
There are many choices for a solar company that installs solar panels. SunPower is one example of a company that offers a warranty for 25 years. Sunrun is another company that offers price-match or loans. You can also purchase solar panels online from many other retailers.
SunPower offers a 25 year warranty
SunPower, a San Jose California manufacturer of solar panel, is now offering a warranty on all new solar panels bought in the U.S. The company says that the new warranty will ensure power and product performance for 25 years, which is much longer than industry standard. The panels will have a minimum output of 85 percent for the first five and an average output of 87% the following 20 years.
Tesla offers a warranty of 25 years
Tesla solar panels are covered by a 25-year performance guarantee. This guarantees that panels will run at 80 percent for 25 years. Tesla also offers a comprehensive warranty, covering all parts of the system, including the Powerwall and inverters. The company also offers customer support. This warranty is much more extensive than other solar panel warranties but there are still some caveats.

Green Power Technology offers loans
A solar panel loan is a great way to finance your solar panel purchase. You can use the loan alone or with other financing options such as a personal loan, mortgage, or home improvement loan. The amount of the loan as well as the repayment term will be determined by your financial situation, credit history, and income. Lenders may extend loans for up to 30 year.
Sunrun guarantees a price match
Sunrun solar panels come with a 10-year bumper-to-bumper guarantee. The company offers monitoring and maintenance services. The annual lease fee is subject to change depending on the energy cost in your locality. However, the average increase in this amount is less than 2%. A lease is a great way to save money on your utility bills, even if it's not possible to buy solar panels.
Tongwei Solar
Tongwei Solar is one of the world's leading solar panel companies. Their impressive list of awards and honors includes the Leading Enterprise Award, as well as a host of industry firsts. The company is dedicated to the development of the most efficient solar cell designs. Their highly skilled research teams have made panels that have been distributed worldwide.
LONGI Solar
LONGI, a manufacturer and exporter of solar panels, has a global presence. LONGI's Malaysian manufacturing plant can produce 500 megawatts solar panels. In addition to the Malaysian plant, Longi also has offices and warehouses in six countries.

Zhongli/Talesun
Zhongli/Talesun is one of the most popular and respected manufacturers of solar panels. This 30-year-old Chinese company has a reputation for producing quality solar modules that will last for decades. Listed on the Bloomberg Tier One list, it has achieved significant success in solar energy.