Plug-In Solar Legislation Roundup: What's Moving in 2026

By PlugInSolarUS Editorial Team · Published 2026-03-10 · Updated May 19, 2026 · 9 min read

13 states have active plug-in solar bills in 2026. Here's a status update on every major piece of legislation — what's passed, what's stalled, and what's coming.

Plug-In Solar Legislation Roundup: What's Moving in 2026

The landscape of plug-in solar energy in the United States is rapidly evolving. As of May 2026, five states have enacted plug-in solar legislation (Utah, Maine, Virginia, Colorado, and Maryland), three more are on governors' desks (Connecticut, New Hampshire, and Vermont), and more than a dozen states have active bills advancing through their legislatures. This roundup covers every major development — what's enacted, what's on the governor's desk, what's moving, and what stalled.

Understanding Plug-In Solar Systems

Plug-in solar systems offer a straightforward way for homeowners and renters to generate their own electricity. These systems typically consist of solar panels, an inverter, and often a battery for energy storage. They are designed for easy installation, connecting directly to a standard GFCI-protected outlet on a dedicated circuit. It's crucial to understand that these systems MUST connect to a GFCI-protected outlet on a dedicated circuit, not just any standard outlet. This is a critical safety requirement, with NEC Articles 690 and 705 applying to these installations.

System Sizing Tiers:

• Starter: 400–1,200W panels + 1–2 kWh battery
• Mid-Range: 800–1,600W panels + 2–3 kWh battery
• High Output: 1,600–2,400W panels + 3–5 kWh+ battery

Battery Capacity Tiers:

• Entry: 1–2 kWh
• Standard: 2–3 kWh
• Extended: 3–5 kWh+

Federal-Level Activity: Past and Present

While much of the recent legislative action for plug-in solar has been at the state level, federal policies have historically played a significant role in shaping the renewable energy landscape. The most notable federal incentive, the Investment Tax Credit (ITC), provided a substantial 30% tax credit for solar installations. However, as of December 31, 2025, the federal ITC has expired for new purchases. This means that while purchases made in 2025 are still eligible for the credit on 2025 tax returns, new plug-in solar systems bought in 2026 and beyond will not qualify for this federal incentive. This shift places a greater emphasis on state and local initiatives to drive plug-in solar adoption.

Beyond direct incentives, federal regulations, particularly those related to electrical codes, continue to influence plug-in solar. The National Electrical Code (NEC) Articles 690 (Solar Photovoltaic (PV) Systems) and 705 (Interconnected Electric Power Production Sources) are highly relevant. It's important to note that Article 625, which pertains to Electric Vehicle (EV) charging, does NOT apply to plug-in solar installations. These NEC articles ensure the safe and proper integration of plug-in solar systems with the existing electrical grid, emphasizing the need for GFCI-protected outlets on dedicated circuits.

State-Level Legislative Roundup 2026

✅ Enacted: Utah — HB 340 (2025)

Utah was the first U.S. state to explicitly legalize plug-in solar. As of May 2026, five states have enacted laws (Utah, Maine, Virginia, Colorado, Maryland). House Bill 340, signed by Governor Spencer Cox in March 2025, exempts plug-in solar systems under 1,200W from utility interconnection permits and allows self-installation without a licensed electrician. The bill passed both chambers unanimously. Inverters must be certified to UL 1741 (anti-islanding per IEEE 1547). Utah's law is the national blueprint — every subsequent state bill has referenced it.

✅ Enacted: Maine — LD 1730 (April 6, 2026)

Maine's LD 1730 was signed into law by Governor Janet Mills (D) on April 6, 2026, making Maine the second enacted state for plug-in solar, joining Utah. The law allows plug-in solar devices up to 1,200W for all retail electricity customers — renters and homeowners alike. It introduces a two-tier structure: systems ≤420W are DIY-allowed with no utility notification required; systems >420W require a licensed electrician and utility notification within 30 days. Maine is also the first US state law to reference UL 3700 by name — the national plug-in solar safety standard published in December 2025. At 27.9¢/kWh, Maine has one of the strongest financial cases for plug-in solar in the country: an 800W system saves an estimated $270/year with a ~5-year payback at no subsidy.

✅ Enacted: Virginia — HB 395 (April 22, 2026)

Virginia passed plug-in solar legislation with overwhelming bipartisan margins: the House voted 96-0 and the Senate voted 30-8. Governor Abigail Spanberger initially sent recommended amendments back to the House on April 11, 2026, and the House accepted the amendments. Governor Spanberger signed the bill on April 22, 2026, making Virginia the third enacted state and the first in the Mid-Atlantic region. Most provisions take effect July 1, 2026. Track the latest at the Virginia state detail page.

California: SB 868 (Plug and Play Solar Act) — In Assembly Appropriations

California's SB 868 passed the full California Senate 35-1 on May 20, 2026 and cleared the Assembly Utilities & Energy Committee on June 10, 2026. The bill now moves to the Assembly Appropriations Committee, which will hear it in August 2026. It is NOT yet enacted — the Assembly must pass it by August 31, 2026. If signed by Governor Newsom, the law would take effect January 1, 2027.

