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Why Bigger Isn't Better When Sizing Your Heat Pump
An oversized heat pump can leave your home clammy, drive up energy bills, and wear out faster. Learn why right-sizing with a Manual J calculation matters.
Why Your Tesla Powerwall Goes Off-Grid When the Power Is Still On
Your Powerwall can take your home off-grid during a brownout or voltage spike, not just a blackout. Here is why it happens and what you can do about it.
MC4 Solar Connectors Look Identical Across Brands: They Are Not
MC4 connectors from different brands look identical but differ in tolerances and materials. Mixing them risks fires and NEC code violations.
Solar Panels in Fairbanks, Alaska: Why Steep Beats Vertical
How steep should solar panels be in Fairbanks? Research says 70 degrees, not vertical. The full story on tilt, bifacial panels, and winter output.
Why Sealant Alone Won't Protect Your Roof From Solar Panel Leaks
Sealant squirted into a bare bolt hole is a leading cause of solar roof leaks. Here is how proper flashing works, what codes require, and what to check.
Mitsubishi Mini-Splits Can Run at 1,600 BTU: Here's Why That Matters
Mitsubishi's best mini-splits modulate down to 1,600 BTU/h, the lowest in the industry. We explain why minimum output matters for comfort and efficiency.
Enphase's Legacy Upgrade Program Now Includes Batteries: Here's What to Know
Enphase's upgrade program lets legacy microinverter owners add batteries at a discount. Who qualifies, what it costs, and what to know before signing up.
California's 3-Day Right to Cancel a Solar Contract: What It Actually Covers
California law gives homeowners 3 business days to cancel a solar contract signed at home. Seniors get 5 days. Here is what the cooling-off period covers.
We Published a Deep Dive on Pure vs. Modified Sine Wave Inverters
We published a guide on pure vs. modified sine wave inverters: which appliances work, which don't, and what that means for solar backup systems.
Do Refrigerant Changes Really Make HVAC Equipment Obsolete?
Three refrigerant transitions in 40 years, each with decade-long lead times. Your R-410A system is not illegal, but service costs will rise over time.
California's Last SGIP Battery Incentive Is Income-Restricted: Here's What to Know
California's only active SGIP pathway, RSSE, requires income qualification. Here's who qualifies, what it pays, and the strings attached.
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