Are there any differences in the solar panels made by various companies? Are your solar panels better in any way?

Yes, the solar panels made by different companies vary significantly in quality and performance. There are also differences between the companies and their ability to support their products.

Call Mr. Build Solar today at 310-275-9910.
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How heavy are your panels?

Our panels weigh approximately 48 lbs. 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 we guarantee the power output for the first 25 years of operation. 97% of power during the first year; and afterward, the power will not decrease by more than 0.7 percent of the rated power per year. So at year 3 the capacity is guaranteed to be at least 95.6% of the nameplate as opposed to the industry standard guarantee of 90%. And at year 20, it’s still at least 83% as opposed to the industry standard 80%. 

Do these solar panels break easily?

No.  The panels  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 CA is about 4 kW and provides between 40% and 60% of the household’s energy.


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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 Mr build solar.

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.

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.

Can you mount solar panels on the ground?

Yes. There are a variety of ways to ground mount solar PV systems.

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

This depends a lot on where you live. Many states, including California and Oregon, have passed laws that dissolve any HOA rules or CCRs on your deed that effectively prevent you from putting up a solar installation. See state-by-state incentives and regulations for your state.


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

In most cases, yes.Mr Build Solar 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.

Call Mr. Build Solar today at 310-275-9910.
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What is the largest size system that I can buy?

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 30% to 60%.

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?

Mr. Build Solar has financing partners for large commercial installations – our projects team will typically introduce you to the most appropriate for your location and application.

Call Mr. Build Solar today at 310-275-9910 for more information on Financing.