New Jersey: S 2368 — Passed Senate 38-0

New Jersey's S 2368 passed the full Senate 38-0 on March 23, 2026 — the strongest Senate vote of any plug-in solar bill in 2026. The bill is now in the Assembly awaiting a committee hearing. New Jersey has high electricity rates (~$0.23/kWh average, higher in urban areas) and a large renter population, making this one of the highest-impact bills in the country.

Massachusetts: H 4744 — Passed House

Massachusetts' H 4744 passed the House and is now in the Senate. With electricity rates averaging ~$0.33/kWh — among the highest in the continental US — Massachusetts residents stand to gain more from plug-in solar than almost any other state. Governor Healey (D) is expected to sign if the bill reaches her desk.

✅ Signed Into Law: Maryland — HB 1532 (Utility RELIEF Act, Chapter 353)

Governor Wes Moore signed Maryland's Utility RELIEF Act (HB 1532) into law on May 12, 2026 as Chapter 353, making Maryland the 5th US state to enact plug-in solar legislation. HB 1532 allows systems up to 1,200W, with systems ≤391W exempt from UL certification. Utilities cannot require approval before installation. The law applies to renters and homeowners. The law is effective immediately upon enactment. See the Maryland state detail page or the Maryland HB 1532 article.

New Hampshire: SB 540-FN — Passed Both Chambers, Awaiting Governor Ayotte

New Hampshire's SB 540-FN passed the Senate and received a 6-0 "Ought to Pass" vote from the House committee in March 2026. The full House passed the bill on May 14, 2026. The bill is now on Governor Kelly Ayotte's desk awaiting signature.

Vermont: S. 202 — House Concurrence Vote Pending (May 19, 2026)

Vermont's S. 202 passed the Senate 29-0 in January 2026, and the House passed it with amendments on May 6, 2026. The Senate concurred on May 14 but added a tenant notice provision (tenants must give 10 days written notice to landlords before installing). The House must concur with this further amendment — the vote is on the House Action Calendar for May 19, 2026. Vermont has strong clean energy momentum and high electricity rates.

✅ Signed Into Law: Colorado — HB 26-1007

Governor Jared Polis signed Colorado's HB 26-1007 into law on May 7, 2026, making Colorado the 4th US state to enact plug-in solar legislation. The law allows systems up to 1,920W — the highest limit of any US plug-in solar law — prohibits utilities from requiring pre-approval, prohibits HOA bans, and also covers meter-collar adapters. Rules take effect January 1, 2027. See the Colorado state detail page or the Colorado HB 26-1007 article.

Illinois: SB 3104 — Passed Senate Energy Committee 9-4

Illinois' SB 3104 passed the Senate Energy Committee 9-4 on March 12, 2026, and is on the calendar for a 3rd Reading floor vote. Multiple companion bills (HB 4371, HB 4516) are also advancing. Illinois has the largest renter population of any state with an active bill.

Connecticut: HB 5340 — Passed Energy Committee

Connecticut's HB 5340 passed the Energy and Technology Committee on March 5, 2026, and is advancing through House committees. Connecticut has high electricity rates (~$0.28/kWh) and a strong clean energy policy environment.

Oklahoma: HB 4060 — Passed House Committee 8-0

Oklahoma's HB 4060 passed the House Utilities Committee 8-0 on March 4, 2026, with bipartisan support. It is now in Senate committees. Oklahoma would be the first red-state enactment after Utah.

Hawaii: SB 2902 — Passed Senate

Hawaii's SB 2902 passed the Senate and is now advancing through House committees. Hawaii has the highest electricity rates in the country (~$0.38/kWh), making plug-in solar extremely cost-effective for residents.

Also Active: New York, Pennsylvania, South Carolina, Iowa, Alaska, Idaho, Rhode Island, Minnesota, Ohio, Michigan, Washington D.C.

These states all have introduced bills in committee. New York's S 8512 faces significant utility opposition (Con Edison). Pennsylvania, South Carolina, Iowa, Alaska, and Idaho have bills in House committees. Rhode Island, Minnesota, Ohio, and Michigan have introduced bills awaiting committee hearings. Washington D.C.'s B26-0602 is in the DC Council's Committee on Transportation and the Environment.

What Makes Plug-In Solar Legislation Succeed or Fail?

The success or failure of plug-in solar legislation hinges on several critical factors, often involving a delicate balance between innovation, safety, and stakeholder interests.

Factors for Success:

• Clear Safety Standards: Legislation that explicitly references and requires compliance with established safety standards like UL 3700 is more likely to gain traction. This addresses utility concerns about grid stability and public safety.
• Simplified Interconnection: Bills that streamline or exempt small systems from burdensome interconnection agreements are highly effective. The goal is to make it as easy as possible for consumers to plug in their systems without excessive bureaucracy.
• Broad Coalition Support: Successful legislation often has the backing of a diverse group, including environmental advocates, consumer protection groups, solar industry associations, and even forward-thinking utilities.
• Economic Benefits: Highlighting the economic advantages, such as reduced electricity bills and local job creation, can sway legislators and the public.
• Addressing Utility Concerns: Proactive engagement with utilities to address their concerns about grid impact, safety, and revenue can lead to more collaborative and successful legislative outcomes.

