50 per watt fully installed in 2026. For a typical 8 kW residential system, that is $20,000–$28,000 before incentives. High-efficiency modules: The average price has risen to €0. Compared with January 2026, this represents a 13. Department of Energy (DOE) Solar Energy Technologies Office (SETO) and its national laboratory partners analyze cost data for U. These benchmarks help measure progress toward goals for reducing solar electricity costs. NLR analyzes the total costs associated with installing photovoltaic (PV) systems for residential rooftop, commercial rooftop, and utility-scale ground-mount systems. This work has grown to include cost models for solar-plus-storage systems. Through 2022, benchmarks were developed using bottom-up. Solar panels cost $2. The federal 30 % Section 25D tax credit ended on 2025-12-31 — 2026 buyers do not receive the. Note: Costs are expressed in constant 2024 US$ per watt. Solar photovoltaic module prices refer to the cost of the solar panel itself, and do not include installation or other system. Hard costs involve the cost of the solar panels, solar inverters, solar batteries, racking systems, and electrical components. Soft costs involve labor, permitting, engineering, transportation, and sales margins.