Frequently Asked Questions2024-03-08T16:09:39+00:00

Frequently Asked Solar Questions

We take pride in educating our customers. Over the last 25 years, these are the questions our customers ask most often. If you don’t see what you’re looking for here, please give us a call at 512-837-4800 or send us an email at

Answers To Your Burning Solar Questions

HOW DOES SOLAR WORK?2023-06-12T19:38:00+00:00

Sunlight hits your solar panels, producing DC electricity (direct current, like your car runs on, but a whole lot more volts). A component called an inverter converts the DC into AC (alternating current, what your home runs on) and it feeds into your breaker box to power your home. Think of voltage as pressure. The inverter sets the voltage coming from your solar system SLIGHTLY higher than the grid voltage, ensuring your home uses solar first, and the grid second. Excess solar energy is fed onto the grid, generating a credit on your monthly bill. Learn how solar energy works.

I HAVE A 2,500 SQ FT HOME. HOW MANY SOLAR PANELS DO I NEED?2023-06-12T19:56:47+00:00

Home owners often ask, “How many solar panels do I need?” The truth is, the size of your home has very little to do with how much energy you consume. Lifestyle, family size, and your home’s overall efficiency all affect how much energy you end up buying from your utility. We design Solar PV Systems around your annual energy consumption, which is readily available on your utility bills.

Don’t worry. We’re going to walk you through all the calculations and help you understand exactly what size solar system works best for your goals and budget. A reputable contractor is never going to pressure you to buy. We’re no different.

Our process is very consultative. Whether you buy from us or not, you are going to gain a full understanding of how solar works. This is a major purchase involving a technology most people don’t understand. We’ll take the time to inform you exactly how everything comes together so you can make an informed buying decision. That’s the Longhorn Way.

WHAT HAPPENS IF A HAIL STORM HITS?2023-10-03T14:26:03+00:00

Solar panels are incredibly resistant to hail damage. While hail could, and has, damaged solar panels, it’s extremely rare for it to happen. We have over 64,000 solar panels deployed across all our installations today, and less than 100 have been damaged by hail. When it occurs, hail damage to your solar panels is covered under the claim you will already be filing for your damaged roof.

As always, check with your insurance provider before signing anything. While it’s rare that a home owner’s policy to go up when solar is added, every provider is different. The best time to contact your insurance company is when you have a bid and know how much the system costs.

Read more about roof repair and replacement.


Yes. We’re at a point now where most neighborhoods have at least one solar installation in them. If you’re going to be the first one in your neighborhood, we’ll gladly help you navigate the process…we do it all the time. There is a law on the books in Texas to help us out if your HOA gives any pushback.

In 2011, the State of Texas passed HB362, which serves as a set of legal guidelines about solar panels for HOAs, Property Managers, and Developers. We always design systems to meet those guidelines, ensuring your HOA will green-light the project.

We’d be honored to help you with your decision to go solar.


Yes. The Federal Investment Tax Credit (ITC) allows you to deduct 30% of the out-of-pocket cost of your new solar system from your income tax liability for the year you install solar.

The State of Texas has also exempted the value of Solar panel installations from your property tax appraisal (Texas Tax Code Section 11.27).

There are also rebates available from many utilities in Texas. Don’t worry, we’ll walk you through it all, making sure you take advantage of all the savings out there right now.

View Solar Rebates & Incentives

DOES SOLAR ADD VALUE TO MY HOME?2024-02-29T20:04:58+00:00

YES! A few years ago the DOE funded the creation and implementation of a standardized tool for appraisers to use when appraising homes with solar. It’s called PV Value, and there is an actual link right to it on the digital copy of all appraisal forms right now.

In almost every case, the added resale value of a new Solar PV System is higher than the customer’s net cost after rebates and incentives.

Learn how solar can add value to your home.

HOW LONG DO SOLAR PANELS LAST?2023-05-17T18:08:21+00:00

We warranty our installations for 25 years, but most solar installations will last well into the 40+ year range if properly maintained. Read more to answer the burning question, “How long will my solar panels last?”


Not without a fully-charged backup battery. Grid-tied solar systems are required to shut down in the event of a power outage. This is a safety precaution put in place (UL 1741) to protect utility workers from the threat of electrocution. Your home’s solar system produces a lot of electricity – electricity that will travel onto the grid if your home doesn’t consume it.  That same electricity poses a substantial threat.

Outages are usually short, meaning you don’t miss out on much in the way of lost savings, and your system will start producing automatically once power is restored. If you’re interested in seeing the cost of adding a backup battery backup to your new (or existing) solar system, let your account manager know. Reach out to learn more about the benefits of battery backup.


Yes. There are lots of options out there including traditional products like Home Equity Loans, HELOCs, and personal credit lines. We also offer industry-specific finance products that are designed around the solar model to save you money right out of the gate. Most people are looking to be cash flow positive on Day 1 and, in most instances, the products offered inside the solar industry accomplish that goal…which is a big part of why you see SO MANY people going solar right now. Learn how you can finance your solar system.


First, make sure you select a reputable contractor that will stand behind the projections in their proposal. Longhorn Solar provides a 25-Year Performance Guarantee.

If your system is not performing as promised, we will fix the problem and reimburse you for the difference. Our Performance Guarantee is one of the reasons so many people choose Longhorn Solar to be their solar installer.

See Our Warranty

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