However, negative energy prices are also on the rise – …It comes as the war on Iran sends oil and gas prices soaring, pushing Europeans further towards the green transition. Commercial curtailment is on the decrease across Europe, except for one particular country. Commercial curtailment is on the decrease across Europe, except for one particular country. Europe’s solar and wind farms are actively choosing not to produce energy, as experts warn more investment is needed in storage and flexible technologies. However, negative energy prices are also on the rise – hitting all-time highs in areas such as the Iberian Peninsula.