Frequently Asked Questions

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What modules do you install?

Our main manufacturer is Solarworld. They manufacture the modules right here in the United States. They have a long history of module manufacturing which we believe is an important factor for using their modules. Although our preferred manufacturer is Solar World, we also work with a number of other suppliers of modules that can be very effective in the creation of your homes Solar system. If you have any questions about manufacturers, please contact us directly to discuss.

How heavy are your panels?

A typical panel with wattage of 220 to 270 watts weighs approximately 45lbs each, and can typically be mounted with less than 4 lb/sf roof loading.

How long do they last? Are they guaranteed?"

Solar panels are designed to last for more than 30 years and many manufacturers guarantee the power output for the first 25 years of operation. In fact or preferred manufacturers do have very good guarantees that will compliment the life of the solar unit that we install. The warranties and guarantees are a very important component of the types of products EPGE recommends for the solar unit that will be recommended in our installed systems. We have to feel 100% confident in he equipment that we use for your new system. If we don’t feel 100% confident that the equipment will perform as it needs to, it won’t be a part of our recommendation.

Do these solar panels break easily?"

No. Most modules are made from tempered, shatterproof glass and are designed to withstand up to 1” diameter hail strikes at over 50 mph as well as wind and snow loads up to 112 psf.

How many do I need for my house?

This depends on how large your energy bills are. Most residential installations are between 2 kW and 10 KW, the average installation size in Colorado is about 4 kW and provides between 40% and 60% of the household’s energy.

How much energy can it produce?

Energy production will vary based on the size of the system and its location. For the best estimate of what your home can produce, request a free solar consultation from a us.

How much space does this require on a roof?

Solar panels are modular by nature, so your system can be sized to fit your roof as well as your electric bill. As a rule of thumb, each kW of PV will take up about 100 square feet of roof space.

Can I install a solar system myself?

While technically possible, we do not recommend that homeowners install their own systems. Most city and state building codes require a licensed electrician to connect the system to the grid and a trained solar installer can help to ensure that your system is well designed and qualifies for the maximum possible rebates and other incentives.

Do they work on cloudy / foggy/ rainy days?

Yes, you will get some power on cloudy days, but it will not be the maximum output.

Are these systems difficult to operate?

No. Once installed, solar PV systems are fully automatic. To add a level of “piece of mind” EPGE is monitoring your system 24 hours a day – 7 days a week. We will notice any changes in the performance of your system the minute that it occurs and we will be on site shortly afterwards to make any adjustment that are necessary to keep the system functioning at its peak performance.

What kind of maintenance is required?

You may wish to clean the solar panels if they become dirty, but no other regular maintenance is necessary. Because your system is being monitored 24/7 any fluctuations in the systems performance are recognized and the team from EPGE will make any necessary adjustments to keep the system functioning at top performance.

Can you mount solar panels on the ground?

Yes. There are a variety of ways to ground mount solar PV systems. In fact, in our gallery pages (link to gallery pages), you will see many different configurations and system setups that include ground mount systems. Give us a call for more information.

Does it take more energy to manufacture these solar panels than they produce in their lifetime?

No. In a typical installation using Solarworld modules, “energy payback” (produce more energy than was required to manufacture it) occurs within 1 to 2 years.

Can my city (or HOA, or neighbors) prohibit me from putting solar panels on my roof?

No. Colorado has passed laws that dissolve any HOA rules or CCRs on your deed that effectively prevent you from putting up a solar installation. Click here to see what you can do.

Do I need a city permit to install a solar panels on my house?

Yes. Usually a building and electrical permits. Your contractor/installer will usually take care of this for you.

Will the system provide me back-up power if the utility grid power goes out?

Typically, no. Most solar PV installations are grid connected and have no batteries to store energy or appropriate switches to legally operate while the grid is down. While battery banks and switchable inverters are available, these add to the cost of your system and batteries require significant maintenance.

What is the largest size system that I can buy?

The maximum size of system you can install will depend on the amount of appropriate roof and/or ground space available and how much you want to spend. Most of our installations are sized for optimum savings, rather than maximum size and most incentives will only cover up to the amount of electricity your home or business actually uses on an annualized basis

How expensive is a solar installation?

The cost of a solar installation depends on many variables, including the application, the site characteristics and the available incentives. Generally, our solar PV systems are designed to provide a substantial net savings in energy costs over their lifetime.

How much money will it save me?

Actual savings varies based on system size, location, and your electric rate structure. A typical solar PV system is designed to reduce your energy bill by 50% to 80%.

What is the financial Pay-Back period for a solar PV system?

Actual payback varies depending on the system installed cost, location, size, and electrical rate structure. Typical payback periods are between 7 and 14 years for residential systems and 5 to 12 years for commercial systems.

Are there still any rebates to help pay for them?

Yes. See our incentives and rebates information for options available in your area.

Can you provide financing to help make these systems more affordable?

Yes. Give us a call for details on many ways to make your system more affordable. This includes commercial, non-profit and residential customers.

Are your solar panels cheaper, or more expensive, than others?

We have access to many manufacturers. Some are more and others are less. The price difference these days is pretty small, so EPGE uses the best panels for the price and always looks for American made panels first.