| 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: 13.05
At $0.15 per kWh = $1.96 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 | 4,716 | 0.158 | 742.71 | 742.71 |
| 2 | 0.98 | 4,668 | 0.165 | 770.22 | 1,512.93 |
| 3 | 0.97 | 4,620 | 0.173 | 797.01 | 2,309.94 |
| 4 | 0.96 | 4,573 | 0.180 | 823.09 | 3,133.03 |
| 5 | 0.95 | 4,525 | 0.188 | 848.45 | 3,981.48 |
| 6 | 0.94 | 4,477 | 0.195 | 873.10 | 4,854.59 |
| 7 | 0.93 | 4,430 | 0.203 | 897.04 | 5,751.62 |
| 8 | 0.92 | 4,382 | 0.210 | 920.26 | 6,671.88 |
| 9 | 0.91 | 4,335 | 0.218 | 942.77 | 7,614.65 |
| 10 | 0.9 | 4,287 | 0.225 | 964.56 | 8,579.21 |
| 11 | 0.89 | 4,239 | 0.233 | 985.64 | 9,564.84 |
| 12 | 0.88 | 4,192 | 0.240 | 1,006.00 | 10,570.84 |
| 13 | 0.87 | 4,144 | 0.248 | 1,025.65 | 11,596.49 |
| 14 | 0.86 | 4,096 | 0.255 | 1,044.58 | 12,641.07 |
| 15 | 0.85 | 4,049 | 0.263 | 1,062.80 | 13,703.87 |
| 16 | 0.84 | 4,001 | 0.270 | 1,080.31 | 14,784.18 |
| 17 | 0.83 | 3,953 | 0.278 | 1,097.10 | 15,881.27 |
| 18 | 0.82 | 3,906 | 0.285 | 1,113.17 | 16,994.44 |
| 19 | 0.81 | 3,858 | 0.293 | 1,128.53 | 18,122.98 |
| 20 | 0.8 | 3,811 | 0.300 | 1,143.18 | 19,266.16 |