Smart Grids
The constraint on electricity in most developed countries is no longer generation, it is the wire and the transformer. Interconnection queues measured in terawatts, substations with multi-year lead times, and data-centre demand arriving faster than anyone planned for have made the grid the binding problem.
This section covers interconnection reform, transmission build-out, capacity markets, and the accreditation rules that decide what a generator is allowed to count for — the unglamorous machinery that determines whether clean capacity ever reaches a customer.
Latest coverage
The BrightVolt Take: Gas Is Winning Behind the Meter
On the public grid, gas is a rounding error: 6.3 GW of 86 in 2026. But US data centres have quietly lined up ~90 GW of on-site gas that never enters the interconnection queue.
The BrightVolt Take: France’s Fix for Too Much Solar
France has hit a record ~800 hours of negative or zero power prices in 2026. Its answer isn’t more storage – it’s moving heat pumps, EVs and industry into the midday sun, by mandate.
The BrightVolt Take: Data Centers Pick Gas to Skip the Queue
US data centers are building 56 GW of their own power, about three-quarters of it gas. Not because gas beat solar and storage – because gas can skip a five-year grid queue holding 1,500 GW of cleaner power.
The BrightVolt Take: Storage’s GWh Record Hides a GW Stall
The US set a battery-storage record in Q2 2026 – 18.9 GWh – but installed power fell 7%. The fleet is getting longer, not bigger, and for the grid that distinction decides who keeps the lights on.
Load Factor: the Metric Behind Your Demand Charge
Load factor is average demand divided by peak demand: a data centre runs about 0.88, a restaurant 0.32. It is the number that decides how much of a power bill is demand charges – and what a battery can cut.
China’s Molten-Salt Bet: Solar That Runs After Dark
China just grid-connected a 1 GW solar plant that runs after dark, storing eight hours of heat in molten salt instead of lithium – the firming trick the West wrote off.
Australia’s Battery Revenue Halved. Then Came the Spike
New South Wales grid batteries earned an estimated AU$5.63m in two hours as prices hit AU$23,107/MWh — even as Australia’s quarterly battery revenue halved year-on-year.
South Africa Orders 4.6 GW of Batteries, No New Solar
South Africa’s first procurement off its new energy plan orders 4,600 MW of batteries and 5,000 MW of gas-to-power — and zero new wind or solar. The reason is a grid with too much power, not too little.
Must-Run Generation: the Fossil Floor That Spills Solar
A coal plant can’t switch off at midday – below about a third of its output it goes unstable. That must-run floor, not a lack of wires, is why a sunny grid spills solar instead of coal.
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