Transfer Switches and Electrical Service in Evergreen, Colorado
This page provides general educational information based on public data about housing in Evergreen. Every home is different. The information here reflects what was typical when homes were originally built, not necessarily what is in your home today. Nothing on this page should be taken as a diagnosis or recommendation for your specific property. The only way to know the condition of your home's electrical system is a professional inspection. Call (303) 775-3221 or request a free estimate.
When the power goes out in Evergreen, it can stay out. A generator without a transfer switch is illegal and dangerous. That makes the transfer switch the most relevant electrical service up here.
Evergreen is a mountain community in unincorporated Jefferson County, spread across steep terrain at around 7,200 feet. Power outages from storms, high winds, ice loading on lines, and fallen trees are more common here than in the metro flatlands. Xcel Energy can also de-energize overhead lines during high fire-risk conditions to prevent arcing from igniting dry vegetation. A manual transfer switch is the legal and safe way to run a generator during these outages.
Transfer Switches
A manual transfer switch isolates your home from the grid before generator power flows in. Without one, running a generator connected to your panel sends power back out through the utility lines. This is called backfeeding. It's illegal in Colorado, it's dangerous to utility line workers, and it can damage your equipment when grid power returns unexpectedly.
A transfer switch lets you select which circuits the generator powers: furnace, refrigerator, well pump, lights, a few outlets. The generator runs those circuits while the rest of the house stays off. When grid power returns, you switch back and disconnect the generator.
What That Means for Your Home
Evergreen's homes span a wide range of ages. Some date to the 1950s and 1960s as mountain cabins. The bulk of development happened in the 1970s and 1980s. Newer construction continues on remaining lots.
The panel situation
Homes from the 1960s and 1970s may have FPE, Zinsco, or split-bus panels. Homes from the 1980s may have Challenger panels. All of these have documented concerns. Homes built since the 1990s generally have panels from reputable manufacturers.
The capacity gap
Mountain homes often have higher electrical demands than their metro equivalents: well pumps, septic systems, electric heating in some cases, and longer distances from the transformer. A 100-amp panel from the 1970s may not handle modern loads. A load calculation tells you where you stand.
Electrical Code and Permits
Evergreen is unincorporated Jefferson County. Colorado enforces the 2023 National Electrical Code statewide. Electrical permits go through the Jefferson County Building Division. Xcel Energy is the utility provider.
What's changed since your home was built
| NEC Edition | Key Changes | What It Means |
|---|---|---|
| NEC 2023 | Whole-home surge protection required. Expanded AFCI/GFCI. Emergency disconnect required at exterior. | New panels must include surge protection, arc-fault and ground-fault breakers where required, and a way for first responders to cut power from outside. |
| NEC 2020 | GFCI expanded to kitchens and laundry. Outdoor emergency disconnect added. | More wet-area protection. Firefighters can kill power without entering the home. |
| NEC 2017 | AFCI expanded to nearly all living spaces. | Arc-fault protection moved beyond bedrooms to cover most of the house. |
| NEC 2014 | AFCI required in kitchens, laundry, and bedrooms. | Major expansion of fire-prevention technology in branch circuits. |
| Pre-2014 | Any code edition before 2014. | No AFCI, no GFCI, no surge protection, no emergency disconnect. |
When electrical work is performed, the new work has to meet the current 2023 standard.
Permits and inspections
Transfer switch installations, panel replacements, and service upgrades all require a Jefferson County electrical permit and a final inspection. We handle all of that.
Insurance and Your Panel
Colorado's insurance market has tightened since the 2021 Marshall Fire. In mountain communities near the wildland-urban interface, carriers evaluate the electrical system alongside wildfire exposure and access conditions.
Some carriers specifically ask about FPE Stab-Lok and Zinsco panels on their applications. Other panels may draw attention based on age and condition. Replacing an aging panel before it becomes an issue gives you the most control.
