What is VanCharg™?


VanCharg™ is Ashlawn Energy's 32 kW vanadium redox flow battery system designed for safe, stationary, long-duration energy storage. It stores electricity from the grid, solar, wind, or other power sources and delivers that energy when buildings, communities, and energy partners need it most. The system is engineered as a stationary storage solution specifically intended for the reliable storage and delivery of electrical energy.

How does a vanadium redox flow battery work?


A vanadium redox flow battery stores energy in liquid electrolyte held in external tanks. During operation, the electrolyte flows through the battery stack, where electrochemical reactions generate DC power. Inverters then convert that DC power into AC power for building or grid use.

How large is a VanCharg™ system?


Each VanCharg™ battery stack provides 32 kW of power. Multiple stacks can be combined or configured for larger energy storage applications depending on the building load, project goals, available space, and site requirements.

Is VanCharg™ a lithium-ion battery?


No. VanCharg™ is not a lithium-ion battery. It is a vanadium redox flow battery, which stores energy in liquid vanadium electrolyte instead of solid battery cells. It is safe and non-flammable. This makes it well suited for stationary, long-duration energy storage applications.

Is VanCharg™ safe?


VanCharg™ uses a non-flammable vanadium electrolyte, which eliminates fire-risk concerns compared with many legacy Lithium-Ion battery chemistries. The electrolyte is an industrial material and must be handled only by trained personnel because it is corrosive and toxic in certain states. The system includes safety features such as leak detection, smoke monitoring, emergency stop functionality, alarm communication, and service-center alerts.

Does VanCharg™ help with Local Law 97?


VanCharg™ can be part of a broader Local Law 97 compliance strategy by helping buildings manage electricity use, reduce peak demand, support cleaner energy planning, and avoid paying fines. Local Law 97 applies to most New York City buildings over 25,000 square feet, with emissions limits beginning in 2024 and stricter limits taking effect in 2030.

Can VanCharg™ work with solar power?


Yes. VanCharg™ can store energy from solar or other electrical sources and discharge it when needed. The system can be optimized for solar integration through energy management software and smart-meter integration.

Can VanCharg™ be installed indoors or outdoors?


VanCharg™ can be used for indoor or outdoor stationary installations, depending on site conditions, permitting, safety requirements, and approval by the authorities having jurisdiction. Ashlawn Energy evaluates each site before recommending an installation approach.

How much does VanCharg™ cost the building?


Ashlawn Energy, LLC will install VanCharg™ at no cost to the building. By taking advantage of utility and government incentive payments, we are able to offer the battery at no charge.