 0.195 | 950.04 | 5,282.38 |
| 7 | 0.93 | 4,820 | 0.203 | 976.09 | 6,258.47 |
| 8 | 0.92 | 4,768 | 0.210 | 1,001.36 | 7,259.83 |
| 9 | 0.91 | 4,717 | 0.218 | 1,025.85 | 8,285.67 |
| 10 | 0.9 | 4,665 | 0.225 | 1,049.56 | 9,335.23 |
| 11 | 0.89 | 4,613 | 0.233 | 1,072.49 | 10,407.72 |
| 12 | 0.88 | 4,561 | 0.240 | 1,094.65 | 11,502.37 |
| 13 | 0.87 | 4,509 | 0.248 | 1,116.03 | 12,618.40 |
| 14 | 0.86 | 4,457 | 0.255 | 1,136.63 | 13,755.03 |
| 15 | 0.85 | 4,406 | 0.263 | 1,156.46 | 14,911.49 |
| 16 | 0.84 | 4,354 | 0.270 | 1,175.50 | 16,087.00 |
| 17 | 0.83 | 4,302 | 0.278 | 1,193.77 | 17,280.77 |
| 18 | 0.82 | 4,250 | 0.285 | 1,211.27 | 18,492.04 |
| 19 | 0.81 | 4,198 | 0.293 | 1,227.98 | 19,720.02 |
| 20 | 0.8 | 4,146 | 0.300 | 1,243.92 | 20,963.94 |