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Wave-Making Resistance: Why Speed Drains an Electric Boat
A 69 kWh electric hydrofoil outranges a 110 kWh conventional boat. The reason is wave-making resistance: the wall of water a hull builds as it speeds up, and why foiling beats a bigger battery.
Alberta’s $14 Solar Panel Recycling Fee Starts Oct 1
From October 1, Alberta charges C$14 to recycle every new solar panel and bans them from landfill. The industry backs recycling but calls the fee a punitive tax set with math it won’t show.
Electrified Homes Shield UK Bills – but Not Evenly
Ember says an electrified home – solar, battery, heat pump, EV – is ten times better shielded from price shocks. Its own numbers reveal a shield bought upfront, and a widening gap with homes that can’t.
Scarcity Pricing and the ORDC, Explained
In an energy-only grid like Texas, no plant is paid just to exist. Scarcity pricing does that job: the ORDC adder lifts real-time power prices as reserves run low, toward a $5,000/MWh cap. Here is the mechanism.
The BrightVolt Take: The VPP Dispatch That Beat Our Forecast
Sunrun and Tesla dispatched a record 580 MW from 140,000 home batteries. A month ago we pegged that fleet’s real output at 300 MW. We were too cautious – but 16.8 GW is still wrong.
Energy-Only vs Capacity Markets: What Each Rewards
An energy-only market pays a plant only for the power it makes; a capacity market pays it again, years ahead, just to stay available — the design choice behind Texas’s battery boom.
The BrightVolt Take: Korea’s $6bn Battery Catch-Up
South Korea is spending $6bn to leap to sodium and solid-state batteries. But its 2027 sodium target already trails a Chinese cell shipping in 2026 — the bet is aimed at the past.
Renewable Curtailment: Why Grids Throw Away Clean Power
Curtailment is a grid deliberately spilling wind and solar it could have used. Why it happens, why the official rate can be a third of the real one, and how grids stop wasting it.
Denza Z9S: The World’s Longest EV Range, Decoded
Denza’s Z9S claims the world’s longest EV range, 1,100 km. The record comes from a 20% bigger battery, not a more efficient car — and even the WLTP figure is a house conversion.
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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