Dysprosium (Dy) is the heavy rare earth that keeps EV and wind turbine magnets working when they get hot. Here is what it does, why its supply is so fragile, and how magnet makers are learning to use less of it, or none at all.
A Level 1 charger plugs into a normal outlet and adds about 5 miles of range per hour. Level 2 adds about 25. Here is how to work out which one your driving actually needs, and what the upgrade costs.
There are 17 rare earth elements, and despite the name most are not rare. Here is the complete list, what each one does, why they are so hard to separate, and why China’s dominance matters.
Plug-in or “balcony” solar lets renters and homeowners plug a small solar kit into a wall outlet. Here is how it works, what it saves, the safety questions, and which US states have legalized it as of October 2026.
A portable power station is a big rechargeable battery with outlets. Here is how to read the specs, work out the size you need, charge it with solar, and decide whether it beats a generator or a home battery.
A solar battery stores your panels’ daytime power for the evening and keeps the lights on in an outage. Here is what one costs in 2026, how to size it, and when it is worth the money now that the federal tax credit has ended.
LiFePO4, also called LFP, is the lithium-ion battery behind most home batteries, power stations and 12 V RV and marine batteries. Here is how it works, how long it lasts, how to charge it and what to check before you buy.
LFP and NMC are the two lithium-ion chemistries you will meet in EVs, home batteries and power stations. Here is how they differ on cost, lifespan, safety, range and cold weather, and which one fits your use.
Most EV motors rely on neodymium magnets. This guide explains the four proven rare earth free motor designs, which cars already use them, and what they cost in efficiency and size.
What makes a mineral “critical”, the full US list of 60 critical minerals, how the EU list differs, and why lithium, nickel, copper and rare earths matter for clean energy.