Reliable Backup Power for Union County Homes
Union County homeowners experience power outages caused by severe thunderstorms, high winds, winter storms, heavy rain, and aging electrical infrastructure. With a mix of densely populated suburban neighborhoods, older housing stock, and shared utility corridors, outages can spread quickly and restoration times can extend during regional storm events.
Centrally located in Middletown, NJ, Green Sun Energy Services, LLC provides Generac standby generator installation and service throughout Union County, NJ. As a Generac Authorized Sales & Service Dealer, we design backup power systems that deliver dependable performance while accounting for tight lot sizes, zoning requirements, fuel availability, noise considerations, and local permitting rules.
Customer Reviews for Solar, Roofing, EV Chargers, Generators, Soft Washing & Holiday Lighting
- GusFarmingdale, NJ · 2026Reviewed us onGoogle
See the projectExcellent service, follow-up, and an outstanding experience throughout the entire process! We were extremely happy with Green Sun…
Read more
…Energy Services from the first day through the final Township approvals. They even coordinated with the gas company to install a larger gas meter for our new generator. A special thank-you to Jennifer for her consistent follow-up and help getting everything completed. We highly recommend the team! Gus & Joan Vergara
Holmdel, NJ · 2026Reviewed us onGoogle
See the projectJohn and Auston were a stellar team, their attention to detail was amazing. Thank you!
- JeannieMorganville, NJ · 2026Reviewed us onGoogle
See the projectWe purchased a generator last October and it was installed by Green Sun Energy Services. There were a few delays beyond their…
Read more
…control (snow, town permits, technical problem with the actual generator), but I was so pleased with the professionalism of everyone I dealt with Glen, Karen, Jennifer, Chris and all the technicians who worked to install our generator. Early this morning I experienced our first extended loss of power due to a large tree falling in the area. After a few seconds in the dark and some supernatural sounds, our generator powered right up. Nine hours later power is still out but our generator is going strong. Definitely one of the best purchases we've made!
- BarryLambertville, NJ · 2026Reviewed us onGoogle
See the projectAustin visited for the yearly maintenance on our generator. He was courteous, pleasant, and professional. He explained everything…
Read more
…he did in detail. I appreciate that Green Sun keeps track of the maintenance schedule so I don't have to. Great service.
- ThomasMiddletown, NJ · 2026Reviewed us onGoogle
See the projectMike serviced and installed a new battery for my generator.He did a great job and was very helpful with all my questions.Thank You.
- Ronald and RobinFair Haven, NJ · 2026Reviewed us onBBB
See the projectAs an engineer, I appreciate and recognize what it takes to plan and execute an excellent job, and thats what Green Sun Energy…
Read more
…did for us with the installation, and now ongoing maintenance, of our stand-by generator.
- AnnamariaRed Bank, NJ · 2026Reviewed us onYelp
See the projectOur annual service was done yesterday by John he was amazing and has been serving our generator for a few years now, the whole team is amazing!
- Steve and LisaScotch Plains, NJ · 2026Reviewed us onYelp
See the projectMike was great! Thorough and professional!! Took the time to explain what he did/replaced.
- MarcinParlin, NJ · 2026Reviewed us onGoogle
See the projectGreat generator service and troubleshooting by Auston. Highly recommend the company.
Custom Generac Generator Solutions for Union County Properties
Union County homes often feature higher electrical demand within smaller footprints, making proper generator sizing and placement critical. We design systems for:
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Essential Power Coverage – Keeps critical circuits running
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Whole-Home Backup – Seamless power for most or all of your home
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Managed Whole-Home Backup – Uses Generac load management to balance comfort and generator size
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Each system is carefully sized to support HVAC systems, sump pumps, refrigeration, home offices, medical equipment, and security systems.
Generac Generator Installation Services in Union County, NJ
A permanently installed Generac standby generator restores power automatically—often within seconds of an outage.
Our Generator Installation Process
We manage the entire process for Union County homeowners:
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Electrical load assessment and generator sizing
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Evaluate and select the optimal generator location to balance safety, code compliance, aesthetics, noise, service access, and overall cost
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Permit coordination with local municipalities
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Code-compliant electrical and natural gas or propane connections
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Automatic transfer switch installation
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Full system testing and homeowner walkthrough
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Our installations are designed for long-term reliability in dense suburban environments.
Generac Generator Service & Maintenance in Union County, NJ
Tighter neighborhoods and year-round readiness make routine service essential.
