Joining the frequency markets — earn from your asset’s flexibility, every second.

How do I join the frequency markets?

Get a quote, sign the standard balancing-services agreement, and let Volton handle Elering prequalification — typically under seven days. You don't become a BSP yourself; you join Volton's Reserve Providing Group, which already meets Elering's 1 MW minimum. After connection, your asset bids the next day and earns from the first cleared interval. There is no upfront fee — Volton takes a transparent share of what the market pays.

How much can I earn on the frequency markets?

A 50 kWh home battery typically earns €40–120 per month from frequency reserves alone, depending on availability hours and capacity-market clearing prices. Industrial assets (1+ MW) earn €100–300 per MW per day across capacity + activation revenue, again depending on the product mix and how often the system actually calls them. Volton publishes the actual cleared mFRR and aFRR capacity prices weekly, so you can verify what you would have earned before signing.

Why are frequency markets needed?

The grid must stay perfectly balanced — every second, supply must equal demand. When real production or consumption diverges from forecast, frequency drifts off 50 Hz. Frequency markets reward assets that help restore that balance in real time, by absorbing surplus energy or feeding the grid when there’s a shortage. Since Estonia synchronised with Continental Europe in February 2025, the Baltic states procure frequency reserves through their own joint market run by Elering, AST and Litgrid.

How do these markets work?

Frequency markets run alongside the day-ahead and intraday electricity markets. The TSO (Elering) procures three reserve products at different timescales: FCR responds within seconds, aFRR within five minutes, mFRR within fifteen. The Baltic Balancing Capacity Market (BBCM) co-optimises FCR and mFRR (with aFRR added in April 2025) — providers submit bids each morning for next-day delivery, and the platform allocates capacity to whichever product clears most efficiently across the three Baltic zones.

Who can participate?

Any grid-connected asset that can quickly change its output or consumption: batteries (BESS), controllable industrial loads, heat pumps, EV chargers, solar parks and wind farms with active control. Standalone assets need at least 1 MW of qualifying capacity, so smaller assets join via aggregators. Volton aggregates dozens of sites into Reserve Providing Groups that meet Elering’s thresholds — meaning a 50 kW home battery or a 200 kW industrial load can earn frequency-market revenue without ever going through prequalification on its own.

How are providers paid?

Two revenue streams. The capacity payment is a fixed hourly rate for being available — paid for every hour you’re qualified, even if the system never calls you. The energy payment is paid each time the TSO actually activates your asset, at a price set by the activation auction. Combined, frequency reserves can earn €100–300 per MW per day depending on the product, market conditions and how much your asset is activated. Volton invoices the markets monthly, deducts a transparent share, and pays the rest into your account.