Washington DC Solar Panel Guide

Everything you need to know about going solar in Washington DC. Pepco net metering, DC's premium SREC market, and why the District has some of the best solar economics in the country.

Quick Answer
Washington DC has exceptional solar economics—among the best in America. DC SRECs sell for $300-500+ each (vs $40-80 in neighboring states), adding $2,100-4,000/year to typical system income. With Pepco net metering at $0.13-0.16/kWh (EIA data), expect 3-6 year paybacks. Even small row house systems are highly profitable. If you're waiting, you're leaving serious money on the table.

DC Solar Overview

Washington DC has one of the most attractive solar markets in the country, thanks to an exceptionally valuable SREC market. DC's aggressive renewable energy standards have created premium SREC prices that make solar financially compelling even for smaller systems. Combined with Pepco's net metering, DC residents have excellent solar economics.

💡
From my experience:DC is honestly one of the best solar markets in the entire country, and most people don't know it. Those SRECs at $300-500+ each? That's real money. A small row house system that would struggle to pencil out in most cities becomes highly profitable in DC. If you live in the District and you're waiting to go solar, you're leaving serious money on the table every year. The SREC market won't stay this valuable forever—more installations mean more supply, which pushes prices down. Lock it in.
DC Solar Stats
DC averages about 4.6 peak sun hours daily. A typical 7 kW system produces approximately 8,400 kWh/year. Pepco rates average $0.13-0.16/kWh, but DC SRECs can add $300-500+ per kW annually—making total returns exceptional. (Source: NREL Solar Resource Data)
[Editor's Note, Jan 2026]:Local utility rates, incentive programs, and installer availability verified for current accuracy.

Pepco Programs

Pepco Net Metering

Pepco serves Washington DC with favorable net metering policies:

  • Full retail credit: Excess generation credited at retail rate
  • Monthly rollover: Credits carry forward
  • System size limit: Up to 100% of annual usage
  • Interconnection: Standard DC process

Pepco Rate Details

Rate ComponentDetails
Average Rate~$0.13-0.16/kWh
Net Metering CreditFull retail rate
Customer Charge~$7-10/month (not offset)
Rate TrendGradually rising

DC SREC Market

DC's SREC market is the star of the show. The District's small geographic size and ambitious renewable standards have created premium SREC values.

DC SREC Details

  • Value: $300-500+ per SREC (market fluctuates, often premium)
  • Annual earning: ~7-8 SRECs for a 7 kW system
  • Additional income: $2,100-4,000/year!
  • Market driver: DC's solar carve-out in Renewable Portfolio Standard
DC SREC Premium
DC SRECs are worth significantly more than Maryland or Pennsylvania SRECs—often $300-500 each vs $60-80. A 7 kW system earning 7 SRECs at $400 = $2,800/year in SREC income alone. This dramatically changes solar economics. (Source: SRECTrade and state program data)

Federal Tax Credit (2026 Update)

Purchase TypeFederal CreditNotes
Cash/Loan PurchaseNone (25D expired)Ended Dec 31, 2025
PPA/Lease30% (48E)Through Dec 2027

Costs & Savings in Washington DC

Typical System Costs

System SizeGross CostEst. Annual Value*
5 kW$15,000-17,000$2,200-3,500
7 kW$21,000-24,000$3,100-4,800
10 kW$30,000-34,000$4,400-6,800

*Includes electricity savings + SREC income; SREC values fluctuate

Savings Breakdown

  • Electricity offset: $160-190/year per kW
  • DC SREC income: $300-500/year per kW (market dependent)
  • Total value: $460-690/year per kW
  • Payback period: 3-6 years (with strong SREC market)
  • 25-year savings: $50,000-90,000+
Exceptional ROI
DC's solar economics are among the best in the nation. A 7 kW system costing $22,000 and generating $4,000/year in combined value pays back in about 5.5 years. After payback, decades of free electricity + SREC income. (Source: EnergySage market analysis)

DC-Specific Considerations

Historic Districts

Much of DC is subject to historic preservation rules:

  • HPRB review: Historic Preservation Review Board may need to approve
  • Visibility restrictions: Street-visible panels may be limited
  • Rear installations: Often easier to approve
  • Flat roofs: DC row homes with flat roofs often avoid visibility issues

Row Homes & Townhouses

  • Flat roofs: Very common in DC; good for ballasted systems
  • Limited space: Row home roofs may limit system size
  • High SREC value: Even smaller systems are worthwhile in DC
  • Shared walls: No side-access needed for installation

Condos & Co-ops

  • Building approval: Condo associations must approve
  • Common area solar: Some buildings install shared systems
  • Individual challenges: Individual rooftop access often limited
  • Community solar: Alternative for condo owners

The Bottom Line

Washington DC has exceptional solar economics—among the best in the US.The premium SREC market, combined with Pepco net metering, creates 3-6 year payback periods. Even small systems on row home roofs can be highly profitable.

Best candidates: Any DC homeowner with viable roof space. The economics are so favorable that even modest systems make financial sense. Historic district requirements add complexity but are usually navigable.

Act while SREC values are high: DC's SREC market could change as more solar is installed. Current premium values make acting sooner rather than later advantageous for locking in attractive economics.

Small system? Still worth it: In markets with weak net metering, small systems struggle. In DC, even a 3-4 kW system on a row home roof can deliver excellent returns thanks to SREC income.

Questions About DC Solar?

Our AI can help you understand Pepco programs, DC SRECs, historic district rules, and whether solar makes sense for your District home.

Ask About DC Solar
LP

Written by

Lincoln Panasy

Founder, SolarQuest AI • Solar Expert Since 2018

Lincoln created SolarQuest AI after seeing too many homeowners get burned by pushy solar salespeople. With 8 years of experience in the solar industry since 2018, he writes and reviews all content on this site—combining his real-world expertise with AI tools to deliver accurate, unbiased solar education.