Generator Maintenance Services Include:
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Annual preventive maintenance, including:
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Spark plug replacement
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Valve lash adjustment
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Air filter replacement
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Oil and filter changes
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Battery inspection
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Load testing and system diagnostics
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Firmware updates and performance checks
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Generator repair and warranty service by certified technicians
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Optional Generac Mobile Link™ remote monitoring, allowing proactive performance tracking and maintenance alerts
Routine maintenance helps extend generator life and reduces the risk of failure during extended outages.
Get the Unbeatable Protection of a Generac Generator!
When the power goes out, your Generac standby generator turns on automatically—usually within seconds—so your home stays safe and comfortable. That means your heat or A/C, refrigerator, sump pump, Wi-Fi, lights, and essential systems can keep running without you doing anything.
Unlike portable generators, a standby generator is permanently installed, starts and stops on its own, and runs on your home’s natural gas or propane—so there’s no refueling, no extension cords, and no scrambling during a storm.
Generac Standby Generators for Reliable Home Backup Power
Generac air-cooled standby generators are among the most advanced and reliable systems in their class, engineered to deliver dependable, fully automatic backup power when the electrical grid goes down. Designed to monitor utility power 24/7, these generators start on their own within seconds of an outage, restoring electricity seamlessly to help keep your home operating normally and your family safe, comfortable, and connected. From essential appliances to heating, cooling, and critical systems, a Generac standby generator provides confidence when storms, accidents, or utility failures strike. With proven performance and trusted technology, you gain real peace of mind knowing your home is prepared for the unexpected. We’ll guide you through the available options below to help you choose the right Generac system for your home and energy needs.
Generac air-cooled standby generators deliver dependable, automatic backup power when the grid goes down. They start within seconds of an outage to keep your home running and your family comfortable. We’ll help you choose the right Generac system from the options below.
10kW Generac Generator
The Generac Next Generation 10kW Generator offers reliable backup power with 10,000 watts on propane and 9,000 on natural gas. It features a durable engine, clean power for devices, quiet self-tests, and a weather-resistant design. It can be installed with an essential circuit transfer switch supporting 10–12 circuits or a whole-house transfer switch capable of powering a 1,500-square-foot home. 4G Remote monitoring makes it easy to stay connected.
Specifications for the 10kW Generac Generator
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- Rated kW LPG/NG: 10/9
- Main Line Circuit Breaker: 45 amp
- Amps @ 240V LPG: 41.7
- Amps @ 240V NG: 37.5
- Operating RPM: 3600
- Engine: Generac G-Force 400 Series
- Engine Displacement: 459cc
- Fuel Consumption @ Full Load – NG cu. ft/hr: 127
- Fuel Consumption @ Full Load – LPG cu. ft/hr (gal/hr): 54 (1.48)
- db(A) at Normal Operating Load: 61
- Dimensions (L x W x H) in: 46.4 x 26.3 x 30.7
- Weight (lb): 334
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Generac Scheduled Maintenance & Service Plans for New Jersey Homeowners
Our Annual Service Plans for New Jersey homeowners include regular maintenance, expert monitoring, and extended warranty options to ensure your Generac standby generator operates at its best. These plans provide peace of mind with comprehensive care and support, ensuring reliable power when you need it most.
Diamond
- Best for total peace of mind—annual maintenance, extended parts/labor warranty, and Green Sun–managed remote monitoring.
- Our scheduled maintenance service includes spark plug and air filter replacement, oil and filter changes, battery inspection, load testing and system diagnostics, firmware updates, and full performance checks.
- Generac's extended warranty covers parts and labor for 5, 7, or 10 years from the date of activation and can be purchased anytime within 10 years.
- Includes Green Sun managed Wi-Fi or cellular monitoring.
- Pre-paid annually with 5-Years of price protection.
Gold
- Best for strong protection without monitoring—annual maintenance plus extended parts/labor warranty for dependable coverage.
- Our scheduled maintenance service includes spark plug and air filter replacement, oil and filter changes, battery inspection, load testing and system diagnostics, firmware updates, and full performance checks.
- Generac's extended warranty covers parts and labor for 5, 7, or 10 years from the date of activation and can be purchased anytime within 10 years.
- Does NOT include Green Sun Wi-Fi or cellular monitoring.
- Pre-paid annually with 5-Years of price protection.
Silver
- Best for budget-friendly upkeep—annual maintenance with Generac’s standard warranty, keeping your system ready year-round.
- Our scheduled maintenance service includes spark plug and air filter replacement, oil and filter changes, battery inspection, load testing and system diagnostics, firmware updates, and full performance checks.
