Welcome to Home Power Magazine

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A reader wonders if adding insulation will keep summer heat lower, and expert Gary Reysa responds.
Home Efficiency
Home Efficiency
Midnite Solar's Kid
By: Zeke Yewdall
Learn the advantages of MPPT charge controllers for home- and cabin-scale battery-based PV systems.
Solar Electricity
By: David Posluszny
Net-zero energy on a budget
Home Efficiency
Ceiling Fan
By: Carl Seville
A ceiling fan can heat up to about 100°F when running, adding heat to a house.
Home Efficiency
Floor-Mounted Expansion Tank
By: Vaughan Woodruff
Expansion tanks are a critical component in protecting your solar water heating system from overheating.
Solar Water Heating
Home Efficiency
Intermediate
Hal & Allison's home
Light clay-straw walls, passive solar design, and active solar technologies combine to make an innovative high-performance, net-zero energy home.
1 comment 3 weeks 5 days ago by Anonymous _2267
Solar Electricity
Intermediate
SolarEdge Inverter with rapid shutdown
New rapid shutdown function available in SolarEdge inverters
Home Efficiency
Beginner
A fan motor in an infrared photograph
A ceiling fan can heat up to about 100°F when running, adding heat to a house.
Solar Electricity
Intermediate
Module-Level Performance
A comprehensive look at AC modules, microinverters, and DC optimizers for residential PV systems.
1 comment 3 months 1 week ago by Telkwa
Solar Electricity
Intermediate
Magnum Energy (magnumenergy.com)
An in-depth look at battery-based inverters for off-grid and battery-based grid-tied systems.
1 comment 2 months 4 weeks ago by Brandon Williams
Solar Electricity
Beginner
The home and its PV array.
In the coal-heavy state of West Virginia, solar shines at Rita Hennessy and Sean Palmer’s new custom-built home in Shepherdstown.
16 comments 3 weeks 5 hours ago by Michael Welch
Solar Electricity
Intermediate
Back-fed breaker
Article 705 of the National Electrical Code, “Interconnected Electric Power Production Sources,” has expanded and contains some significant changes.
Wind Power
Intermediate
Cook's RE system photo.
A reader and Art Cook talk about Art's wind generator.
Home Efficiency
Beginner
Water-witching
Without a good snow-pack in the mountains, we don’t expect the spring to last into summer this year. So we decided we would drill another well.
2 comments 1 month 3 weeks ago by Claire Anderson
Solar Electricity
Beginner
SMA Sunny Boy Photo
SMA America (sma-america.com) released two new TL-US models: the 3800TL-US and 6000TL-US.
Solar Electricity
Intermediate
Schematic of AC coupling
AC-coupled PV systems are gaining wider acceptance and support through several battery-based inverter manufacturers.
5 comments 2 weeks 4 days ago by bob tarzwell
Home Efficiency
Intermediate
House plans view
Passive solar design tips.
3 comments 2 months 4 weeks ago by Debra Coleman
Solar Water Heating
Beginner
Home-built solar air collector photo
Letter to Home Power on solar hot air collectors.
1 comment 1 month 1 day ago by BlindSquirl
Home Efficiency
Intermediate
House framing photo
Net-zero energy on a budget
2 comments 2 months 3 weeks ago by Kevin Dickson

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