11 of 12 months on file for 2023. Partial year — interpret accordingly.
Total Energy Yield (FY23)
3.5MWh
First year on file — no prior to compare.
ROI Milestones
1.5% paid off
Est. payback in ~16.4 years at current burn rate.
Peak Month
DEC
1,494 kWh produced · 1.49 MWh
Best Day
No daily rows on file for 2023 yet.
Solar produced
3.5 MWh
Home consumed
22.5 MWh
Net grid (in − out)
594 kWh
imported 718 kWh · exported 125 kWh
Bills paid
$3834.70
Estimated savings
$682.88
vs no-solar baseline
Avg self-sufficiency
86%
share of home covered by solar
Across all 31 solar-era months on file. Doesn't change with year navigation.
Solar produced (lifetime)
67.1 MWh
67,112 kWh total
Home consumed (lifetime)
68.8 MWh
98% covered by solar
Total bills paid
$2174.34
across all bills on file
Estimated savings (lifetime)
$10327.82
vs no-solar baseline
Highest production day (lifetime)
114.4 kWh
Mar 18, 2026
Peak month (lifetime)
3,011 kWh
Apr '25
Monthly shape across the year — how solar / home / bills moved month-to-month rather than the annual totals above.
Energy by month (kWh) — actual solar vs projected
Bill & savings by month ($)
Production vs projected (3 months on file)
PVWatts typical-meteorological-year projection for 17.85 kW DC at tilt 20° / azimuth 180° — annual 27,458 kWh. Re-run apps/solar-tracker/scripts/fetch-pvwatts.sh after the panel expansion lands.
Calendar quarters of 2023. Status reconciles when all three Duke billing periods are on file.
| Quarter | Solar | Home | Bills | Savings | Status |
|---|---|---|---|---|---|
| Q1 FY23 | 0 kWh | 4,175 kWh | $832.97 | $-110.97 | Reconciled |
| Q2 FY23 | 0 kWh | 4,771 kWh | $956.56 | $-135.05 | 2/3 months |
| Q3 FY23 | 0 kWh | 7,483 kWh | $1502.17 | $-212.31 | Reconciled |
| Q4 FY23 | 3,493 kWh | 6,067 kWh | $543.00 | $682.88 | Reconciled |
Year-to-date, derived from 3,493 kWh produced.
41
Trees planted equivalent
2.5 t
CO₂ averted
1.4 t
Coal avoided
10k
Clean EV miles
Best solar month
1,494 kWh
Dec '23
Lowest bill
$17.01
Dec '23
Biggest savings month
$309.26
Dec '23
Peak self-sufficiency
99%
Oct '23
Weakest solar month
548 kWh
Oct '23
Highest bill
$546.79
Jun '23
Lowest self-sufficiency
79%
Nov '23
Largest grid import
364 kWh
Nov '23