- Generac's standard 5-year, limited warranty includes full coverage for 2 years, limited parts coverage for 3 years, and engine/alternator coverage in years 4-5.
- Does NOT include Green Sun Wi-Fi or cellular monitoring.
- Pre-paid annually with 5-Years of price protection.
Why Choose Green Sun Energy Services for Generac Generator Installation & Service?
At Green Sun Energy Services, we’ve proudly served Monmouth, Ocean, Middlesex, Somerset, Mercer, and Union counties since 2010. We’re licensed, insured, and bonded, and our team is Generac Sales & Service certified, specializing in Generac home standby generators that deliver reliable backup power during unexpected outages. With thousands of happy customers, we’ve earned trust through quality workmanship and ongoing local support. We make the process simple with flexible financing options, expert system design and installation, and strong warranty support. Let us help you protect your home and family with a Generac generator.
Since 2010, Green Sun Energy Services has helped homeowners across Monmouth and nearby NJ counties stay protected with reliable Generac standby power. We’re licensed, insured, and bonded, and Generac Sales & Service certified, providing expert installation, maintenance, and local support. With flexible financing, professional design/installation, and strong warranty options, we make it easy to protect your home and family.
Whether you’re installing a new generator or maintaining an existing system, we provide the local expertise and long-term support homeowners expect from a trusted generator provider.
Why Backup Power Matters in Union County, NJ
Over the past decade, Union County homeowners have averaged 2–3 power outages per year, most commonly caused by severe thunderstorms, high winds, winter weather, and fallen trees. Due to dense population, shared utility infrastructure, and older electrical systems, outages can affect large areas and take 12–36 hours or longer to fully restore during major storm events.
Extended outages in Union County can disrupt:
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Heating and air conditioning, especially during extreme temperatures
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Sump pumps, increasing basement flood risk
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Refrigeration and food safety
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Home offices and remote work
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Medical equipment and security systems
A Generac standby generator restores power automatically within seconds—keeping your home protected without refueling, extension cords, or manual operation. For Union County homeowners, backup power is a practical investment in comfort, safety, and continuity.
Generator FAQs for Union County Homeowners
Are generators practical for smaller lots in Union County?
Yes. With careful placement and load management, Generac systems work well on tighter residential properties.
Do standby generators increase home value in Union County?
Yes. Backup power is an increasingly desirable feature for buyers in competitive suburban markets.
Can generators operate quietly in dense neighborhoods?
Yes. Modern Generac generators are designed to operate at residential sound levels and meet local noise requirements.
For more detailed answers about generator sizing, fuel options, run time, and maintenance, visit our Generator FAQs page.
Local Generator Installation & Service Throughout Union County
Kenilworth, NJ
16 kW Standby Generator Installation in Kenilworth, NJ | Whole-House Backup
Client since July 2019
Daniel from Kenilworth, NJ has been a Green Sun Energy Services client since July of 2019. The generator was commissioned that October: 16 kW on natural gas, on a 200-amp whole-house transfer switch, sized against a 16 kW calculation for…
Glen and his team were prompt and professional during both installation and annual maintenance. We lost power during the last hurricane and the generator worked perfectly. Pricing was very good and Glen was even able to get me an extended warranty (promo from Generac). I…
Scotch Plains, NJ
20 kW Standby Generator Installation in Scotch Plains, NJ | Generac Generator
Client since July 2013
Marty from Scotch Plains, NJ has been a Green Sun Energy Services client since July of 2013, which puts this among the oldest generator relationships on the site. The machine was commissioned that September: 20 kW on natural gas, on…
Green Sun Energy is very efficient and great communicators. I have been very pleased with their service for the past 10 years.
Cranford, NJ
20 kW Standby Generator Installation in Cranford, NJ | Whole-House Backup
Client since September 2018
Mary from Cranford, NJ has been a Green Sun Energy Services client since September of 2018. The generator was commissioned in February of 2019: a Generac Guardian rated 18 kW on natural gas, outdoors beside the meter, with a 100-amp…
Everything went as planned - we are extremely happy with the process from start to finish. Every step was scheduled and on time. We were kept informed throughout the entire process which made everything go so smooth from the permits, installation and final testing with…
Scotch Plains, NJ
Generac 16 kW Standby Generator in Scotch Plains, NJ | Two Sump Pumps Covered
Client since March 2018
Steve from Scotch Plains, NJ has been a Green Sun Energy Services client since March of 2018. He and Lisa signed at the end of March and the generator was commissioned on the first of June, a 16 kW Generac…
Mike was great! Thorough and professional!! Took the time to explain what he did/replaced.
