
There are many options for a solar panel installation company. For example, you can opt for one that offers a 25-year warranty, such as SunPower. Sunrun, for example, offers loans and price-match guarantees. Solar panels can also be purchased from other online retailers.
SunPower offers a warranty of 25 years
SunPower, a San Jose California-based manufacturer and exporter of solar panels, has extended its warranty to all new panels made in the U.S. The new warranty, which will provide power and product performance for 25-years, is more than any industry standard. The panels will be guaranteed to produce minimum 85% peak output over the first five-years and minimum 87% over the next 20 year.
Tesla offers a 25 year warranty
Tesla solar panels come with a 25-year performance warranty, guaranteeing the panels will operate at 80 percent of their capacity for 25 years. Tesla offers a comprehensive warranty which covers all parts of its system, including the Powerwall or inverters. Lastly, the company offers customer support for the panels. While this warranty is more comprehensive than many solar panel warranties, there are some caveats.

Green Power Technology offers loans
A solar panel loan is a great way to finance your solar panel purchase. The loan can be used alone, or in combination with other types of financing, such as a mortgage, personal loan, or home improvement loan. The amount and repayment period of the loan will depend on your income, credit rating, and personal financial situation. Lenders may extend loans for up to 30 year.
Sunrun offers a price match guarantee
Sunrun provides a 10-year warranty on their solar panels. The company also provides maintenance and monitoring services. The cost of energy in your region will affect the annual lease fee. However, on average, it is only 2%. Even if your budget doesn't allow you to buy solar panel outright, leasing can help you cut down on your utility bills.
Tongwei Solar
Tongwei Solar, one of the most prominent solar panel companies in the world, is Tongwei Solar. They have a long list of impressive awards and accolades to their name, including the prestigious Leading Enterprise Award and a number of industry firsts. Their highly skilled research and development team have created panels that are sold around the world. They are dedicated to creating the best solar cells designs.
LONGI Solar
LONGI is a manufacturer of solar panels with a global presence. Its manufacturing facility in Malaysia is capable of producing 500 megawatts of solar panels. Longi has offices and warehouses throughout six countries, in addition to its Malaysian facility.

Zhongli/Talesun
Zhongli/Talesun is a well-respected manufacturer of solar panels. This Chinese company has been producing high-quality solar panels for over 30 years. It is a Bloomberg Tier One listed company that has seen significant success in the field of solar energy.