Wolverine Power Systems - Michigan’s Premier Generac Industrial Generator Sales and Service Dealer
Sourcewell - a cooperative purchasing organization that serves educational, governmental, and non-profit groups. It aims to simplify procurement, enhance quality, and reduce costs Now hiring at Wolverine Power Systems of Michigan Emergency generator service in Michigan by Wolverine Power Systems. All makes and models, industrial, commercial and residential, natural gas, diesel or propane

Generac Portable Generators in Michigan – Your Power, Anywhere You Need It

Authorized Generac distributor providing portable power solutions for home backup, job sites, and recreation across Michigan

Get a Portable Generator Today!

1-800-485-8068
4 locations in Michigan
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Generac portable generators, inverters, pressure washers, water pumps and more at Wolverine Power Systems of Michigan

Reliable Portable Power When You Need It Most

When the unexpected happens—whether it's a severe Michigan storm knocking out power, a remote job site without electrical access, or a weekend camping trip—having reliable portable power makes all the difference. At Wolverine Power Systems, we've been helping Michigan families and businesses stay powered up since 1999. Moreover, we understand the unique challenges that our local climate presents, from brutal winter storms to summer severe weather that can leave homes without electricity for hours or even days.

As an authorized Generac distributor, we carry the complete lineup of portable generators, inverters, and power stations designed to meet every need and budget. In addition to offering top-quality equipment, our team provides expert consultation to help you choose the right generator for your specific situation. Furthermore, we offer professional installation services and ongoing support to ensure your generator performs flawlessly when you need it most.

25+ Years Serving Michigan Communities | Certified Technicians | Local Service & Support

Portable Generator Solutions for Every Application

Different situations demand different power solutions. Consequently, we've organized our portable generator offerings into three main categories to help you quickly find what you're looking for. Each category addresses specific needs, whether you're protecting your home during outages, powering professional equipment on the job, or enjoying the great outdoors.

Home Backup Power

Michigan weather can be unpredictable, and power outages often strike at the worst possible times. Therefore, having a portable generator ready to go provides peace of mind for your family. Our home backup generators range from 3,600 to 18,000 watts, offering enough power to keep essential appliances running during extended outages.

Perfect for: Refrigerators, sump pumps, heating systems, well pumps, lights, and medical equipment

Popular models: 7500W Dual Fuel, 8000W Electric Start, 15,500W EFI

Professional Job Sites

Contractors and construction professionals need dependable power that can handle heavy-duty tools and equipment. In fact, our industrial-grade portable generators deliver the robust performance required for demanding job sites throughout Michigan. Additionally, features like electric start and fuel efficiency mean less downtime and more productivity.

Perfect for: Power tools, welders, compressors, lighting systems, and heavy machinery

Popular models: 8000W Portable, GP9500E Tri-Fuel, 5000W Diesel

Recreation & Camping

Whether you're tailgating at a Michigan football game, camping up north, or enjoying an RV adventure, our portable inverters and power stations deliver clean, quiet power for all your outdoor activities. Meanwhile, their compact design and lightweight construction make them easy to transport and store.

Perfect for: RVs, camping gear, outdoor events, tailgating, and sensitive electronics

Popular models: iQ3800 Dual Fuel Inverter, 2500i Inverter, 1000/2000 Power Stations

Complete Portable Generator Product Line

We proudly offer Generac's full range of portable power solutions. As a result, you'll find everything from compact inverters perfect for camping to powerful generators capable of running your entire home. Below, we've broken down our offerings by category to help you understand which type best suits your needs.

Portable Inverter Generators (2,200W - 5,200W)

Inverter generators represent the latest technology in portable power. Specifically designed to produce clean, stable electricity, they're safe for sensitive electronics like laptops, phones, and medical devices. Furthermore, inverter technology makes these units significantly quieter than traditional generators—often producing no more noise than a normal conversation.