Springfield, NJ
Generac 16 kW Standby Generator in Springfield, NJ | 200-Amp Service-Rated Switch
Client since November 2020
Diane from Springfield, NJ has been a Green Sun Energy Services client since November of 2020. The generator was signed that November and commissioned the following July, a 16 kW Generac on its own pad behind a 200-amp service-rated transfer…
Looking for a generator? Look no further. Green Sun Energy Services is 100% reliable, efficient, honest and extremely professional. They do ALL the paperwork that is required along with setting up the inspections and kept us updated every step of the way. Glen made this…
Springfield, NJ
Standby Generator Service in Springfield, NJ | Generac 22 kW | Client Since 2022
Client since September 2022
Scott from Springfield, NJ has been a Green Sun Energy Services client since September of 2022. His 22 kW Generac from the 7000 series is on Gold with a ten year term. Gold pairs the annual service with an extended…
★★★★★ Customer provided a 5-star rating without comments.
See What Our Clients Have to Say
- GusFarmingdale, NJ · 2026Reviewed us onGoogle
See the projectExcellent service, follow-up, and an outstanding experience throughout the entire process! We were extremely happy with Green Sun…
Read more
…Energy Services from the first day through the final Township approvals. They even coordinated with the gas company to install a larger gas meter for our new generator. A special thank-you to Jennifer for her consistent follow-up and help getting everything completed. We highly recommend the team! Gus & Joan Vergara
- Holmdel, NJ · 2026Reviewed us onGoogle
See the projectJohn and Auston were a stellar team, their attention to detail was amazing. Thank you!
- JeannieMorganville, NJ · 2026Reviewed us onGoogle
See the projectWe purchased a generator last October and it was installed by Green Sun Energy Services. There were a few delays beyond their…
Read more
…control (snow, town permits, technical problem with the actual generator), but I was so pleased with the professionalism of everyone I dealt with Glen, Karen, Jennifer, Chris and all the technicians who worked to install our generator. Early this morning I experienced our first extended loss of power due to a large tree falling in the area. After a few seconds in the dark and some supernatural sounds, our generator powered right up. Nine hours later power is still out but our generator is going strong. Definitely one of the best purchases we've made!
- BarryLambertville, NJ · 2026Reviewed us onGoogle
See the projectAustin visited for the yearly maintenance on our generator. He was courteous, pleasant, and professional. He explained everything…
Read more
…he did in detail. I appreciate that Green Sun keeps track of the maintenance schedule so I don't have to. Great service.
- ThomasMiddletown, NJ · 2026Reviewed us onGoogle
See the projectMike serviced and installed a new battery for my generator.He did a great job and was very helpful with all my questions.Thank You.
- Ronald and RobinFair Haven, NJ · 2026Reviewed us onBBB
See the projectAs an engineer, I appreciate and recognize what it takes to plan and execute an excellent job, and thats what Green Sun Energy…
Read more
…did for us with the installation, and now ongoing maintenance, of our stand-by generator.
- AnnamariaRed Bank, NJ · 2026Reviewed us onYelp
See the projectOur annual service was done yesterday by John he was amazing and has been serving our generator for a few years now, the whole team is amazing!
- Steve and LisaScotch Plains, NJ · 2026Reviewed us onYelp
See the projectMike was great! Thorough and professional!! Took the time to explain what he did/replaced.
- MarcinParlin, NJ · 2026Reviewed us onGoogle
See the projectGreat generator service and troubleshooting by Auston. Highly recommend the company.
Primary Generator Service Areas In New Jersey
Green Sun Energy Services delivers professional whole-home standby generator installation, maintenance, and repair across Monmouth, Ocean, Middlesex, Somerset, Mercer, and Union counties. As a certified Generac installer, we help homeowners safeguard their property with reliable backup power solutions designed for New Jersey’s demanding weather and frequent outages. Our expert team ensures every generator system is sized correctly, installed to code, and maintained for long-term performance. Explore our primary service areas below to see how we keep homes powered and protected.
