The warranty conditions for solar panels can be confusing. Different manufacturers have different interpretations of the length of the warranty period and the circumstances in which the warranty conditions are triggered. For Solarstone products, the warranty terms can be broadly divided into three.

• • 2-year installation warranty. It extends to both the panels and the inverter and starts from the moment the system is handed over to the customer. In the case of an installation guarantee, it is important that all panels behave as intended and as expected, acting as a complete roofing material. As with stone roofs, we cannot guarantee that the roof is completely watertight. In case of extreme spills and heavy rains, water can flow through the joints under the panels. In order to prevent the water from becoming dangerous to the structures in the described situation, a special base film is always installed under the panels and roof tiles, which must direct the secondary water quantities (incl. Condensed water) to the wind box, where the water simply dries out. In the rare case where there is no wind box, the base film is directed and fixed directly to the gutter, which prevents water from getting on the wall and between the structures. The installation warranty covers the location of the inverter and the fixation of the visible part of the cabling on the building structures.
  • 10-year product warranty. This extends to Solarstone panels and means that the panels are durable and generate electricity as a roofing material. The panel frame and module work as a whole, the clamps are functional and have not come loose. Often, the length of the warranty period for inverter manufacturers is also defined as 10 years, coinciding with the product warranty period for panels. For example, the manufacturer of Solaredge inverters offers a 12-year lifetime warranty to the end user.
  • 25-year productivity guarantee. The productivity of solar panels is not constant over time. Typically, the maximum capacity decreases by about 0.5 percent per year. The productivity of Solarstone panels remains at 80% for 25 years after its introduction.

Warranty work is usually responded to within 15 days. We recommend that all our customers inform their insurer when the PV system is completed.