Field notes, tools, and research from the Volton team.
Everything we publish about how the Estonian and wider Nordic energy markets actually work — from short market reads to deep dispatch analyses and forecasting tools.
Blog
Field notes from the Volton team — market moves, dispatch deep dives, and product updates.
Market data
Live Estonian and Baltic electricity-market data — balancing prices, day-ahead spot, system frequency. Free, CC-BY-4.0, refreshed hourly.
Glossary
Definitions of the terms used across Volton — markets, balancing services, smart-home flexibility and the contracts that hold it all together.
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How much does a solar park earn on the frequency markets? Real numbers from 10 MW
A 10 × 1 MWp solar portfolio earned €46,700 on the frequency markets in 2.5 months — and 77% of it came from the capacity market. See the real split and what it means per MW.
Frequency markets: get paid to keep the grid at 50 Hz.
Volton qualifies your battery, solar park or industrial load into FCR, aFRR and mFRR reserves and trades on your behalf. You keep the bulk of the revenue.
Solar parks and the frequency markets: the money is in capacity
A solar park earns on the frequency markets mainly from the capacity market — payment for keeping a reserve available, not for activation. And it qualifies without a battery. Here is how it works and how Volton takes a park to market.
The cheapest battery in your home is the boiler
A 100-150L hot-water tank stores 4-8 kWh as heat — about the same capacity as a small home battery. A €50 smart relay on the existing tank pays itself back within the first heating season.