Common Electrical Issues in Evergreen
No transfer switch with a generator
Many Evergreen homeowners have generators but no transfer switch. Running a generator without one is backfeeding: illegal, dangerous, and capable of damaging equipment. A transfer switch installation is the fix.
Aging panels in 1970s homes
Homes from the 1970s may have FPE or Zinsco panels with documented defect rates. These panels can't accept modern AFCI or GFCI breakers. A panel replacement brings the home up to current safety standards.
Challenger panels in 1980s homes
Homes from the 1980s may have Challenger panels. Early models share the Zinsco bus bar design. Later models are aging out of their expected service life. These panels come up during home inspections and can affect insurance.
Kittredge and Idledale
Kittredge and Idledale are small communities along Bear Creek between Morrison and Evergreen. Kittredge has about 70% of homes built before 1980. Idledale has about 84% built before 1980, with a median year built around 1958. Both communities face the same outage and panel issues as Evergreen. Permits go through Jefferson County. We serve both.
Capacity for mountain living
Well pumps, septic systems, electric heat, and longer transformer distances all add to the load. A service upgrade from 100 to 200 amps gives a home room for current and future demands.
Frequently Asked Questions
Why do Evergreen homes need transfer switches?
Evergreen is in a mountain area where power outages from storms, high winds, and ice are more frequent than in the metro flatlands. Xcel Energy can also de-energize lines during high fire-risk conditions. A manual transfer switch lets you run a generator safely without backfeeding the grid. Backfeeding is illegal in Colorado and dangerous to utility line workers.
How much does a transfer switch cost in Evergreen?
It depends on the setup. A transfer switch for essential circuits (furnace, fridge, well pump, lights) is a different scope than a whole-house solution. We provide free on-site estimates. Our minimum project size is $2,000.
Do I need a permit for a transfer switch in Evergreen?
Yes. Evergreen is unincorporated Jefferson County. Electrical permits go through Jefferson County Building Division. We handle the permit and the inspection.
Could my panel affect my homeowners insurance in Evergreen?
It can. In mountain communities near the wildland-urban interface, carriers evaluate the overall condition of the electrical system alongside wildfire exposure. Some carriers specifically ask about FPE and Zinsco panels on their applications. Replacing an aging panel before it becomes an issue gives you the most options.
Do you serve Kittredge and Idledale?
Yes. Kittredge and Idledale are small communities along Bear Creek between Morrison and Evergreen. Both have older homes on similar electrical systems. Permits go through Jefferson County. We serve both communities.
Do Evergreen homes also need panel replacements?
Some do. Homes from the 1960s-70s may have FPE, Zinsco, or other aging panels. Homes from the 1980s may have Challenger panels. But the transfer switch is often the more pressing need in Evergreen because of the outage risk. A panel evaluation tells you where you stand on both.
Get It Checked
Whether you need a transfer switch, a panel evaluation, or both, the first step is the same: we come out, look at what you have, and tell you what makes sense.
There's no charge for the estimate. Learn more about what a service change involves.
Sources
- U.S. Consumer Product Safety Commission. "Commission Closes Investigation Of FPE Circuit Breakers And Provides Safety Information For Consumers." 1983.
- Dr. Jesse Aronstein, P.E. Independent testing of FPE Stab-Lok and Zinsco circuit breakers per UL 489 standard.
- Richmond National Insurance Company. Small Habitational Supplemental Application (RNGL_APP_004_SBGC).
- Jefferson County Building Division. Electrical permit requirements.
This page provides general educational information. Every home is different. Nothing on this page should be taken as a diagnosis or recommendation for your specific property. The only way to know the condition of your home's electrical system is a professional inspection. Dunlap Electric Company, LLC · Evergreen, Colorado · Electrical Contractor License #8223. Jesse Dunlap, Colorado Licensed Master Electrician, in the trade since 1998.
Need a Transfer Switch or Panel Inspection in Evergreen?
We'll come out and tell you what you've got. No charge for the estimate.