Energy storage systems and inverters

Why are inverters important for energy storage projects?

Inverters also serve as the brains of an energy storage project, managing, optimizing and driving project performance and financial returns. The difference between central and string inverters, while simple, has profound implications for long-term project design, performance and safety.

Are string inverters good for energy storage?

Typically, central inverters have been the standard for commercial and utility-scale energy storage applications. But that is shifting as costs drop and developers, EPCs, owners and operators discover more about the performance benefits of string inverters. The solar PV market embraced string inverters first, but energy storage is gaining momentum.

What does an inverter do?

An inverter turns the direct current (DC) output of a battery or solar panel into alternating current (AC) for use in homes and businesses or to feed directly into the electrical grid. Inverters also serve as the brains of an energy storage project, managing, optimizing and driving project performance and financial returns.

Why do we need a battery inverter?

As the energy storage market becomes more competitive, so do demands for innovative, cost-effective inverter technologies. One response is to turn to off-the-shelf components, such as placing batteries in smaller enclosures along with associated air-conditioning and fire-protection systems.

Should you use a solar inverter?

Simple Solar Systems: Use an inverter for small-scale solar PV systems without energy storage. Backup Power: In residential UPS or emergency backup where power only flows one way. Cost-Sensitive Projects: If the goal is just DC to AC conversion, inverters are cheaper and simpler.

What is a string inverter?

As their name implies, central inverters centralize the project’s energy through one conduit. String inverters use a distributed architecture, breaking the system down into smaller, multiple inverters and usually more than one DC bus. The concept behind string inverters should be familiar.