The Best Solar Companies in Delaware (2026 Guide)

Delaware may be small in size, but it’s making big strides in clean energy. With higher-than-average electricity rates and solid sunlight throughout the year, many Delaware homeowners are choosing solar to lower bills and lock in long-term savings. Thanks to state programs like the Green Energy Fund and easy net metering, going solar in Delaware is a smart move that supports both your financial future and a cleaner environment.

Choosing the right installer matters just as much as choosing to go solar in the first place — the difference between a company that’s licensed, experienced with Delaware’s Green Energy Program and net metering rules, and backed by a real workmanship warranty and one that isn’t can add up to thousands of dollars over the life of your system. Below, you’ll find Delaware’s solar companies compared side by side, including which ones have completed EnergyScout’s verification process, so you can start your search with a shorter, more confident list.

Last Reviewed: 2026-09-11

Solar Installers in Delaware

EnergyScout tracks local and national solar companies serving homeowners throughout the state. Use the directory below to compare installers based on experience, service area, products, certifications, and other company information.

Companies displaying the EnergyScout Verified badge have completed an additional review process that includes a direct interview, screening customer feedback, and providing evidence of completed installations. Verification provides another layer of information when comparing solar companies, but homeowners should still evaluate multiple installers to find the right fit for their home.

How EnergyScout Verified works →

How to choose a solar installer.

Before contacting installers, read our guide on how to evaluate proposals, warranties, and long-term support.

State Solar at a Glance

38th
Residential
38th
Commercial
47th
Utility
Jobs Capacity
600
Solar Jobs
45th
Ranked for Solar Jobs
State Solar Capacity
298
Total Solar Installed (MW)
7.55%
% of states electricity from solar.
36,341
Enough to power homes

Source: Solar Energy Industries Association (SEIA), State By State data, as of January 2026 — seia.org/solar-state-by-state

Why Solar makes sense in Delaware

Understanding Home Solar and Storage in Delaware

Delaware’s Solar Progress:
Delaware ranks #38 in residential solar installations with nearly 300 MW of total capacity. While the state is geographically small, it generates over 7.5% of its electricity from solar — well above the national average — demonstrating strong commitment to renewable energy. Delaware employs over 600 solar workers, and the state has developed solid installer infrastructure across Wilmington, Dover, and coastal communities. The Mid-Atlantic location provides good year-round solar production, with particularly strong performance during summer months.

Green Energy Programs and Financial Incentives:
Delaware offers several programs that make solar financially attractive. The state’s Green Energy Fund has historically provided rebates for solar installations, though funding and availability vary by year. Delaware also offers property tax exemption for solar installations (your home value increases without higher property taxes) and net metering through Delmarva Power and Delaware Electric Cooperative. Net metering allows homeowners to earn credits when their systems produce excess energy, which can offset usage during lower-production periods. While Delaware doesn’t offer SRECs or state tax credits, electricity rates are moderate to high (often $0.13-$0.16 per kWh), making solar savings meaningful.

Coastal Weather and Energy Security:
Delaware’s coastal location brings both benefits and challenges. The state experiences hot, humid summers that drive air conditioning usage, making solar particularly valuable for offsetting cooling costs. Delaware also faces coastal storms, nor’easters, and occasional hurricanes that can cause power outages. Solar panels paired with battery backup provide energy security during grid failures, keeping essential systems running. For Delaware homeowners looking to reduce electricity costs, increase home value, and build resilience against coastal weather, solar offers a smart, forward-thinking investment.

Frequently Asked Questions

A typical home solar system in Delaware costs around $34,674 before incentives — about $2.64 per watt for a 13.1 kW system, per EnergySage’s September 2026 marketplace data. With financing, many homeowners see a monthly loan payment that’s a bit less than what they were already paying their utility — and once the loan’s paid off, that payment drops to zero while utility bills keep climbing. Comparing quotes from a couple of verified installers is still the best way to see exact numbers for your home.
Delaware’s Green Energy Program supports qualifying renewable-energy projects, and the state launched a Solar + Storage Pilot in 2026. Program details vary by utility and funding source, so homeowners should verify the current reservation process before construction. The important distinction is between a program that exists in law and one that is funded, open and available to a homeowner at your address today. Incentives may take the form of a rebate, production payment, renewable-energy credit, tax treatment, battery payment or utility-specific tariff. Some require a reservation before construction, a participating contractor, income qualification or enrollment in a utility program. Ask the installer to identify every incentive by its official program name, show the current value and eligibility requirements, and state who receives the payment or credit. If funding is limited, request confirmation that capacity or funds are actually available. A proposal should never subtract an incentive from the net price simply because it existed in a prior program year.
Delaware homeowners may also be able to create and sell solar renewable energy credits, adding a potential revenue stream beyond electricity-bill savings when eligibility and registration requirements are met. That issue should be built into the proposal rather than treated as an afterthought. Ask the installer to show how it affects system size, annual production, bill savings, equipment choice and long-term service. For weather or roof concerns, review roof age, structural requirements and the exact product certifications rather than accepting a blanket claim about durability. For rate-related concerns, ask for tariff-aware modeling instead of a simple annual-kWh calculation. If battery storage is part of the solution, compare solar-only and solar-plus-storage economics side by side and ask exactly which loads the battery will support during an outage.
Get at least three proposals and require each company to quote the project on the same basis: cash price, cost per watt, expected first-year production, degradation assumptions, equipment, workmanship coverage and the current Delaware utility tariff. Ask who performs the installation, who handles interconnection and incentive paperwork, and who will service the system if an inverter, optimizer or battery fails years later. Separate financing from system price so interest and dealer fees do not hide the underlying cost. Ask for recent projects in your utility territory, because local tariff, permitting and interconnection experience can be more valuable than a large national footprint. EnergyScout Verified status adds another diligence signal, but it should complement—not replace—competitive quotes and contract review.
Delaware’s average residential electricity rate sits at 19.29 cents per kWh as of September 2026, above the 18.34-cent national average, with a typical monthly bill of about $171. Rates have risen 6.2% over the past year, close to the national average increase of 5.0%.

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