Four-hour batteries now undercut open-cycle gas turbines in all 43 markets Wood Mackenzie surveyed

The Wood Mackenzie report found the cost advantage held on every continent. The consultancy expects electricity from batteries to keep getting cheaper while power from gas turbines rises in price over the coming decades. Open-cycle turbines are easier to build and quicker to obtain than closed-cycle units, which made them a popular choice for data center builders who need power fast. They are also less efficient and costlier to run. Utilities use the same machines as peaking plants during demand spikes, so turbine shortages driven by AI campuses also raise grid costs for everyone else. The findings arrive as US electricity prices climb and lawmakers scrutinize who pays for data center power. For founders building or buying compute, energy is now one of the main factors setting price and timeline. Storage paired with renewables is becoming a cheaper bridge than gas for on-site power, which could reshape where new capacity gets built and how fast neoclouds can bring it online.