Key advantages include:

  • Ultra-quiet operation: Typically 50-60 decibels, quieter than a dishwasher
  • Fuel efficiency: Economy mode adjusts engine speed to match power demand
  • Lightweight & portable: Easy to transport and store in tight spaces
  • Parallel capability: Connect two units for double the power

Available models: 2500i, 3300i, 3500i, iQ3800 Dual Fuel, iQ5200 Dual Fuel

Generac portable inverters at Wolverine Power Systems of Michigan
Generac portable generators at Wolverine Power Systems of Michigan

Mid-Range Portable Generators (3,600W - 8,000W)

This category represents the sweet spot for most homeowners and small contractors. Indeed, these generators provide enough power to run several essential appliances simultaneously while remaining portable enough to move when needed. Additionally, many models feature COsense® technology, which continuously monitors carbon monoxide levels and automatically shuts down the generator if unsafe levels are detected.

Ideal applications:

  • Home backup during power outages lasting 12-48 hours
  • Running well pumps, sump pumps, and refrigerators simultaneously
  • Powering multiple job site tools and equipment
  • Outdoor events requiring significant electrical capacity

Available models: 3600W, 6500W, 7500W Dual Fuel, 8000W Electric Start

Heavy-Duty Portable Generators (9,500W - 18,000W)

When you need serious power, our heavy-duty generators deliver professional-grade performance. These units can power entire homes, large job sites, or commercial operations. Moreover, features like electronic fuel injection (EFI), electric start, and tri-fuel capability make them versatile and reliable even in demanding conditions.

Premium features include:

  • EFI Technology: Better fuel efficiency and easier cold-weather starts
  • Multi-fuel capability: Run on gasoline, propane, or natural gas
  • Extended runtime: Large fuel tanks provide 10+ hours of operation
  • Commercial-grade components: Built for frequent, heavy use

Available models: GP9500E Tri-Fuel, 15,500W EFI, 18,000W EFI

Generac portable generators at Wolverine Power Systems of Michigan
Generac portable battery power station at Wolverine Power Systems of Michigan

Portable Power Stations (1,000W - 2,000W)

For situations where gasoline generators aren't practical or allowed, our battery-powered portable power stations offer a clean, quiet alternative. These units are perfect for indoor use, providing backup power without emissions or noise. In addition, they can be recharged via wall outlets, solar panels, or even your vehicle.

Best uses: Medical equipment, indoor events, apartments, RVs, off-grid cabins, emergency kits

Available models: 1000W Power Station, 2000W Power Station

Why Choose Wolverine Power Systems for Your Portable Generator?

Selecting the right portable generator is just the beginning. Equally important is working with a dealer who understands your needs and stands behind their products. Here's what sets us apart as Michigan's trusted portable power provider.
Local Michigan Expertise
We understand Michigan's unique power challenges, from ice storms to summer severe weather. Consequently, we can recommend solutions specifically suited to our climate.
Authorized Generac Dealer
As an authorized dealer, we offer genuine Generac products with full manufacturer warranties. Furthermore, our technicians receive ongoing factory training.
Professional Consultation
Our experienced staff will consult you to choose the best portable generator for your needs
Ongoing Service & Support
From routine maintenance to emergency repairs, we're here for the life of your generator. Additionally, we stock common parts for faster service.
Competitive Pricing
We offer fair, transparent pricing on all our generators and services. Moreover, we'll help you find the most cost-effective solution for your specific needs.
No-Pressure Consultation

We take time to understand your situation before recommending solutions. As a result, you'll get the generator you actually need, not the one with the highest price tag.

Safe Portable Generator Installation & Transfer Switches

While portable generators offer incredible flexibility, connecting them to your home's electrical system requires professional installation to ensure safety and code compliance. In particular, a manual transfer switch is essential for safely powering your home without risking damage to your appliances or creating a hazardous backfeed situation that could endanger utility workers.

What is a Manual Transfer Switch?

A manual transfer switch acts as a bridge between your portable generator and your home's electrical panel. Essentially, it allows you to safely select which circuits receive generator power while isolating your home from the utility grid. This isolation is critical—without it, your generator could send electricity back through utility lines, potentially injuring or killing line workers attempting to restore power in your neighborhood.

