Behind the Bill: How Vermont Made Plug-In Solar Simple for Consumers
By PlugInSolarUS Editorial · Published 2026-07-01 · 20 min read
Sen. Anne Watson and VPIRG’s Ben Edgerly Walsh explain why Vermont removed utility notification, anchored safety in national standards, and created a future pathway for renters and everyday consumers.
Editor’s Note: This article is part of PluginSolarUS.com’s “Behind the Bill” series, which explores how different states are approaching plug-in solar legislation, consumer access, safety, and implementation. This article is based on interviews with Sen. Anne Watson and Ben Edgerly Walsh of VPIRG. Statutory details, standards language, product availability, and direct quotes have been verified before publication. For a full overview of Vermont’s plug-in solar status, see our Vermont state page.
A simple law for a market that is still arriving
Vermont’s plug-in solar story begins with a simple design choice: make the consumer pathway as easy as possible, but do not pretend the technology and standards are finished.
Sen. Anne Watson first became interested in plug-in solar after hearing about Utah’s early law. The idea seemed well matched to Vermont: small-scale, practical, renewable, and understandable to ordinary residents. It offered a way for people to generate some of their own power without going through the full process required for traditional rooftop solar.
For many households, solar has long felt like an all-or-nothing decision. A homeowner with the right roof, enough capital, and the ability to navigate permitting, interconnection, and installation can pursue rooftop solar. A renter, condo owner, apartment resident, or household with an unsuitable roof often cannot.
Plug-in solar offers a different entry point. Instead of treating solar only as a full rooftop project, it treats small customer-owned generation as a consumer-facing product that can offset part of a home’s electricity use.
Vermont’s final law reflects that idea. It does not require utility notification, utility application, or a separate utility approval process. At the same time, it keeps safety at the center by relying on UL 3700 and National Electrical Code compliance. The result is a law designed for today’s safety realities and tomorrow’s consumer market.
How plug-in solar reached Vermont
Watson’s interest in the issue was shaped by three things: Utah’s example, Europe’s experience, and her own comfort with technical questions.
Utah showed that a U.S. state could create a legal pathway for plug-in solar. Europe showed that small balcony and portable solar systems could become familiar consumer products. Watson’s background as a physics teacher helped her engage with the electricity, grid, and safety questions that came up during the bill process.
She was careful not to describe herself as an electrical expert. But she said her science background helped her understand enough about electricity and the grid to work through the safety and implementation questions with stakeholders.
That combination made plug-in solar feel like a practical Vermont idea: not a replacement for rooftop solar, but a way to expand participation in renewable energy for people who had not had an easy path before.
Why plug-in solar matters in a renewable-energy state
Vermont already has a Renewable Energy Standard requiring distribution utilities to reach 100% renewable electricity by 2035. That raises an obvious question: why does a small consumer-owned solar device matter in a state already moving toward renewable power?
Watson’s answer was straightforward. Additional renewable generation in the ISO New England region can still help offset fossil generation somewhere on the broader grid. Just as important, a small system can help a household reduce its own electric bill.
That makes plug-in solar both a renewable-energy tool and an affordability tool. It will not power an entire home. It will not solve regional electricity-demand challenges by itself. But it gives more residents a direct way to participate in clean energy and feel less exposed to rising utility costs.
For Watson, the consumer lens mattered. Her goal was not only to pass a renewable-energy bill. It was to make the pathway simple, straightforward, and low-hassle for residents.
VPIRG’s role: access, equity, and public excitement
For Ben Edgerly Walsh of VPIRG, the core issue was access.
VPIRG is Vermont’s largest environmental and consumer protection advocacy organization, with roughly 25,000 members and supporters across the state. The organization works heavily on state legislative policy, public education, door-to-door outreach, member communication, and grassroots advocacy.
VPIRG launched its plug-in solar effort in summer 2025 after seeing Utah’s law and connecting with BrightSaver. It began working with elected officials, especially Watson, and formally kicked off the effort with a press conference later that year.
The public response was unusually positive. Walsh said many climate and energy policies are important but abstract. Plug-in solar was different. VPIRG could bring a panel and a plug-in unit to events, and people could immediately understand the concept and imagine using it themselves.
That mattered politically. A proactive clean-energy policy is often hard to explain. Plug-in solar shortened the path from awareness to interest because it was tangible. People could see it, ask about it, and picture it on a balcony, deck, or yard.
The access problem Vermont was trying to solve
VPIRG framed plug-in solar around people who had not had a practical path into direct renewable-energy participation.
Traditional net metering and rooftop solar have worked for many property owners, but they have not worked equally for renters, people in multifamily housing, people without suitable roofs, or households without the money or authority to pursue a full solar project.
Walsh emphasized that the excluded group is not random. Because of Vermont’s rental demographics, the residents left out of direct solar access are disproportionately lower income and disproportionately Vermonters of color, especially Black Vermonters.
