Standby Generator and Solar Installation in Tinton Falls, NJ | 29.48 kW Solar & 26 kW Generac

Tinton Falls, NJ · Client since August 2025

David in Tinton Falls has been a Green Sun Energy Services client since August of 2025. The standby generator was commissioned in November and the solar array in December. Both systems are unusually large, and the reason is the same in each case.

A 26 kW machine and six modules

The electrical calculation for this 4,000 square foot house comes to 47,018 watts. That is roughly double a typical house of the same floor area, and the reason is what is in it rather than how big it is: an electric vehicle charger, a heat pump, and 14,500 watts of air conditioning.

A generator that could hold 47,018 watts outright does not belong on a residential property. What went in is a Generac 26 kW, model 7290, delivering 22.5 kW on natural gas, and behind it six load-management modules.

Between them those six modules take 26,180 watts out of the calculation, leaving 20,838 for the machine to carry. The EV charger and the heat pump are both on the managed list, which is exactly right: a car does not need to charge during a blackout, and a heat pump has a backup heat source. What is not managed keeps running without interruption.

One physical problem had to be solved before any of it could be installed. An existing mini-split unit stood where the generator needed to go, so at the household’s request it was relocated and wall-mounted. That sort of thing is invisible in a specification and decides whether a job is straightforward or not.

29.5 kW of solar, 67 panels

The array is 67 JA Solar 440-watt panels, 29.48 kW in total, on Unirac mounting with an Enphase IQ8HC microinverter behind every panel. Estimated first-year production is 28,994 kWh — and the utility is JCP&L. It was commissioned on 13 December 2025.

Sizing two systems for one house

The two systems were designed to different targets, and keeping those targets separate is what makes both of them correct.

The array is sized against the household’s annual consumption: how much electricity this house uses across a year, and how much roof there is to offset it. The generator is sized against something else entirely — not annual usage but simultaneous demand, the worst plausible moment when the air conditioning, the appliances and the well of ordinary loads are all drawing at once.

Those two numbers have almost nothing to do with each other, and a house like this one shows why conflating them goes wrong in both directions. Sizing the generator from the annual figure would produce a machine far too small. Sizing the array from the peak would produce one far too large. Each system gets its own question, and load management does the work of reconciling the answer with what a residential machine can physically deliver.

Questions from Tinton Falls homeowners

SolarShould the system cover 100 percent of annual usage?

Often that is an attractive target, but it is not automatically the best design. Roof area, shading, the financing structure, future electricity use, equipment size, utility limits and roof condition all bear on it. A 90 to 95 percent offset on an excellent roof can be a better system than one forced onto shaded surfaces to reach a round number.

Standby generatorWhat is a service-entrance-rated transfer switch?

One that is listed for use as service equipment when installed in the appropriate configuration. These are commonly used for whole-house systems, where the transfer switch becomes part of the home's service arrangement rather than sitting downstream of it.

Standby generatorWhy do outages last longer on some Tinton Falls streets than others?

Mature tree cover over overhead lines is the usual reason. Limbs coming down in wind, snow or ice take the lines with them, so heavily treed streets tend to see both more frequent outages and longer restoration times than open ones. It is one of the honest arguments for standby power rather than a portable generator.