The 5 best solar installers in Maryland
A geographically balanced top 5 spanning Baltimore metro, Montgomery County (DMV), Annapolis, and the PG-County/DC-adjacent corridor — so homeowners across MD's main metros have a local-to-them option in the top picks. For Eastern Shore and Western MD coverage, see the Honorable mentions below.
Solar Energy World Local
Why listed: Long-running MD-HQ residential and commercial solar installer with one of the largest install counts in Maryland. NABCEP-certified, EnergySage-listed, and broad statewide coverage from the Howard County HQ. Strong Baltimore/Howard/Anne Arundel option.
Lumina Solar Local
Why listed: MD-HQ residential installer with strong third-party review profile on EnergySage and SolarReviews. Multi-state Mid-Atlantic footprint anchored in Maryland — one of the more consistent residential installers across the Baltimore and DMV corridors.
SolarGaines Local
Why listed: Bethesda-based residential installer focused on Montgomery County and the DC suburbs. Known for detailed planning and post-install support in the DMV's tight-permit municipalities (Bethesda, Chevy Chase, Silver Spring, Rockville). Strong fit for high-bill suburban roofs in the Pepco MD service territory.
Aurora Energy Local
Why listed: Annapolis-area residential installer that anchors the top 5 outside of Howard/Baltimore and Montgomery County. Strong Anne Arundel and South-Baltimore-corridor presence — useful comparison bid for homeowners near the Bay.
American Sentry Solar Local
Why listed: Bel Air-based residential and commercial installer operating since 2009 as a division of American Design & Build. Solar Power World Top Contractor with explicit PG County service (Hyattsville, College Park, Bowie) plus Harford and Baltimore counties — useful comparison bid in the I-95 / Baltimore corridor.
National installers National
Sunrun, Tesla Energy, and Palmetto Solar are the major national installers still actively taking new Maryland residential contracts as of 2026. Palmetto Solar currently holds EnergySage's Elite+ tier — the platform's highest installer rating. National installers typically have larger sales footprints but also higher financing markup and more variable local service quality than the state-based installers above.
Avoid — recently bankrupt or exited: Sunnova (Chapter 11 June 2025), the original SunPower (Chapter 11 August 2024 — the current "SunPower Inc." is rebranded Complete Solaria, a separate company), ADT Solar (exited residential solar January 2024 — warranty service only), Freedom Forever (Chapter 11 April 2026), and Pink Energy / Power Home Solar (defunct September 2022 — had an MD installation footprint; warranty service is essentially unavailable). If a salesperson contacts you under any of these brand names, ask which legal entity is actually signing the contract and warranty.
For the complete list of national installers with state coverage maps, financing terms, and ratings:
Maryland solar economics in 2026
| Metric | Maryland average |
|---|---|
| Average residential rate | $0.14–$0.18 / kWh |
| Typical 8 kW system cost (cash) | $22,000–$28,000 before incentives |
| Average $/W | $2.75–3.50 |
| Average annual production (kWh per kW) | ~1,250–1,400 kWh/kW/year |
| Net metering structure | Net metering at retail (Maryland PSC) |
| Average cash payback | 9–11 years |
For full state-by-state cost comparison see solar cost by state.
Maryland solar incentives and rebates (2026)
Maryland stacks federal credit pathways (commercial Section 48E for businesses and third-party-owned residential), state-level credits/rebates where applicable, statutory tax exemptions, and utility-specific programs. Below is the 2026 picture with links to authoritative sources.
Federal credits (2026)
- Commercial Section 48E (Clean Electricity Investment Credit): Available to businesses, farms, and to third-party owners in lease/PPA structures (which can pass the benefit through as lower monthly payments). FEOC restrictions apply — see FEOC rules guide and FEOC compliant parts list. IRS — Clean Electricity Investment Credit.
- USDA REAP grants (agricultural / rural small business): Up to 50% of project cost, with low-interest loan guarantees on top. Quarterly application windows. "Before you build" rules — you must apply before construction starts. USDA — REAP Program.
- Federal 30C EV Charger Tax Credit: Up to 30% of eligible EV charging equipment + installation costs at qualifying locations. Expires for property placed in service after June 30, 2026. IRS — 30C Credit.
Maryland state-level incentives
- MD Residential Clean Energy Rebate: $1,000 grant for residential solar PV. Apply within 12 months of PTO. Funding refreshes annually; apply early.
- Property tax exemption: MD Tax-Property §7-242 — property tax exemption for solar.
- Sales tax: MD sales tax exemption for solar PV equipment.
Net metering & utility programs in Maryland
MD retail-rate NEM with annual true-up. See also net metering explained.
