When the power goes out, a standby generator starts on its own. It is wired into the house and runs on natural gas or propane, so there is nothing to drag out of the garage and nothing to fill in the dark. Below are standby generators we have installed at homes across New Jersey. Each one shows the unit that went in, the transfer switch behind it and the town it is in, and where the homeowner left a review you will find that too. If you are trying to work out what size you need, this is a good place to start.

621 completed standby generator projects across 123 New Jersey towns, including 123 with a review written by the customer.

Standby Generator Installation in Red Bank, NJ | A 20 kW Generac on a 200-Amp Switch

Tamra and Brian from Red Bank, NJ have been Green Sun Energy Services clients since September of 2020. The machine is a Generac 7039-1 rated 20 kW on propane and 18 kW on natural gas, running on natural gas, on a 200-amp transfer switch, and it was commissioned in March of 2021. At about 2,500 square feet with a service-sized switch, the panel transfers as it stands. Green Sun has serviced it in September of 2021, January of 2022, January of 2023, January of 2024 and December of 2024, and it reports to remote monitoring in between.

Solar Panel Installation and Standby Generator Installation in Cranford, NJ | 7.875 kW and 18 kW

Stacey and Dante from Cranford, NJ have been Green Sun Energy Services clients since March of 2021. Two systems, signed six days apart and commissioned on the same day. An 18 kW standby generator: A Generac 7228 rated 18 kW on propane and 17 kW on natural gas, running on natural gas, on a 200-amp transfer switch. The house is about 2,500 square feet and the switch is service-sized, so the panel transfers as it stands rather than a chosen set of circuits. 7.875 kW of solar: Twenty-one LG 375-watt panels on an Ecolibrium Solar mounting system, with first-year production

Standby Generator Installation in Little Egg Harbor, NJ | A 13 kW Generac

John from Little Egg Harbor, NJ has been a Green Sun Energy Services client since April of 2021. The machine is a Generac 7175 rated 13 kW on natural gas, on a 200-amp transfer switch, and it was commissioned in July of 2021. Thirteen kilowatts is toward the smaller end of the air-cooled range, and the size follows what has to run and what has to start rather than the floor area – a compressor or a pump asks for a larger temporary draw than its nameplate suggests. Green Sun has serviced it in August of 2022, September of 2023,

22 kW Generac standby generator in Colts Neck, NJ

Standby Generator Installation in Colts Neck, NJ | A 22 kW Generac on a 200-Amp Switch

Scott and Lanie from Colts Neck, NJ have been Green Sun Energy Services clients since February of 2021. The machine is a Generac 7043-2 rated 22 kW on propane and 19.5 kW on natural gas, running on natural gas, on a 200-amp transfer switch, and it was commissioned in August of 2021. At about 2,100 square feet with the whole panel transferring, nothing here is set aside for an outage. Green Sun serviced it in September of 2022, September of 2023 and June of 2025.

Standby Generator Installation in Bayville, NJ | A 24 kW Generac on a 150-Amp Switch

William from Bayville, NJ has been a Green Sun Energy Services client since February of 2022. The machine is a Generac 7209 rated 24 kW on propane and 21 kW on natural gas, running on natural gas, on a 150-amp transfer switch, and it was commissioned in August of 2022. Bayville is close enough to the water that an outage here is usually a weather event rather than a fault on the line, which is the case a standby machine is bought for. Green Sun has serviced it in August of 2023, August of 2024 and September of 2025, and

Standby Generator Installation in Farmingdale, NJ | An 18 kW Generac on a 200-Amp Switch

David from Farmingdale, NJ has been a Green Sun Energy Services client since May of 2022. The machine is a Generac 7226 rated 18 kW on propane and 17 kW on natural gas, running on natural gas, on a 200-amp transfer switch, and it was commissioned in July of 2022. At about 1,750 square feet the house sits well inside what 18 kW carries, so the 200-amp switch takes the panel whole rather than a chosen few circuits. Green Sun has serviced it in July of 2023, August of 2024 and September of 2025, and it reports to remote monitoring

Standby Generator Installation and Standby Generator Service in Springfield, NJ

Standby Generator Installation in Springfield, NJ | A 22 kW Generac, Client Since 2020

Irina from Springfield, NJ has been a Green Sun Energy Services client since August of 2020. The machine is a Generac 7043-2 rated 22 kW on propane and 19.5 kW on natural gas, running on natural gas, on a 200-amp transfer switch, and it was commissioned in November of 2020. The house is about 3,538 square feet and the switch carries the whole panel. Green Sun has serviced it every fall since – November of 2021, October of 2022, November of 2023, October of 2024 and October of 2025 – which puts the visit before winter rather than after the

Standby Generator Installation in Holmdel, NJ | A 24 kW Generac on a 150-Amp Switch

Thomas from Holmdel, NJ has been a Green Sun Energy Services client since June of 2021. The machine is a Generac 7209 rated 24 kW on propane and 21 kW on natural gas, running on natural gas, on a 150-amp transfer switch, and it was commissioned in February of 2022. At about 3,900 square feet the house is at the size where 24 kW stops being generous and starts being the number the calculation lands on – two air handlers, or one and a well, and the margin is gone.

22 kW Generac standby generator in Lawrenceville, NJ

Standby Generator Installation in Lawrenceville, NJ | A 22 kW Generac, Client Since 2020

Arnold from Lawrenceville, NJ has been a Green Sun Energy Services client since October of 2020. The machine is a Generac 7043-2 rated 22 kW on propane and 19.5 kW on natural gas, running on natural gas, on a 200-amp transfer switch, and it was commissioned in July of 2021. At about 2,700 square feet with the whole panel transferring, nothing here is left off a list. Green Sun has serviced it every year since – July of 2022, June of 2023, June of 2024, May of 2025 and April of 2026 – and it reports to remote monitoring in

Standby Generator Installation in Somerville, NJ | A 24 kW Generac on a 200-Amp Switch

Susan from Somerville, NJ has been a Green Sun Energy Services client since March of 2025. The machine is a Generac 7209 rated 24 kW on propane and 21 kW on natural gas, running on natural gas, on a 200-amp transfer switch, and it was commissioned in May of 2025. The house is about 1,576 square feet, which is worth stating plainly: floor area is not the load calculation. What sets the size is the equipment – the heat, the well or the sump, the air conditioning compressor – and a compact house with all of it running still asks

200-amp automatic transfer switch in Manalapan, NJ

Standby Generator Installation in Manalapan, NJ | An 18 kW Generac on a 200-Amp Switch

Nicole from Manalapan, NJ has been a Green Sun Energy Services client since July of 2023. The machine is a Generac 7226 rated 18 kW on propane and 17 kW on natural gas, running on natural gas, on a 200-amp transfer switch. It was commissioned in September of 2023. The house is about 2,700 square feet, and an 18 kW machine behind a 200-amp switch is the pairing that lets the panel transfer whole rather than in part. Green Sun has serviced it each August since – 2024, 2025 and 2026 – and it reports to remote monitoring between visits.

Standby Generator Installation in Springfield, NJ | A 16 kW Generac, Client Since 2020

Jonathan from Springfield, NJ has been a Green Sun Energy Services client since September of 2020. The machine is a Generac 7178 rated 16 kW on natural gas, on a 200-amp transfer switch, and it was commissioned in June of 2021. At about 1,800 square feet the house sits well inside what a 16 kW machine carries, so the 200-amp switch transfers the whole panel rather than a chosen few circuits. Green Sun has serviced it every year since – May of 2022, May of 2023, June of 2024, March of 2025 and March of 2026.