TL;DR
- PPA reality check: PPA deals in Europe have become smaller and negative prices appear more often. Capture rates fall and solar portfolios crowd the bright hours of the day.
- Merchant opportunity: Batteries often sit still during valuable balancing spikes and solar keeps producing when controlled reduction could bring income. Merchant activity lets assets take part in day ahead, intraday, aFRR, congestion and capacity markets.
- The payoff: a typical uplift of €2 to 3 million a year for a 200 MW solar portfolio, and a 1 to 2 point IRR improvement.
- What makes it feasible: modern VPP platforms provide forecasting, market access, dispatch and imbalance work without a large control room or a long IT programme.
Are you watching closely?
The year is 2025. Across Europe, solar and wind portfolios are humming along under long-term PPAs. Your 200 MW solar portfolio in the Netherlands is printing €7,000 to 12,000 per hour on a bright afternoon. A 50 MW wind farm in Northern Germany runs at similar numbers per MW, and a 20 MW battery nearby waits quietly for wholesale price spikes.
Perfectly ordinary renewables, decent money and safe PPAs. Nothing to see here. Except these assets could be earning significant upside without adding a single panel, simply by learning one new trick: helping balance the grid and keeping optionality over every market.
As Michael Caine's character explains in The Prestige, every great magic trick has three acts.
Act I: The Pledge
"The magician shows you something ordinary."
You own the 200 MW solar portfolio and the 50 MW wind and battery farm. Your assets are performing and the business plan is working. But balancing markets spike to €400/MWh while your battery sits idle, and during oversupply your panels keep producing as usual. The revenue is untapped, held back by fragmented software or locked in with the PPA buyer.
The PPA market has changed. Deal sizes have shrunk from 70 to 80 MW to below 50 MW. Negative prices are frequent, capture rates are declining, and standalone solar profiles are saturating the peak hours. That is why going partially merchant matters: value is moving towards optionality and multi-market arbitrage. Between knowing and doing sits a gap most IPPs struggle to cross.
Act II: The Turn
"The magician takes the ordinary something and makes it extraordinary."
With trading roles such as BRP, BSP and CSP, your solar portfolio now bids day ahead, trades intraday, provides voltage support and trades on local congestion markets. Your battery delivers frequency restoration reserve with 4 second response, absorbs negative prices and captures wholesale spreads in real time.
The rule of thumb: with a 200 GWh production portfolio or 50 MW+ of batteries, it is worth going merchant with a small trading team and solid tooling. Beyond 1 TWh in one geography, autonomy typically increases further with active market roles and in-house optimisation.
| Phase | Focus | What happens |
|---|---|---|
| Stakeholder alignment | Strategic foundation | Workshops align operations, trading and technical teams on objectives, roles and roadmap. |
| Shadow testing | Validation | Forecasts are validated against real generation, stability is tested, and the business case and risk models are proven. |
| Portfolio integration | Technical infrastructure | Infrastructure for fast response is deployed and integrated with market and TSO platforms. |
| Full deployment | Multi-market activation | Every site connects to day ahead, intraday, frequency response and congestion markets. |
The value stack builds on individual markets and de-risks you against any single one:
- Day ahead: €60 to 90/MWh
- Intraday: €80 to 100/MWh
- Capacity markets: €40 to 60/MWh
- Congestion management: €100 to 200/MWh
- aFRR balancing: €80 to 150/MWh
Revenues from these markets are not cumulative. And none of this needs an 18 month build, a control room or a stack of fragmented vendors: VPP platforms handle the technical stack, from 4 second data feeds and forecasting to market access, dispatch and imbalance management.
Act III: The Prestige
"You have to bring it back."
Your panels look unchanged, but their economics have changed: an uplift of €2 to 3M a year for your 200 MW portfolio, potentially boosting IRR by 1 to 2 points on typical financing.
When the grid faces a frequency deviation, your batteries respond in 4 seconds. When solar surges and prices collapse, you trade the imbalance. When evening demand peaks, you deliver at premium rates. When constraints emerge, you earn to ease congestion.
Many start with a lightweight trading setup, heavily automated by the platform. As confidence grows, a full trading desk takes over and fine-tunes strategy. And for forward-thinking IPPs, the next step is already visible: moving into retail and selling energy to end consumers directly.
The curtain is up. Your move.
Powernaut provides the workspace that lets IPPs go merchant, bridging their own trading strategies with reliable execution. Schedule a workshop to learn more.
