Behind-the-meter battery energy storage systems (BESS) could form a distinct industrial market in Southeast Europe, with factories financing systems against measurable savings from their own electricity use rather than speculative wholesale-market revenue. This model bases project value on a company’s load and avoided costs, not primarily on income from wholesale trading. It could let industrial customers capture storage value without entering power markets as traders.
Romania’s distributed adoption offers an example of how self-consumption economics and policy support can accelerate deployment: by 31 May 2026, 114,780 prosumers had battery storage, around one-third of the country’s prosumers. Most of those installations are not industrial-scale assets, but the uptake shows that behind-the-meter storage can spread alongside better-known grid-scale projects.
For factories, the primary case is avoiding electricity costs. Batteries can reduce demand peaks, absorb on-site solar generation, lower imbalance charges and maintain critical loads during short disturbances. They can also shift purchases away from the most expensive wholesale hours. Peak-demand reduction, self-consumption, backup and imbalance management can be monetised without a factory becoming a power trader.
Savings can be easier to forecast than long-term merchant arbitrage because they are tied to the industrial site’s own load profile. Financing depends on the host’s creditworthiness, whether savings can be measured and whether the battery is properly sized to site demand. Where those conditions are met, a system can be financed as an energy-efficiency and resilience asset, with funding assessed against customer savings rather than speculative wholesale returns.
Montenegro’s low-carbon strategy work points to greater deployment of industrial prosumers. One planning stream anticipates support for 60 MW of industrial prosumer capacity. Similar programmes across Southeast Europe could create a customer base for commercial and industrial batteries, with project bankability depending on the host, measurable savings and system sizing.