Fluence

Fluence Energy is a global leader in energy storage technology and digital applications, formed as a joint venture between Siemens and AES Corporation. It designs, delivers, and services utility-scale battery energy storage systems (BESS) and AI-driven software platforms, helping grid operators, utilities, and developers integrate renewables and manage grid stability worldwide.

Fluence offers modular BESS products including its Gridstack and Ultrastack platforms, optimised for long-duration and high-power applications. Its Mosaic AI-powered software platform enables autonomous bidding, forecasting, and optimisation in energy markets. This hardware-agnostic software layer is a key differentiator, allowing customers to maximise revenue from storage assets across multiple market structures.

Fluence operates an asset-light model, partnering with third-party manufacturers rather than owning large factories. It sources battery cells primarily from established Asian suppliers and assembles modular storage products through contract manufacturing, enabling geographic flexibility and rapid scaling without heavy capital expenditure on owned plant infrastructure.

Fluence has deployed or contracted storage projects across 40+ countries, with strong footholds in the US, Australia, UK, Germany, and Chile. In India, Fluence is actively engaging with the growing BESS tender pipeline driven by SECI, NTPC, and state discom procurement, positioning itself as a technology and solutions partner for large-scale grid storage.

Fluence's core technology differentiator is its Mosaic AI platform, which uses machine learning for real-time energy market bidding, asset performance forecasting, and automated dispatch optimisation. On the hardware side, modular product design reduces site integration complexity and commissioning time. Remote monitoring and digital twin capabilities further reduce operational costs and improve asset uptime across its global deployed fleet.

Fluence is among the top three global BESS integrators by cumulative deployed capacity, distinguished by its software-first philosophy. While facing intense hardware price competition from Chinese OEMs, its AI platform and multinational project execution track record position it as a premium, bankable choice for complex grid-scale storage projects.