Skip to content
Alpha Devraj ESS

Solutions — by configuration

How does wind + battery storage (wind + BESS) work?

A wind + BESS system adds battery storage to a wind plant so variable, gust-driven generation becomes firm, schedulable power. The battery absorbs short-term fluctuations and shifts night-heavy wind output into daytime demand. Alpha Devraj ESS engineers wind + storage systems for IPPs, C&I buyers and grid applications in India.

How it works

Watch it run.

19:00Lull — battery filling the gapWind output 6%
Wind plantPCSALPHA DEVRAJ75%DISCHARGINGBESSGridScheduled delivery

The wind problem storage solves

Wind is the cheapest utility-scale energy in many Indian states, but it is variable on every timescale — seconds, hours and seasons. Grid operators increasingly require scheduled, penalty-backed delivery. A battery absorbs the fluctuation: it smooths second-to-minute variation, stores excess night generation, and lets the combined plant commit to a delivery schedule with confidence.

Deviation penalties and scheduling

Under DSM (deviation settlement mechanism) regimes, forecast errors cost money. Storage turns a probabilistic forecast into a firm schedule: the battery covers shortfalls and absorbs surpluses, reducing deviation penalties and improving the plant’s effective realisation per unit.

What we deliver

Storage sized against your wind resource data and scheduling obligations, integrated at the plant or pooling substation, with an EMS that runs forecast-following dispatch. We support both retrofit on operating wind farms and greenfield wind + BESS design.

Common questions

How much storage does a wind farm need?

It depends on the variability of the site’s wind resource and the firmness required — a plant bidding round-the-clock supply needs far more than one reducing DSM penalties. We size from actual generation data and the specific scheduling obligation.

Let's talk storage

Send us your load, or your tender.

We'll model it — and tell you straight whether storage is the right call.