Generally speaking, the service life of qualified solar racking is about 20-25 years. Exactly how long to use depends on three factors: material, installation environment and routine maintenance.
On average, portable solar panels have a lifespan of 20-25 years. However, it's worth noting that their efficiency decreases by around 20% during this time period, which means they will continue to generate energy, albeit at a lower rate.
Estimate the ideal spacing between rows of solar panels to minimize shading and maximize efficiency based on latitude, tilt, and panel height. Formula: Spacing = Height / tan (Solar Altitude).
Lease (and PPA) projects are the only solar installations that still qualify for the 30% federal tax credit after 2025—and competitive providers should pass those savings to you as lower monthly rates.
Most solar structures utilize cold roll-formed galvanized steel (GI, CR, or HR) purlins due to their corrosion resistance and high yield strength — typically between 240 MPa and 350 MPa. These materials provide longevity, crucial for solar systems expected to perform efficiently.