Intraday volatility became the defining feature of April trading, with Electricity.Trade intraday price curves confirming extreme spreads between midday and evening hours.
Hungary exhibited the most pronounced volatility, with prices falling to -€500/MWh during solar peaks and rising above €275/MWh in evening hours. Electricity.Trade hourly tracking shows price reversals exceeding €200–300/MWh within the same day, reflecting rapid system transitions.
Across Slovenia, Romania and Bulgaria, similar patterns emerged. Electricity.Trade negative pricing alerts indicate that midday oversupply events are becoming structurally embedded, particularly in high-solar penetration zones.
These events are driven by a combination of:
- Solar output exceeding 5 GW regionally
- Limited storage capacity (still below 100 MW aggregated utility-scale BESS in key markets)
- Inflexible thermal generation remaining online
As solar production declines after hour 16–17, Electricity.Trade balancing signals show sharp increases in import demand and thermal dispatch, triggering steep evening price spikes.
Serbia’s price profile diverged from this pattern. Electricity.Trade congestion analytics suggest that restricted import capacity during peak hours amplified price increases, pushing SEEPEX toward €96–100/MWh even as neighbouring markets softened.
The result is a structurally volatile market where intraday positioning dominates trading strategy, and where negative pricing is no longer an anomaly but a recurring feature.