Generac portable generator transfer switch at Wolverine Power Systems of Michigan

Our Professional Installation Process

When you choose Wolverine Power Systems for your transfer switch installation, we work with licensed electricians and follow a comprehensive process to ensure everything is done correctly:

  1. Home Assessment: First, we evaluate your home's electrical system and discuss which circuits you want powered during an outage. Typically, homeowners prioritize refrigerators, furnaces, sump pumps, well pumps, and select lighting circuits.
  2. Generator Sizing: Based on your essential circuits, we calculate the total wattage needed and recommend an appropriately sized generator. As a result, you won't overspend on capacity you don't need.
  3. Transfer Switch Installation: Our licensed electricians install a UL-listed manual transfer switch adjacent to your electrical panel. This installation includes clearly labeled switches for each selected circuit.
  4. Generator Connection Point: We install an outdoor inlet box with a weather-resistant cover, providing a safe, permanent connection point for your generator's power cord.
  5. Safety Training: After installation, we thoroughly explain how to operate your transfer switch safely. In addition, we provide written instructions for future reference.

Generator Placement & Safety Considerations

Proper generator placement is crucial for safety. Carbon monoxide poisoning from generators remains a serious risk, particularly during power outages when ventilation may be compromised. Therefore, we always emphasize these critical safety guidelines:

  • Distance from home: Place generators at least 20 feet from your home, with the exhaust directed away from windows, doors, and air intakes
  • Never use indoors: This includes garages, basements, crawl spaces, and partially enclosed areas—even with open doors
  • Weather protection: Use a generator cover or canopy that allows adequate ventilation while protecting from rain and snow
  • Level, stable surface: Position on solid, level ground to prevent tipping and ensure proper oil circulation
  • CO detectors: Install battery-powered carbon monoxide detectors in your home, particularly near sleeping areas

Many of our Generac generators include COsense® technology, which continuously monitors carbon monoxide levels and automatically shuts down the unit if dangerous concentrations are detected. Nevertheless, proper placement remains your first line of defense against CO poisoning.

Need Help with Installation? 

Contact us today for a free consultation on safely connecting your portable generator to your home.

Choosing the Right Portable Generator Size

One of the most common questions we receive is, "What size generator do I need?" The answer depends on what you plan to power. Consequently, we've developed a simple approach to help you calculate your requirements.

Starting Watts vs. Running Watts

Before diving into calculations, it's important to understand the difference between starting watts and running watts. Many appliances and tools require significantly more power to start than they do to run continuously. For example, a refrigerator might need 1,200 watts to start up but only 700 watts to run. Therefore, your generator must be sized to handle the combined starting watts of appliances that might start simultaneously.

Essential Home Appliances & Their Power Requirements

Here's a guide to typical wattage requirements for common household items:

    • Refrigerator/Freezer: 700W running, 2,200W starting
    • Sump Pump (1/3 HP): 800W running, 1,300W starting
    • Well Pump (1/2 HP): 1,000W running, 2,000W starting
    • Furnace Blower: 800W running, 2,350W starting
    • Window AC Unit (10,000 BTU): 1,500W running, 4,500W starting
    • LED Lights (10 bulbs): 100W running, 100W starting
    • Television (LED): 150W running, 150W starting
    • Microwave Oven: 1,000W running, 1,000W starting
    • Laptop Computer: 50W running, 50W starting
    • Phone Charger: 10W running, 10W starting
Generac portable generators at Wolverine Power Systems of Michigan

Quick Sizing Guide

3,600W - 5,500W Generators: Best for essential circuits only—refrigerator, furnace, lights, and one or two other small appliances. This size works well for apartments or small homes where you're selective about what you power.

6,500W - 8,000W Generators: The most popular range for average homes. Typically handles refrigerator, freezer, furnace, sump pump, lights, TV, and select outlets. Additionally, these generators can run most homes comfortably if you practice load management.

9,500W - 18,000W Generators: Suitable for larger homes, homes with well pumps, or situations where you want to power multiple high-wattage appliances simultaneously. Moreover, these units can handle central air conditioning in addition to essential circuits.

Still unsure what size you need? Contact our team for a personalized consultation. We'll review your specific situation and recommend the most cost-effective solution for your home or business.

Statewide Generator Service Coverage

Wolverine Power Systems has four strategically located facilities to ensure rapid response and comprehensive service coverage throughout Michigan, from Detroit's urban core to Grand Rapids' tech hubs, Lansing's government buildings, and Flint's industrial zones. We understand Michigan's unique power challenges—extreme weather, regulatory needs, and 24/7 demands.

Wolverine Power Systems, the generator experts, serves all of Michigan for generator sales and service

Zeeland, MI

West Michigan, HQ
3229 80th Avenue
Zeeland, Michigan 49464

Open Weekdays
7:30am–5:00pm
Phone: 616-879-0040
Services

Full sales, service, parts, and rentals. Authorized Generac generator training center.

