Energy Collective
Updated
Where hydrogen fuel cells stand
Most hydrogen fuel cells still run on fossil-based hydrogen, US sales remain tiny next to EVs, and a 2025 law moved up the tax credit deadline.
Updated
What a capacity market is, and why it’s driving up your electricity bill
A capacity market pays power plants for availability. PJM's price rose more than 11-fold in two years, driven by data centers, and it lands on bills.
Updated
How much a geothermal heat pump costs and how it works
A geothermal heat pump doesn't tap into volcanic heat. It works because the ground a few feet down holds a steady temperature year-round, and installed systems for a typical home run $15,000 to $40,000.
Updated
How fast solar power is growing in the US and worldwide
Solar led new US power capacity for the fifth year running in 2025 and set a global record, while a new US tax law is set to slow installs through 2031.
Updated
The best home battery backup systems in 2026, and what they cost
A home battery backup costs $15,650 installed on average in 2026. Compare Tesla Powerwall 3, FranklinWH, Enphase, Generac and EcoFlow plug-in kits.
Updated
The best portable power stations in 2026
The best portable power station for most people is the EcoFlow DELTA 3 Plus. Compare 7 picks for home backup and camping, with specs and 2026 prices.
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