Stay Powered Through Montana Winters — GenerLink Transfer Switch

Yes — GenerLink is approved by many utilities serving Montana homeowners, including NorthWestern Energy. Utility approval is required before installation, and GenerLink works directly with utilities across the state to maintain up-to-date approval status. Each utility has its own approval process, which may involve a simple notification or a brief inspection. Check the utility section above to see the specific approval status and instructions for your provider.

Not sure which guide is right for you? Download our free Homeowner's FAQ Reference Guide for a complete breakdown of the approval process.

GenerLink installation in Montana typically takes under 30 minutes when performed by a licensed electrician or utility-approved installer. Unlike traditional transfer switches that require rewiring your electrical panel, GenerLink connects directly to your utility meter socket — no internal wiring changes needed. Your installer will remove the meter, slide GenerLink into place, replace the meter, and connect your generator inlet. Most Montana homeowners have their system fully operational the same day. Always use a licensed electrician familiar with your local Montana codes and permit requirements.

The right generator size for a Montana home depends on which appliances you need to power during an outage. Montana homeowners dealing with extreme winter blizzards should prioritize essential loads like HVAC, refrigerator, sump pump, and medical equipment. A 5,000–8,000 watt generator handles most essential loads for an average home, while larger homes or those with electric HVAC may need 10,000+ watts. GenerLink's MA23 model supports up to 7,500 running watts (30A) and the MA24 supports up to 10,000 running watts (40A).

Get the exact answer for your home: Our free Generator Selection Guide walks you through calculating your load needs step by step.

Permit requirements vary by county and municipality in Montana. In most cases, a licensed electrician handling the installation will obtain the necessary permits as part of the job. Some Montana utilities require a simple notification rather than a formal permit, while others may require an inspection. We recommend contacting your local building department and your utility company before installation. The installers listed on this page are familiar with Montana permit requirements and can guide you through the process.

With GenerLink and a properly sized generator, Montana homeowners can power the appliances that matter most during extreme winter blizzards outages. Essential loads typically include refrigerator (400–800W), window AC or furnace fan (500–1,500W), lights (200–400W), phone chargers and electronics (200W), and sump pump (800–1,500W). Higher-capacity models like the MA24-S with surge protection can handle starting loads from central AC units and well pumps. The key is calculating your total load before choosing a generator.

Know exactly what you can run: Download our free Appliance Load Management Guide — it includes a complete load calculation worksheet.