There are several types of solar inverters, including string inverters, microinverters, power optimisers and hybrid inverters. Each type has advantages; the best choice depends on the project requirements.
Solar inverters do the important job of converting the DC electricity generated by the photovoltaic panel to AC electricity. Selecting the right inverter type will optimise performance and long-term efficiency.
1. String inverters, like Marley’s Clearline string inverter, connect multiple solar panels in a series, making them cost-effective and easy to install. This is the most common type of inverter for domestic applications and has been used for decades. However, if one tile is shaded or underperforming, it can reduce the entire string’s output.
2. Microinverters are installed on each solar tile individually. This allows each tile to operate independently, maximising energy production even if some tiles are shaded or underperforming.
3. Power optimisers work similarly to microinverters but are used with a string inverter, enhancing the performance of individual tiles by mitigating the effects of shading and allowing for monitoring without the higher cost of microinverters.
4. Hybrid inverters, such as the ES G2 from Marley, combine inverter technology with battery storage, so excess electricity generated during the day can be saved and used when there is less sunshine or at night.
The best type of solar inverter for a project depends on factors such as budget, installation layout and energy needs. Opting for a complete solar system that includes solar tiles, inverters and other elements, such as the one from Marley, will help ensure compatibility and performance.