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Home Energy Savings
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Solar Water Heaters: Collector Types and Where They Make Sense
How solar water heaters work, how batch, flat-plate and evacuated-tube collectors differ, and which climates and roofs suit them.
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Solar Panel Payback Period: How to Estimate the Break-Even Year
The solar panel payback period divides a system’s net cost by its yearly bill savings. Here is the method, the…
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Smart Thermostats: How Scheduling Cuts Heating and Cooling Use
How smart thermostat scheduling, setback and presence sensing reduce heating and cooling run time, what the ENERGY STAR criteria require,…
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Rooftop Solar Installation: Site Survey, Permits and Grid Connection
A rooftop solar installation runs from site survey through permits and utility interconnection to inspection and permission to operate. This…
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LED Lighting: How Much Energy the Switch Saves
LED lighting converts more electricity into light and less into heat. This guide explains the savings using US federal data…
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How Heat Pumps Heat and Cool a Home
A plain-language guide to the refrigerant cycle, efficiency measures, heat pump types, sizing and upkeep.
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Home Insulation: R-Values, Air Sealing and Priority Areas
Home insulation slows heat flow through attics, walls and floors. This guide explains R-values, recommended levels by climate zone, air…
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Home Energy Savings: Where a Household Uses Energy and How to Cut It
A map of household energy use and the upgrades that address each load, from audits and air sealing to heat…
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What a Home Energy Audit Checks and What It Costs to Act On
A home energy audit measures air leakage, inspects heating and cooling equipment and ends with ranked recommendations. This guide covers…
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Home Battery Backup With and Without Solar Panels
A plain explanation of home battery backup: how it works, how solar changes it, how capacity is sized and what…