These panels alone can cost between $300,000 to $400,000, depending on the manufacturer and efficiency ratings. Economies of scale make utility-scale solar far cheaper than residential. Assumes 4-5 peak sun hours daily. Varies significantly with location. A 1-megawatt solar power plant represents a significant yet increasingly accessible investment opportunity in renewable energy, typically requiring $700,000 to $1. Department of Energy (DOE) Solar Energy Technologies Office (SETO) and its national laboratory partners analyze cost data for U. solar photovoltaic (PV) systems to develop cost benchmarks. These benchmarks help measure progress toward goals for reducing solar electricity costs. Most homeowners spend between $12,600 and $33,376 to install a complete residential solar system in 2026, with the national average at $19,873 before incentives. Your actual cost depends on your home's energy needs, roof characteristics, location and other factors, all of which we'll break down in. 2024 ATB data for utility-scale solar photovoltaics (PV) are shown above, with a base year of 2022. The Base Year estimates rely on modeled capital expenditures (CAPEX) and operation and maintenance (O&M) cost estimates benchmarked with industry and historical data. Capacity factor is estimated for. Let's cut through the jargon first – when we talk about a 1 megawatt (MW) solar plant, we're referring to a system capable of producing enough electricity to power about 200 homes annually. But here's the kicker: The actual price isn't as straightforward as reading numbers off a menu.