For a home like 876 San Simeon Dr, Mountain View, with optional small-wind backup. This version uses editable seasonal multipliers and 24-hour dispatch. Solar is forced to zero at night; wind can run day and night.
Small turbines are very site-sensitive. Clear tower exposure is much better than roof/window mounting because turbulence sharply reduces output.
A seasonal multiplier of 1.00 means no change. Values above 1 increase monthly output; values below 1 reduce monthly output. The solar day-shape inputs only distribute that daily solar energy across daylight hours; solar is zero at night.
Solar is now modeled as 0 kWh during night hours. The solar shoulder and mid-day multipliers shape only the daylight distribution, then the hourly values are normalized so the selected month's daily solar kWh stays equal to the seasonal estimate. Wind remains available day and night using separate day/night multipliers.
| Selected month grid | -- |
| Annual grid total | -- |
| Renewable coverage | -- |
| Powerwall discharge on typical day | -- |
| End-of-day SOC estimate | -- |
| Solar surplus charge | -- |
| Wind surplus charge | -- |
| Grid charge | -- |
| Total grid draw incl. charging | -- |
All charts are in kWh. Grid withdrawal is calculated hour by hour. Solar and wind serve the load first, then the Powerwall discharges down to reserve, then the grid supplies the remaining load. If grid charging is allowed, the grid restores the Powerwall after discharge when renewable surplus is not enough.
Daily view: one typical average day in the selected month.
Weekly view: 7 × the typical average day in the selected month.
Selected-month view.
Powerwall charging view: shows whether battery recharge comes from renewable surplus or, when allowed, grid charging. The only user setting is backup reserve target; current SOC is simulated.
24-hour dispatch view: stacked bars show each hour of load served by solar, wind, Powerwall discharge, and grid. Solar is zero at night; in low-production months the first 6 hours are served by wind, then Powerwall, then grid.
Annual view: each month uses the entered seasonal multipliers, so months vary across the year.