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.
Market data
Live Baltic electricity data, balancing prices, day-ahead spot, system frequency. Free, CC-BY-4.0, refreshed hourly.
Market dashboard
Every dataset on one live screen.
Blog
Field notes from the Volton team, market moves, dispatch deep dives, product updates.
Glossary
Every market term, defined in plain language.
Savings calculator
What would your year have cost? Compare fixed, spot and spot + Volton on real Nord Pool prices.
Balancing market guide
How aFRR, mFRR and the reserve markets actually work.
Public Data API
The same data, machine-readable. Build on it.
Today on the market
| Date | Avg | Min | Max | Samples |
|---|---|---|---|---|
| 14,9 EUR/MWh | 1,9 | 90,5 | 96 | |
| 27,3 EUR/MWh | 4,0 | 116,6 | 96 |
Source: Nord Pool / ENTSO-E Transparency Platform via Volton, CC-BY-4.0. · Updated · Full chart and methodology →
Latest from the blog
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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.