Complete Guide to Solar Energy in New Hampshire
Your complete resource for solar energy. Everything you need to know about solar laws, solar costs, solar financing, and solar installation in New Hampshire.
Why Solar Makes Sense in New Hampshire
High Electricity Prices Support Solar Savings
New Hampshire has relatively high electricity prices, which makes reducing purchased power more valuable than in many lower-rate states. For many homes and small businesses, solar economics depend heavily on offsetting retail usage first.
Net Metering Still Matters
Net metering remains one of the most important drivers of residential solar value in New Hampshire. A properly sized system can reduce utility purchases and improve bill savings when matched to on-site consumption.
New Hampshire Allows Larger Residential Systems Than Many States
Residential and small commercial customer-generators can net meter systems up to 100 kW AC, which gives homeowners, farms, and small businesses more flexibility than states with smaller caps.
Solar Rules Are Statewide, But Project Details Still Matter
Compensation can vary based on tariff structure, utility, project size, and whether a customer buys energy supply from the utility or from a competitive supplier. That makes careful installer and utility review especially important before signing a contract.
Quick Solar Facts
Explore Solar Topics
Laws & Regulations
New Hampshire net metering law, tariff structure, utility participation, local property tax treatment, and key rules that affect residential solar value.
Residential Solar
A guide for New Hampshire homeowners covering roof suitability, shading, snow conditions, inverter choices, battery storage, and how to size a system around actual usage.
Costs & Savings
Electricity pricing, self-consumption value, export compensation, and why the best-performing projects are usually sized to serve on-site demand first.
Financing Options
Cash purchase, solar loans, home-equity financing, and how to compare payments against expected bill savings in a state with high power prices.
Installation Guide
How to choose an installer, review structural and electrical conditions, understand interconnection requirements, and prepare for utility approval.
Solar 101
How grid-tied solar works in New Hampshire, what net metering means, and how imported and exported electricity affect the monthly bill.
Community Solar
How group net metering works in New Hampshire, what it means for shared projects, and why it matters for customers who cannot or do not want to install rooftop solar.
Solar Calculator
Estimate your solar savings and system requirements.
Quick Solar Savings Calculator
Important 2026 Updates
Residential Renewable Electrical Generation Rebate Program Is Permanently Closed
New Hampshire’s former residential rebate program for PV and wind systems is now permanently closed. Homeowners in 2026 should not assume that a state cash rebate is available for new residential solar projects.
New Hampshire Residential Renewable Electrical Generation Rebate
Legacy Net Metering Now Has a Fixed End Date
New Hampshire’s 2025 Renewable Energy Fund report explains that PUC Order No. 27,074 largely kept the current net metering structure in place, but set a firm end date of December 31, 2040 for the legacy period instead of a rolling 20-year term.
New Hampshire Renewable Energy Fund Annual Report 2025
New Hampshire Solar Laws & Regulations
Net Metering Eligibility
For residential and small commercial customers, on-site renewable systems may net meter up to 100 kW AC. The system must be located behind the customer’s meter, operate in parallel with the grid, and be used primarily to offset the customer’s own electricity use.
New Hampshire Net Metering
Current Net Metering Tariff Structure
New Hampshire’s current tariff framework distinguishes between older standard net metering and alternative net metering treatment. Project compensation depends on project size, tariff class, and bill component, so customers should review utility-specific treatment before installation.
New Hampshire Net Metering Tariff 2023 Overview
Local Property Tax Exemption for Solar Energy Systems
New Hampshire law allows each city and town to adopt a property tax exemption for real property equipped with a solar energy system. Because this is a local option, homeowners should verify whether their municipality has adopted the exemption.
New Hampshire RSA 72:62