For Solar InstallersRooftop Solar Companies · NABCEP Certified Installers

Plug-in Solar for
Solar Installers

Expand Your Addressable Market — Reach Customers Rooftop Solar Can't.

Your rooftop solar expertise positions you to capture a fast-emerging segment of residential solar. Plug-in solar is not a competitor — it is a complementary product line that reaches customers you cannot serve today.

Rooftop Solar vs. Plug-In Solar
Avg. System Cost
$20,000+
$600–$2,500
Installation Time
2–3 days
1–2 hours
Sales Cycle
3–6 months
1–7 days
Permits Required
Yes
No*
Target Customer
Homeowners
Renters + Owners
Market Size (US)
~85M owners
~130M households

*In states with enacted legislation (Utah, Maine, Virginia, Colorado, Maryland). CT, NH, and VT awaiting governors' signatures.

The Strategic Opportunity

Plug-in solar is not a threat to your rooftop business — it is an expansion of your total addressable market. Here is why forward-thinking solar companies are exploring plug-in solar as a complementary product line.

New Customer Segment

44 million US renters cannot install rooftop solar. Plug-in solar lets you serve them. Many will become rooftop customers when they buy homes.

Better Revenue Efficiency

A 2-hour plug-in installation at $350 ties up far less crew time and capital than a 3-day rooftop project. No permit delays, no supply chain holds.

Shorter Sales Cycle

Rooftop solar sales cycles average 3–6 months. Plug-in solar: 1–7 days. Lower price point means faster decisions and higher close rates.

Complementary Revenue

Plug-in solar fills gaps in your rooftop pipeline. Seasonal slowdowns, permit delays, and supply chain issues don't affect plug-in solar.

Integration Models for Solar Companies

How established solar companies are incorporating plug-in solar into their existing operations.

Add-On to Existing Sales

Offer plug-in solar to customers who don't qualify for rooftop (renters, shaded roofs, HOA restrictions). Your sales team already has the leads — plug-in solar converts prospects you currently lose.

  • Convert 10–15% of lost rooftop leads
  • No additional marketing spend required
  • Existing CRM and sales process applies
  • Average conversion: 3–5 days from inquiry

Dedicated Plug-In Division

Create a separate service line with dedicated staff. This model works best for larger companies that want to scale plug-in solar as a distinct business unit with its own P&L.

  • Dedicated installation crews (2–3 installs/day)
  • Separate marketing targeting renters
  • Subscription-based maintenance revenue
  • Potential for 50+ installs/month per crew

Partnership & Referral

Partner with property managers, apartment complexes, and REPs to provide installation services at scale. Volume agreements with multi-family properties can generate consistent, predictable revenue.

  • Bulk installation agreements (10–100+ units)
  • Property manager referral programs
  • REP bundling partnerships
  • Predictable monthly installation volume

Market Context

Why Now?

Utah HB 340 enacted (March 2025)

First US law explicitly legalizing plug-in solar. Created the legal framework other states are following.

5 states enacted in 2026

Utah, Maine, Virginia, Colorado, and Maryland have all enacted plug-in solar laws. Connecticut, New Hampshire, and Vermont have passed bills through both chambers and are awaiting governors' signatures. New York, Massachusetts, and others are advancing legislation.

UL 3700 standard established

The safety standard for plug-in solar is now defined, giving manufacturers and regulators a clear compliance framework.

Early movers build capability now

Companies that develop plug-in solar expertise and partnerships before their state legalizes will be positioned to capture demand on day one.

Top States for Solar Installers

California32.0¢/kWh
SB 868 pending
Largest renter population in the US
New York24.9¢/kWh
S 8512 / A 9111 pending
High rates + dense urban rental market
Massachusetts33.0¢/kWh
H 4744 / H 5151 in Senate
Passed House, high rates, strong incentives
Virginia16.43¢/kWh
HB 395 Signed — Chapter 1052 (effective July 1, 2026)
Enacted law — largest data center market in the US
Maryland15.2¢/kWh
HB 1532 ✅ Signed May 12, 2026 (Ch. 353)
Enacted law — effective immediately
Colorado13.8¢/kWh
HB 26-1007 ✅ Signed May 7, 2026
Enacted law — 1,920W limit, highest in the US
View all 50 states

Frequently Asked Questions

Common questions from solar installation companies evaluating plug-in solar as a new product line.

Installer Directory

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We're building a directory of solar installers exploring plug-in solar. Add your company to be listed, receive educational resources, and stay informed as state legislation progresses.

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  • Plug-in solar resources and product information
  • Legislation updates for your state as bills advance

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