| 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: 13.48
At $0.15 per kWh = $2.02 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 | 4,871 | 0.158 | 767.18 | 767.18 |
| 2 | 0.98 | 4,822 | 0.165 | 795.60 | 1,562.78 |
| 3 | 0.97 | 4,773 | 0.173 | 823.27 | 2,386.05 |
| 4 | 0.96 | 4,723 | 0.180 | 850.21 | 3,236.26 |
| 5 | 0.95 | 4,674 | 0.188 | 876.41 | 4,112.67 |
| 6 | 0.94 | 4,625 | 0.195 | 901.87 | 5,014.54 |
| 7 | 0.93 | 4,576 | 0.203 | 926.60 | 5,941.14 |
| 8 | 0.92 | 4,527 | 0.210 | 950.58 | 6,891.72 |
| 9 | 0.91 | 4,477 | 0.218 | 973.83 | 7,865.55 |
| 10 | 0.9 | 4,428 | 0.225 | 996.34 | 8,861.90 |
| 11 | 0.89 | 4,379 | 0.233 | 1,018.11 | 9,880.01 |
| 12 | 0.88 | 4,330 | 0.240 | 1,039.15 | 10,919.15 |
| 13 | 0.87 | 4,281 | 0.248 | 1,059.44 | 11,978.60 |
| 14 | 0.86 | 4,231 | 0.255 | 1,079.00 | 13,057.60 |
| 15 | 0.85 | 4,182 | 0.263 | 1,097.82 | 14,155.42 |
| 16 | 0.84 | 4,133 | 0.270 | 1,115.90 | 15,271.32 |
| 17 | 0.83 | 4,084 | 0.278 | 1,133.25 | 16,404.56 |
| 18 | 0.82 | 4,035 | 0.285 | 1,149.85 | 17,554.41 |
| 19 | 0.81 | 3,985 | 0.293 | 1,165.72 | 18,720.13 |
| 20 | 0.8 | 3,936 | 0.300 | 1,180.85 | 19,900.98 |