Factors for Failure:

• Utility Opposition: Strong opposition from utility companies, often citing concerns about grid stability, safety, or revenue loss, can significantly hinder legislative progress.
• Lack of Clear Standards: Ambiguous or absent safety and interconnection standards can lead to legislative stagnation, as lawmakers and utilities are hesitant to approve systems without clear guidelines.
• Overly Complex Regulations: Bills that introduce new layers of bureaucracy or complex technical requirements can inadvertently stifle adoption, defeating the purpose of plug-in solar.
• Misinformation and Misconceptions: A lack of public understanding or the spread of misinformation about plug-in solar's safety and benefits can create resistance.
• Political Gridlock: Broader political dynamics and legislative priorities can sometimes overshadow even well-intentioned plug-in solar bills.

How to Support Plug-In Solar Legislation in Your State

Your voice can make a significant difference in advancing plug-in solar in your state. Here are actionable steps you can take:

• Educate Yourself: Understand the benefits of plug-in solar, the relevant safety standards (UL 3700, NEC 690, 705), and the specific legislative efforts in your state.
• Contact Your Legislators: Reach out to your state representatives and senators. Express your support for plug-in solar legislation, highlighting its benefits for consumers, the environment, and energy independence.
• Join Advocacy Groups: Many environmental and solar advocacy organizations are actively working on plug-in solar initiatives. Joining these groups can amplify your impact.
• Share Your Story: If you are a plug-in solar user or are interested in becoming one, share your experiences and motivations with policymakers and the public. Personal stories can be powerful.
• Participate in Public Hearings: Attend legislative hearings or public forums where plug-in solar bills are being discussed. Your presence and testimony can influence outcomes.
• Spread Awareness: Talk to your friends, family, and community about plug-in solar. The more people understand its potential, the stronger the public support for favorable legislation.

Summary of Active Plug-In Solar Bills (2026)

This table provides a snapshot of key plug-in solar legislative efforts across the United States as of April 2026. Please note that legislative statuses can change rapidly.

Payback Periods and Electricity Rates

The financial viability of plug-in solar systems is a significant consideration for many potential adopters. The payback period—the time it takes for the energy savings to offset the initial investment—variates depending on several factors, including system cost, local electricity rates, and usage patterns.

• National Average Payback: The national average payback period for plug-in solar systems is typically 5–7 years.
• High-Rate States: In states with higher electricity rates, such as California (CA), Massachusetts (MA), and Connecticut (CT), the payback period can be significantly shorter, often ranging from 3–5 years, especially with Time-of-Use (TOU) optimization. TOU optimization involves strategically using stored solar energy during peak electricity rate hours, maximizing savings.

Average Electricity Rates (as of April 2026):

• National Average: ~$0.18/kWh
• California (CA): ~$0.34/kWh
• Massachusetts (MA): ~$0.32/kWh
• Connecticut (CT): ~$0.28/kWh

These figures highlight why plug-in solar can be particularly attractive in regions with higher energy costs, offering a quicker return on investment and substantial long-term savings.

The Resilience Driver: Why Grid Reliability Is Shaping Plug-In Solar Legislation

The legislative momentum behind plug-in solar in 2025–2026 is not purely environmental or economic. A third driver — grid resilience and emergency preparedness — is increasingly prominent in bill language, committee testimony, and sponsor statements across multiple states.

Colorado HB 26-1007 sponsors cited the state's growing wildfire risk and the need for distributed backup power as key justifications. Maine's LD 1939 was partly framed around the state's vulnerability to nor'easters and ice storms, which have caused multi-day outages affecting hundreds of thousands of residents. California SB 868 advocates have highlighted Public Safety Power Shutoffs (PSPS) as a reason renters — who cannot install rooftop solar or whole-home batteries — need access to plug-in alternatives.

This resilience framing is strategically important: it broadens the coalition of supporters beyond environmental advocates to include emergency management officials, rural communities, and residents with medical equipment that requires continuous power. It also provides a compelling answer to the question of why plug-in solar matters even in states with low electricity rates — the value of backup power during an outage is independent of the cost of grid electricity.

As more states experience severe weather events, expect resilience arguments to feature more prominently in future plug-in solar legislation. Bills that explicitly allow battery-backed plug-in systems to operate in island mode during outages will be particularly significant for consumers.

Next Steps

Understanding the legislative landscape is just one part of your plug-in solar journey. To continue learning and take action, explore these resources:

• Explore State-Specific Information: Learn more about plug-in solar regulations and incentives in your state by visiting our States page.
• Assess Your Readiness: Determine if plug-in solar is right for you with our comprehensive Readiness Guide.
• Generate a Letter to Your Landlord or HOA: If you're a renter or live in an HOA, use our Letter Generator to advocate for your right to install plug-in solar.
• Find the Right System: Ready to choose a system? Our Buyer's Guide will help you navigate the options.

Sources

• Canary Media: Balcony Solar State Tracker
• WRI: Enabling Plug-In Solar in States