Monmouth County
- - Aberdeen
- Allenhurst
- Allentown
- Asbury Park
- Atlantic Highlands
- Avon-by-the-Sea
- Belford
- Belmar
- Bradley Beach
- Brielle
- Clarksburg
- Cliffwood Beach
- Colts Neck
- Cream Ridge
- Eatontown
- Elberon
- Englishtown
- Fair Haven
- Farmingdale
- Fort Monmouth
- Freehold
- Freewood Acres
- Hazlet
- Highlands
- Holmdel
- Hornerstown
- Howell
- Imlaystown
- Interlaken
- Keansburg
- Keyport
- Leonardo
- Lincroft
- Little Silver
- Loch Arbour
- Locust
- Long Branch
- Manalapan
- Manasquan
- Marlboro
- Matawan
- Middletown
- Millhurst
- Millstone
- Monmouth Beach
- Morganville
- Navesink
- Neptune
- New Monmouth
- Oakhurst
- Ocean Township
- Oceanport
- Perrineville
- Port Monmouth
- Red Bank
- Robertsville
- Roosevelt
- Rumson
- Sea Bright
- Sea Girt
- Shrewsbury
- Shrewsbury Township
- Smithburg
- Southard
- Spring Lake
- Spring Lake Heights
- Strathmore
- Tinton Falls
- Union Beach
- Wall Township
- Wanamassa
- Wayside
- West Long Branch
- Wickatunk
Ocean County
- - Barnegat Light
- Barnegat Township
- Bay Head
- Bayville
- Beach Haven
- Beachwood
- Berkeley Township
- Brick Township
- Dover Beaches
- Eagleswood Township
- Forked River
- Jackson Township
- Lakewood
- Lavallette
- Little Egg Harbor Township
- Long Beach Township
- Manahawkin
- Manchester Township
- Mantoloking
- New Egypt
- Point Pleasant
- Point Pleasant Beach
- Seaside Heights
- Seaside Park
- Spray Beach
- Surf City
- Toms River Township
- Tuckerton
- Waretown
- Whiting
Show all 42 Ocean towns
- Harvey Cedars
- Island Heights
- Lacey Township
- Lakehurst
- Lanoka Harbor
- Mystic Island
- Ocean Gate
- Ocean Township
- Pine Beach
- Plumsted Township
- Ship Bottom
- Stafford Township
Middlesex County
- - Avenel
- Barber
- Brownville
- Carteret
- Chrome
- Clearbrook Park
- Colonia
- Concordia
- Cranbury
- Crossmans
- Dayton
- Dunellen
- East Brunswick
- Edison
- Fords
- Helmetta
- Kendall Park
- Laurence Harbor
- Metuchen
- Monmouth Junction
- Monroe Township
- North Brunswick
- Old Bridge
- Parlin
- Piscataway
- Plainsboro
- Sayreville
- South Plainfield
- Spotswood
- Woodbridge
Show all 54 Middlesex towns
- Edgebrook
- Ernston
- Gillespie
- Heathcote
- Highland Park
- Jamesburg
- Lincoln Park
- Madison Park
- Melrose
- Middlesex
- Milltown
- Morgan Heights
- New Brunswick
- Perth Amboy
- Port Reading
- Princeton Meadows
- Raritan Gardens
- Rossmoor
- Sayre Woods
- Sewaren
- Society Hill
- South Amboy
- South River
- Westons Mills
Somerset County
- - Basking Ridge
- Belle Mead
- Bernardsville
- Blackwells Mills
- Blawenburg
- Bound Brook
- Bradley Gardens
- Branchburg
- Bridgewater
- Clyde
- East Millstone
- Far Hills
- Finderne
- Franklin Township
- Gladstone
- Green Brook
- Green Knoll
- Griggstown
- Harlingen
- Hillsborough
- Kingston
- Manville
- Martinsville
- Middlebush
- Millstone Borough
- Mine Brook
- Skillman
- Somerset
- Somerville
- Warren
Show all 41 Somerset towns
- North Plainfield
- Peapack
- Pleasant Plains
- Raritan
- Rocky Hill
- South Bound Brook
- Ten Mile Run
- Voorhees
- Watchung
- Weston
- Zarephath
Mercer County
- - East Windsor
- Ewing
- Groveville
- Hamilton
- Hamilton Square
- Hightstown
- Hillcrest
- Hopewell
- Lawrence Township
- Lawrenceville
- Mercerville
- Pennington
- Princeton
- Princeton Junction
- Robbinsville
- Trenton
- Twin Rivers
- White Horse
- Yardville
Union County
- - Berkeley Heights
- Clark
- Cranford
- Elizabeth
- Fanwood
- Garwood
- Hillside
- Kenilworth
- Linden
- Mountainside
- New Providence
- Plainfield
- Rahway
- Roselle
- Roselle Park
- Scotch Plains
- Springfield Township
- Summit
- Union Township
- Westfield
- Winfield Township