Battery storage is becoming an increasingly important part of Nordic power markets, but the way these assets generate value is changing rapidly.
Montel’s Danish Power Market Outlook 2026 highlights how battery revenues are shifting away from traditional ancillary services and increasingly towards intraday and wholesale energy trading.
That transition is already reshaping hiring across Nordic energy trading markets, particularly in Denmark, Sweden and wider cross-border power trading hubs.
From balancing support to active market participation
Historically, many battery projects generated revenues through:
- Frequency response services
- Balancing market participation
- Relatively stable contracted income streams
That model is becoming more competitive and, in some areas, increasingly saturated.
At the same time, Nordic power markets are becoming more volatile and more dependent on short-term optimisation.
As a result:
- Revenues are shifting towards day-ahead and intraday trading
- Trading capability is becoming more commercially important
- Battery optimisation strategies are becoming significantly more sophisticated
Battery storage is no longer simply a flexibility asset. Increasingly, it is operating as a trading asset embedded within highly dynamic Nordic power markets.
Why the Nordics matter
The Nordic region presents a particularly interesting environment for battery optimisation because of its market structure.
The report highlights several factors driving volatility across Nordic markets:
- High renewable penetration
- Cross-border interconnector flows
- Hydrological pressures
- Nuclear maintenance and outages
- Balancing market reforms
- Increased local activation requirements in Danish bidding zones
Denmark sits at the centre of many of these dynamics. As a bridge between Nordic hydro systems and continental European power markets, Danish pricing is increasingly influenced by both local renewable generation and wider European market conditions.
That creates significant short-term volatility — exactly the type of environment batteries are designed to monetise.
Volatility remains the foundation of battery revenues
At the core of battery economics is still volatility.
Battery systems monetise price spreads by:
- Charging during low or negative price periods
- Discharging during higher-priced periods
- Capturing intraday volatility created by forecast changes and balancing requirements
Montel’s analysis highlights how intraday liquidity increasingly concentrates in the final hours before delivery, where price movements become sharper as new wind, demand and balancing information enters the market.
This is particularly relevant in Nordic markets, where renewable variability and balancing reforms have increased short-term price swings materially over the past year.
Nordic balancing markets are becoming structurally more volatile
One of the most important themes in the report is the transformation of Nordic balancing markets.
Recent reforms, including mFRR activation changes, flow-based market coupling, 15-minute settlement and integration with Picasso, have fundamentally altered imbalance pricing behaviour.
The result is a market with:
- Greater imbalance volatility
- Lower correlation between bidding zones
- More localised pricing behaviour
- Increased exposure to real-time system conditions
In some Nordic bidding zones, imbalance prices have reached extreme levels of +10,000 to -10,000 EUR/MWh.
For battery operators, these conditions create both opportunity and risk.
The commercial edge increasingly comes from being able to forecast system conditions and respond faster than the wider market.
Why trading capability is becoming critical
As revenues shift into energy markets, battery operators are increasingly functioning like trading desks.
This is driving demand for:
- Intraday traders with storage optimisation experience
- Portfolio managers managing flexible assets
- Traders with both physical and financial market understanding
- Profiles with experience across Nordic and continental European power markets
The report also notes that some battery revenues can be generated without physical cycling at all, purely through market positioning.
That reinforces how financial optimisation capability is becoming just as important as engineering capability.
The growing importance of quants and forecasting specialists
Alongside trading, advanced forecasting and modelling capability is becoming increasingly valuable.
Battery optimisation now requires:
- High-frequency forecasting
- Intraday price modelling
- Scenario analysis
- Cross-border flow modelling
- Renewable generation forecasting
- Real-time balancing analysis
The report repeatedly highlights forecasting as a competitive edge in Nordic balancing and intraday markets.
As a result, demand is increasing for:
- Energy market quants
- Optimisation specialists
- Algorithmic trading profiles
- Data scientists with power market expertise
- Analysts who can combine system fundamentals with trading application
Denmark’s role in cross-border volatility
A particularly important point for Nordic markets is the growing influence of cross-border dynamics. The report notes that conditions in neighbouring markets increasingly affect local pricing outcomes, particularly where interconnector capacity is available.
This matters significantly for Denmark. German oversupply, Nordic hydrology, balancing shortages and continental fuel prices can all feed into Danish intraday and balancing conditions.
That means traders and optimisation teams increasingly need a pan-European view of power flows rather than a purely domestic focus.
How durable is the trend?
In the near term, battery-driven trading activity across Nordic markets is likely to continue growing.
However, the report also suggests that rising battery penetration will eventually flatten some of today’s most extreme price spreads.
As that happens:
- Short-duration arbitrage strategies may become less dominant
- Longer-duration assets could gain relative advantage
- Revenue models may shift towards more complex multi-market optimisation
This will likely increase the importance of sophisticated trading and quantitative capability even further.
Hiring implications across Nordic power markets
Across Nordic and European energy markets, we are already seeing:
- Rising demand for traders with storage exposure
- Strong competition for power market quants
- Growing need for hybrid analytics and trading profiles
- Increased demand for intraday optimisation expertise
- Greater emphasis on cross-border market understanding
The commercial skillset around battery optimisation is becoming materially more advanced as Nordic markets mature.
The takeaway
Battery storage is moving from a niche flexibility product to a core participant in Nordic energy markets.
As balancing reforms, renewable penetration and cross-border volatility continue to reshape the region, batteries are increasingly being managed as trading assets rather than purely infrastructure assets. That shift is already influencing hiring.
The most valuable profiles are increasingly those who can combine:
- Market understanding
- Trading capability
- Quantitative modelling
- Forecasting expertise
- Cross-border power market knowledge
As Nordic power markets become more dynamic and interconnected, that combination of skills is likely to become even more valuable.
