Getting a Generac generator is seamless with our comprehensive process. It begins with a free consultation to assess your backup power needs, budget, and property suitability. We then design a custom solution, manage all permits and approvals, and perform a professional installation. After activation, we ensure your system runs smoothly with ongoing monitoring, maintenance, and support services. With our expertise, you’ll enjoy reliable, uninterrupted power and peace of mind for years to come.
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Initial Consultation
In your first meeting, a local Energy Consultant will assess your backup power requirements, determine the ideal generator size, and identify suitable installation locations. They’ll provide an initial design, review warranty and service plans, and discuss flexible payment options, including deferred payments, term loans, and a discount for check payments. This ensures a tailored and cost-effective solution for your needs.
On-Site Assessment
On-Site Assessment
Your Energy Consultant will visit your home to evaluate the planned generator and transfer switch locations. They’ll document gas and electrical pathways, confirm pricing, and collect essential details like your property survey and utility account numbers. This information is crucial for preparing the permitting and registration process, ensuring a smooth installation journey.
Design & Permitting
Design, Permitting, and Registration
Our team manages the design, permitting, and registration process to ensure smooth and timely approval from the township and utility companies to ensure that you gas and electrical systems are capable of supporting your new generator.
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Delivery & Electrical Installation
Once your paperwork is complete, the electrical installation typically takes 1-3 days. Installers ensure your generator and transfer switch are delivered and installed according to design specifications and code compliance.
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Natural Gas Installation
Once the electrical installation is complete, our plumbers will run the new gas lines from your gas meter to your generator. The line will be pressurized and tested by the township to ensure safety and code compliance.
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Startup & Orientation
After passing the pressure test inspection, one of our technicians will finalize the natural gas connection, conduct a full generator test including a power outage simulation, and provide a detailed orientation on how to operate the generator.
Inspection & Activation
Final Inspection
Your dedicated Project Manager will coordinate the final plumbing, electrical, and fire inspections with the township to ensure all requirements are met and approved.
Monitoring for Optimal Solar Performance
Monitoring & Maintenance
Now that your system is up and running, you can relax while our team continuously monitors its performance to ensure it operates at peak efficiency.
Talk to a New Jersey-Based Energy Expert Today!
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.
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…
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…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…
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…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…
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…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…
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…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