8 articles
DC row houses lose heat through attic decks and rim joists, not just windows. Here's which air-sealing fixes pay back first — and how they shrink your solar system size.
Gas tankless water heaters in DC cost $2,500–$5,500 installed in 2026. Here's how gas vs. electric compares — and how solar changes the math on electric hot water.
A 7 kW DC rooftop solar system offsets roughly 3.5 metric tons of CO2 per year. Here is how we calculate the real solar carbon offset for DC homes.
Full electrification of a DC row house costs $10,000–$22,000 after DCSEU rebates. Here's what switches easily, what doesn't, and how to sequence the project.
DC's renewable energy standard drives SREC prices to $360–$400/MWh in 2026. Here's what the RPS actually means for homeowners considering solar.
The federal 25C heat pump tax credit expired Dec 31, 2025. Here's what DC homeowners can still claim in 2026 — DCSEU rebates up to $5,000, panel upgrades, and more.
The federal solar ITC expired January 1, 2026. Here's what DC electrification incentives remain — DCSEU rebates, SRECs, Solar for All — and how to stack them.
Learn how solar system design choices—panel layout, equipment selection, roof conditions, and electrical upgrades.