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A: Energy storage systems store electricity generated from solar, grid to meet any electricity usage demand. They provide efficient, cost-effective power solutions for customers with power outages, store excess energy to offset high power costs during peak hours, and supplement power from the utility grid.

A: Energy Storage System (ESS): A group of batteries combined with power conversion devices (such as inverters and charge controllers) that can store energy for use when needed. Usually includes management and monitoring software for utility integration and user control.

A: An inverter/charger that manages the power conversion of DC power from solar or batteries and converts it to AC power to support electrical loads. Hybrid inverters support battery charging and discharging as well as grid interconnection. Many hybrid inverters integrate an MPPT charge controller for solar optimization.

A: In general, we need to know the customer’s power requirements first to match the right battery module, inverter and solar panel.

Systems can be properly sized to meet the customer’s electrical needs. By working with a qualified distributor or installer, customers can make an informed decision about their energy consumption and the solution that is right for them.

A: A Battery Energy Storage System (BESS) is an electrochemical device that charges (or collects energy) from the grid or from on-site power generation (such as solar PV) and then releases that energy when needed to provide electricity or other grid services.

This can allow the use of less grid energy during peak hours, which is typically charged at a more expensive price, and recharge the battery from the grid or from your own on-site power generation system when energy prices are much lower.

A: Battery storage does not emit localized pollution that is harmful to human health. In fact, battery storage systems can reduce the demand for these resources, thereby reducing air pollution from conventional power plants or emergency backup generators that burn gasoline, diesel, propane or natural gas.

A: Our hybrid battery storage systems are compatible with residential solar PV systems from 3kW to 50kW and with commercial energy storage systems from 30KW to 500KW, meaning that our hybrid inverters and battery modules can be used with multiple rooftop installations.

A: Our hybrid battery storage system is compatible with all solar panels, making it ideal for retrofit applications. We can replace your aging inverter with our state-of-the-art hybrid that will work with the solar unit of your existing solar PV system.

A: Yes, at the end of battery life, we can replace just your lithium-ion battery module without replacing the inverter, etc. Designed to simplify service and future upgrades.

A: Every project is different. There are a range of factors that can affect the exact size of the equipment, each of which needs to be factored into the exact design. Please contact one of our experts at weli@welicharger.com and we will provide you with a one-on-one solution. If you are in the European region, we can have a local team at your disposal.