| 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: 17.37
At $0.15 per kWh = $2.61 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 | 6,277 | 0.158 | 988.57 | 988.57 |
| 2 | 0.98 | 6,213 | 0.165 | 1,025.19 | 2,013.76 |
| 3 | 0.97 | 6,150 | 0.173 | 1,060.85 | 3,074.61 |
| 4 | 0.96 | 6,086 | 0.180 | 1,095.56 | 4,170.17 |
| 5 | 0.95 | 6,023 | 0.188 | 1,129.32 | 5,299.49 |
| 6 | 0.94 | 5,960 | 0.195 | 1,162.13 | 6,461.62 |
| 7 | 0.93 | 5,896 | 0.203 | 1,193.99 | 7,655.61 |
| 8 | 0.92 | 5,833 | 0.210 | 1,224.90 | 8,880.51 |
| 9 | 0.91 | 5,769 | 0.218 | 1,254.85 | 10,135.36 |
| 10 | 0.9 | 5,706 | 0.225 | 1,283.86 | 11,419.22 |
| 11 | 0.89 | 5,643 | 0.233 | 1,311.91 | 12,731.14 |
| 12 | 0.88 | 5,579 | 0.240 | 1,339.02 | 14,070.16 |
| 13 | 0.87 | 5,516 | 0.248 | 1,365.17 | 15,435.33 |
| 14 | 0.86 | 5,452 | 0.255 | 1,390.37 | 16,825.70 |
| 15 | 0.85 | 5,389 | 0.263 | 1,414.62 | 18,240.32 |
| 16 | 0.84 | 5,326 | 0.270 | 1,437.92 | 19,678.25 |
| 17 | 0.83 | 5,262 | 0.278 | 1,460.27 | 21,138.52 |
| 18 | 0.82 | 5,199 | 0.285 | 1,481.67 | 22,620.19 |
| 19 | 0.81 | 5,135 | 0.293 | 1,502.12 | 24,122.31 |
| 20 | 0.8 | 5,072 | 0.300 | 1,521.61 | 25,643.92 |