- BGE: NEM www.bge.com
- Pepco: NEM www.pepco.com
- Delmarva Power: NEM (Eastern Shore) www.delmarva.com
- SMECO: Member NEM www.smeco.coop
- Potomac Edison (FirstEnergy): NEM (Western MD)
Maryland SREC market
MD SREC market is one of the strongest in the country — significant residual revenue. Installer must register the system in the SREC market at PTO.
Maryland battery storage incentives
MD Energy Storage Tax Credit: 30% of cost, capped at $5,000 (residential). One of the more generous state-level battery credits — verify 2026 funding.
Maryland EV charger and EV-purchase incentives (2026)
- State EV purchase rebate: MD EV Excise Tax Credit: Up to $3,000 for new EV (verify 2026 funding).
- Federal 30C EV Charger Tax Credit: Up to 30% of eligible equipment + installation in qualifying low-income / non-urban census tracts. Expires June 30, 2026 for property placed in service after that date.
- Many Maryland utilities and cooperatives offer Level 2 EV charger rebates ($150–$800 typical) often tied to TOU enrollment or smart-charger requirements. Check directly with your specific utility.
Authoritative sources to verify before signing
- MD Energy Administration: energy.maryland.gov
- DSIRE (Database of State Incentives for Renewables & Efficiency): programs.dsireusa.org/system/program?state=MD — searchable national database, kept current by NC State.
- Federal IRS guidance: irs.gov — Clean Electricity Investment Credit
What to verify before signing in Maryland
- Contractor license: Verify with your state contractor licensing authority before signing.
- NABCEP certification: Most reputable installers carry NABCEP-certified installers on staff. Ask which crew member holds the certification.
- Insurance: General liability + workers comp + roofer's insurance separate from electrical insurance.
- References from your county: Permitting and inspection requirements vary. Ask for 2–3 references from your specific county.
- Get at least three bids: Solar bids vary by 20–35% on the same scope of work. See how to compare solar bids.
Got bids from Maryland installers? Compare them properly.
Upload up to four solar proposals from any Maryland installer. The analyzer compares $/W, production estimates, equipment, and financing structure — and tells you which one to sign.
Analyze My Bids →Honorable mentions
Additional installers worth getting a quote from — additional MD-based options for geographic spread between Baltimore, Frederick/Western MD, and the Eastern Shore, plus DMV regional installers serving MD from neighboring VA/DC offices.
Other Maryland-based installers
Paradise Energy Solutions Local
Why listed: Multi-state Mid-Atlantic installer with an MD office in Thurmont serving Western Maryland, Frederick County, and the Pennsylvania/West Virginia border counties. Good Frederick/Hagerstown comparison bid where the Bethesda and Elkridge installers are a longer drive.
Sun Tribe Solar Local
Why listed: Charlottesville-HQ residential and commercial installer with B-Corp certification and Mid-Atlantic coverage that reaches Western Maryland. Useful comparison bid alongside Paradise for Frederick/Hagerstown homeowners.
Regional installers serving Maryland
Worth a quote in the DMV side of Maryland (Montgomery / PG / Frederick) where these DC/VA-HQ regionals routinely cross the state line.
Nova Solar Regional
Why listed: 50+ combined years residential solar experience across the founding/management team. Strong tri-state DMV reputation — useful comparison bid for Montgomery and PG County roofs.
Ipsun Solar Regional
Why listed: Top-10 DMV installer, B-Corp certified, with detailed-planning reputation that translates well across the MD line into Montgomery and PG County.
Tip: Maryland's Residential Clean Energy Rebate ($1,000 grant), the SREC market (one of the strongest in the country), and the battery-storage tax credit all stack on top of net metering. Make sure your installer files the residential-grant application within 12 months of PTO — missing the window leaves $1,000 on the table. Ask for the SREC registration confirmation as part of close-out.
Frequently asked questions about Maryland solar
Does solar make sense in Maryland?
Yes for most homeowners with a $150+ monthly electric bill, an unshaded roof, and 8+ years of expected ownership. Maryland's specific economics are summarized in the table above.
How much does a typical Maryland solar install cost in 2026?
$22,000–$28,000 for an 8 kW system before incentives. Effective net cost depends on your state and utility incentives.
Should I get more than three bids?
Yes — three is a minimum. Four or five is better. Solar bids vary by 20–35% on the same scope of work. See how to compare solar bids.
Are there other reputable Maryland solar installers besides these?
Many. The list above represents installers with strong public profiles in Maryland; reputable installers exist beyond it. Get bids from a mix and compare them objectively rather than relying on any one list.