| 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: 13.19
At $0.15 per kWh = $1.98 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 | 4,766 | 0.158 | 750.68 | 750.68 |
| 2 | 0.98 | 4,718 | 0.165 | 778.48 | 1,529.16 |
| 3 | 0.97 | 4,670 | 0.173 | 805.56 | 2,334.72 |
| 4 | 0.96 | 4,622 | 0.180 | 831.92 | 3,166.64 |
| 5 | 0.95 | 4,574 | 0.188 | 857.56 | 4,024.19 |
| 6 | 0.94 | 4,525 | 0.195 | 882.47 | 4,906.67 |
| 7 | 0.93 | 4,477 | 0.203 | 906.66 | 5,813.33 |
| 8 | 0.92 | 4,429 | 0.210 | 930.13 | 6,743.46 |
| 9 | 0.91 | 4,381 | 0.218 | 952.88 | 7,696.34 |
| 10 | 0.9 | 4,333 | 0.225 | 974.91 | 8,671.25 |
| 11 | 0.89 | 4,285 | 0.233 | 996.21 | 9,667.46 |
| 12 | 0.88 | 4,237 | 0.240 | 1,016.79 | 10,684.25 |
| 13 | 0.87 | 4,188 | 0.248 | 1,036.65 | 11,720.90 |
| 14 | 0.86 | 4,140 | 0.255 | 1,055.79 | 12,776.68 |
| 15 | 0.85 | 4,092 | 0.263 | 1,074.20 | 13,850.88 |
| 16 | 0.84 | 4,044 | 0.270 | 1,091.89 | 14,942.78 |
| 17 | 0.83 | 3,996 | 0.278 | 1,108.87 | 16,051.64 |
| 18 | 0.82 | 3,948 | 0.285 | 1,125.11 | 17,176.76 |
| 19 | 0.81 | 3,900 | 0.293 | 1,140.64 | 18,317.40 |
| 20 | 0.8 | 3,851 | 0.300 | 1,155.44 | 19,472.84 |