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Vermont solar calculator

Live production from NLR (formerly NREL) PVWatts V8. Vermont net metering (PUC Rule 5.100) credits exports at an ABSOLUTE blended-based rate (not a percentage of retail) — base Category I residential ≤15 kW effective $0.1439/kWh, plus an optional $0.03 adder if you TRANSFER RECs to GMP (default modeled, total $0.1739/kWh). Self-consumed solar offsets full GMP retail (~$0.2146/kWh — among the highest US residential rates). Burlington (BED) is the lowest-retail VT utility (~$0.1837). LOCKED 10 years from interconnection. Pick REC path via the selector below. CRITICAL: VT 6% sales tax exemption on solar SUNSETS JUNE 30, 2026 — installs completing after that date may be sales-taxable unless legislature extends. Property tax exempt for systems <50 kW (32 V.S.A. § 3802). NO state income tax credit (the widely-cited "30% VT credit" is a myth — it was 25% of federal, equals zero now federal is zero). Federal §25D = $0 (OBBBA repeal). Group / virtual NM closed for new installs Jan 1, 2025 (Act 179). GMP battery incentive: BYOD $850-950/kW upfront (cap $10,500). PUC has cut adjustor rates 7 years running — Case 26-0291-INV pending. Defaults: south-facing roof mount, 20° tilt, 14% losses.

Vermont: REC adder choice — pick ONE at enrollment

VT net metering credits exports at an absolute blended-based rate (PUC Rule 5.100). At enrollment you choose whether to keep RECs or transfer them to GMP for an additional adder. Locked for 10 years.

System Configuration

Estimate your solar payback

Quick sample ZIPs: