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Beginner
ASK THE EXPERTS: Batteries on Concrete
Is it okay to store batteries on a concrete surface?
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Equipment & Products
Beginner
Choosing the Best Batteries
Chemistry? Capacity? Nominal voltage? Brand? Use our comprehensive buyer’s guide to choose the best battery for your needs.
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Equipment & Products
Beginner
No Batteries Required
It’s easier and cheaper than ever to install a PV, wind, or microhydro system at your home. The secret? Grid-direct batteryless inverters.
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Equipment & Products
Intermediate
Water Rites
These off-grid Aussies made better use of their RE resources by replacing a temperamental turbine with a new microhydro machine and adding PV.
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Equipment & Products
Intermediate
ASK THE EXPERTS: Battery Charging Rates
Is there a standard maximum charge rate for flooded lead acid batteries?
2 comments
1 month 3 weeks
ago
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Justine Sanchez
Equipment & Products
Beginner
Sustainable Skiing
Sustainable skiing—Snowmass Ski Area, near Aspen, Colorado, taps into hydropower to offset some of its energy needs.
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Equipment & Products
Beginner
Hydro New England Style
Bill Kelsey’s homespun microhydroelectric system gets a professional tune-up, and starts producing at its potential.
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Equipment & Products
Advanced
MAIL: Induction vs. Synchronous
Confusion about the technical description of “induction generator” versus “synchronous generator”?
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