Service Area
West Michigan, Grand Rapids Metro, Kalamazoo, Holland, Muskegon, and beyond

Wixom, MI

Southeast Michigan
46968 Liberty Drive
Wixom, Michigan 48393

Open Weekdays
7:30am–5:00pm
Phone: 248-960-0360
Services

Complete generator sales, service, parts, and rentals

Service Area
Detroit Metro, Ann Arbor, Lansing, Flint, Oakland County, Livingston County, and beyond

Gaylord, MI

Northern Michigan
615 Expressway Court,
Gaylord, Michigan 49735

Open Weekdays
7:30am–5:00pm
Phone: 989-705-8000
Services

Complete generator sales, service, parts, and rentals

Service Area
Northern Lower Peninsula, Traverse City, Petoskey, Cadillac, Alpena, Houghton Lake, and beyond

Marquette, MI

Upper Peninsula
308 M553
Marquette, Michigan 49855

Open Weekdays
8:00am–5:00pm
Phone: 906-662-4566
Services

Generator sales & outdoor power equipment sales, service, parts, rentals, small engine repair for UP customers. 

Service Area
Entire Upper Peninsula, Escanaba, Iron Mountain, Sault Ste. Marie, Houghton, and beyond

Frequently Asked Questions About Portable Generators

Ask your generator question here

Most Generac portable generators can run for 8-12 hours on a full tank of gasoline when operating at 50% load. However, it's important to give your generator regular breaks to cool down and perform maintenance. Additionally, proper maintenance schedules ensure your generator remains reliable for years to come. We recommend running your generator for no more than 8-10 hours before refueling and allowing a brief cool-down period.

Absolutely! In fact, Michigan winters are one of the most common times when homeowners need backup power. However, cold weather does present some challenges. Therefore, we recommend storing fuel stabilizer in your gasoline, using synthetic oil for better cold-weather performance, and keeping your generator in a sheltered area between uses. Models with electric start and EFI technology are particularly advantageous in freezing conditions.

Regular maintenance keeps your generator ready when you need it. Specifically, you should check oil levels before each use, change oil every 50-100 hours of operation, replace air filters annually, use fresh fuel or add stabilizer, and run the generator for 15-20 minutes monthly to keep components lubricated. Furthermore, we offer annual maintenance service packages to keep your generator in peak condition.

Each fuel type offers distinct advantages. Gasoline generators are typically less expensive and widely available. Dual-fuel generators (gasoline and propane) offer flexibility—propane stores indefinitely and burns cleaner. Tri-fuel generators add natural gas capability, which is convenient if you have a natural gas line. Consequently, we often recommend dual-fuel or tri-fuel for home backup, as propane and natural gas don't degrade over time like gasoline can.

Portable generators require manual starting and connection, offer flexibility to move to different locations, cost less initially, and work well for occasional outages. Standby generators automatically start when power fails, are permanently installed, cost more upfront, and are ideal for frequent outages or medical needs. Both have their place—many of our customers actually own both types for different situations.

Yes, we work with several financing partners to make backup power affordable for Michigan families. As a result, you can protect your home without a large upfront investment. Contact us to learn about current financing options and promotional offers.

Most transfer switch installations are completed in 4-6 hours, depending on your electrical panel's configuration and the number of circuits you want connected. In most cases, we can schedule installation within 1-2 weeks of your initial consultation. During power outage season, lead times may be longer, so we recommend planning ahead rather than waiting until after a storm hits.

Get Started with Your Portable Generator Today

Don't wait until the next power outage to wish you had backup power. Whether you need a compact inverter for camping trips or a heavy-duty generator for whole-home backup, Wolverine Power Systems has the expertise and inventory to help. Moreover, our Michigan-based team understands the unique challenges our climate presents and can guide you to the perfect solution.

800-485-8068

Questions? We're here to help! Reach out anytime—our team is standing by to discuss your backup power needs and help you find the perfect solution for your Michigan home.
Emergency generator service in Michigan by Wolverine Power Systems. All makes and models, industrial, commercial and residential, natural gas, diesel or propane

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Wolverine Power Systems - Michigan’s Premier Generac Industrial Generator Sales and Service Dealer