Photovoltaic inverter shelf life

How long do solar inverters last?

String inverters generally have standard warranties ranging from five to 10 years, and many have the option to extend to 20 years. Some solar contracts include free maintenance and monitoring throughout the term of the contract, so it is wise to evaluate this when selecting inverters. Microinverters have a longer life.

How long do solar panels last?

While solar panels can last 25 to 30 years or more, inverters generally have a shorter life, due to more rapidly aging components. A common source of failure in inverters is wear and weathering on the capacitors in the inverter. The electrolyte capacitors have a shorter lifetime and age faster than dry components, said Solar Harmonics.

How does climate affect solar inverter lifespan?

The climate is one of the most critical factors impacting solar inverter lifespan since extreme temperatures can cause damage to electronic components. In areas where temperature fluctuations are common, solar inverters may experience thermal stress leading to premature failure.

What is a microinverter & how long does a solar PV system last?

Microinverters are newer technology and have shorter lifespans than other types (typically 10-15 years), but offer greater flexibility when it comes to system design. Another important factor is how well you maintain your solar PV system.

How long do microinverters last?

Microinverters have a longer life. EnergySage said they can often last 25 years – nearly as long as their panel counterparts. Usually, these inverters have a 20 to 25-year standard warranty included.

When should you replace a PV string solar inverter?

15 years ago, replacing PV string solar inverters after operating 5 years was a common situation. These devices usually include a 5 year manufacturer’s warranty at that time. Currently, warranties have increased up to 12 years as a result of an extension on their useful life period.