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Perovskite’s 27% Record and the Number That Ships
A Nanjing team pushed perovskite-organic tandem cells to a certified 26.88% — a real record, and the wrong number to watch. The efficiency that ships, and how long it lasts, lag far behind.
The BrightVolt Take: Europe’s 30% EV Month Is One Month
Headlines say European EV share hit a record 30.5% in August, beating every forecast. The official EU-wide figure is 20.7%, and the gap between them is the whole story.
Land Equivalent Ratio: The Number That Sells Agrivoltaics
The land equivalent ratio is the headline metric for solar farms grown over crops. It almost always tops 1 by design – and it hides the harvest it cost to get there.
Electric Trucks Solved Range. Charging Is the New Wall.
At IAA Transportation 2026, Europe’s electric trucks converged on 600-720 km – about one legal driving day. The race has moved to megawatt charging that refills in the mandatory 45-minute break.
Grain-Oriented Steel: the Alloy the Grid Runs On
Nearly every transformer on the grid has a core of grain-oriented electrical steel – a 3%-silicon alloy the US makes at one mill. Why it’s so hard to replace, and why lead times now hit four years.
LCOE Explained: What the Cheapest-Power Number Leaves Out
LCOE is the most-cited number in energy and the most misused. It measures one thing — the lifetime cost of a new plant’s own output — and gets used to answer three questions it can’t.
BYD’s 9-Minute EV Charge Runs on a Battery, Not the Grid
BYD’s Denza N8L charges its 130 kWh pack to 97% in nine minutes — about 900 kW into one car. But the megawatt charger draws only 600 kW from the grid and makes up the rest from a 1.5 MWh on-site battery.
The BrightVolt Take: China’s EV Plan Is a Shakeout
China’s new five-year plan targets 70% EV sales by 2030 – a number the market already hit at 65% in August. The line that matters is the first-ever capacity-warning system: Beijing is telling its car industry to stop building.
Interconnection Queues: The Clean-Energy Bottleneck
About 2,000 GW of power – more than the entire US fleet – waits in interconnection queues, and only 13% of projects ever connect. What the queue is, why it moves so slowly, and why Texas escapes it.
Essential reading
The explainers the rest of the site links back to, and the numbers behind the headlines.
- Capacity accreditation: why 100 MW counts as 34 MW
- Peaker plants: the priciest power runs least
- Solar capture rate: why more solar earns less
- Why a 350 kW charger never gives you 350 kW
- EV range: CLTC vs WLTP vs EPA
- Lithium plating: why fast charging degrades batteries
- Why an e-bike battery beats a car battery
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News / Reviews / Insights on all things Electric & Alternative Energy
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News / Reviews/ Insights on all things Electric and alternative enegry
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