Plug-in solar does not solve that problem overnight. But it makes a new kind of access possible. Instead of requiring a resident to own a roof, have a yard suitable for a permanent ground-mounted solar array, sign a full solar contract, or participate in a limited community-solar structure, the technology points toward a smaller and more portable way to begin. Permanent ground-mounted systems are fairly common in rural Vermont, but they are also generally unavailable to renters and residents without control over suitable land.
No notification, no utility gatekeeping
One of the most distinctive parts of Vermont’s law is what it does not require.
Watson originally included a utility-notification requirement because early conversations suggested utilities wanted to know where plug-in systems were being installed. But during testimony, utilities changed their position. They concluded that small compliant systems would mostly look like reduced load, similar to a more efficient appliance, rather than like a conventional grid-exporting solar project.
The refrigerator analogy helped define Vermont’s final approach. Utilities do not require customers to notify them when they buy a more efficient refrigerator. If a small plug-in solar device primarily offsets on-site use, utilities did not see much value in collecting notifications they would not act on.
The final bill therefore removed utility notification. That makes Vermont different from states that use a notification-but-not-permission model. Vermont’s approach is closer to treating plug-in solar as a consumer product governed by safety standards rather than as a miniature interconnection project.
Safety through standards
Watson described the legislative process as surprisingly smooth. The main concern was not broad political opposition. It was safety.
Vermont addressed that concern by anchoring the law in national standards. The final framework relies on UL 3700 compliance and National Electrical Code compliance, rather than asking state lawmakers to write their own technical electrical rules from scratch.
That standards-first approach made the bill easier to defend. It also created a practical limitation: the law can open a pathway, but consumers still need compliant products that actually meet the standard.
In other words, Vermont may be ready before the market is fully ready. That is not unusual for a new category. But it means the next stage depends heavily on product certification, consumer labeling, retailer education, and clear guidance for residents.
The renter promise — and the near-term caveat
Renters were one of the original reasons the bill mattered. Both Watson and Walsh saw plug-in solar as a way to reach people who cannot install solar on a roof they do not own. Condo owners were another important group, especially people who may have some control over their unit but face roof, common-area, or association barriers.
But Vermont’s renter story is more nuanced than simply saying the law unlocks plug-in solar for every tenant immediately.
Walsh said Vermont embraced UL 3700 without adding a separate small-system plug-and-play carve-out like the approach discussed in some other states. Because UL 3700 and near-term compliant systems will require wiring, an isolated circuit, or other electrical work, renters will not be able to proceed without landlord permission. In practical terms, the cost and complexity of doing that work on a unit they do not own is expected to be a major barrier even when a landlord would grant permission.
Watson made a similar point. Renters remain an intended beneficiary, but electrician involvement or rewiring may limit near-term usefulness. Condo owners and property owners may benefit sooner while technology and standards continue to evolve.
That honesty is important. Vermont’s law is not a promise that every renter can install a system tomorrow. It is a pathway that becomes more powerful as no-wiring, appliance-like systems become available.
Avoiding a permanent landlord veto
One of the most important late-session issues involved landlord rights and tenant access.
Walsh said one version of the bill could have effectively given landlords a permanent blanket veto over tenant systems unless Vermont later amended the law. Under Watson’s leadership, the Senate changed that language and sent it back to the House.
The final structure recognizes a practical safety and property rule: a tenant cannot cause electrical work to be done in a rental unit without landlord permission. In the near term, that means landlords may still have practical control if wiring or electrical work is required.
But the law is designed not to give landlords a permanent no. Once compliant systems are available that do not require wiring and function more like appliances, landlords should not be able to block them without a valid reason. They may impose reasonable restrictions, such as how a device is mounted or secured, but the goal is to avoid a blanket veto.
That is why Vermont’s law can be described as future-proof. It may not deliver the full renter-access vision immediately, but it avoids closing the door on that vision once the products catch up.
What has to happen next
The next phase is implementation.
Consumers need to know which products are compliant. Retailers need confidence in what they are selling. Electricians, inspectors, landlords, condo associations, and local energy groups need practical guidance. Advocates need to avoid overpromising before certified products are available.
Walsh identified the main bottleneck as the availability of UL 3700-certified systems. At the time of his interview, he understood that certified systems were not yet on the market, though products were expected to emerge. That status should be checked before publication and updated regularly because Vermont’s pathway depends on compliant products.
Watson also emphasized consumer labeling. A resident should be able to tell whether a product meets Vermont’s requirements. Ideally, someone could eventually walk into a local hardware store, see a clearly labeled compliant product, and understand what it can and cannot do.
That is where independent information matters. Walsh said VPIRG members were already asking where they could buy systems. A neutral information hub could help residents avoid confusion, especially while the market includes products that may look similar but do not meet Vermont’s legal or safety requirements.
How adoption could spread
Consumer education will matter, but Walsh does not expect adoption to depend only on top-down campaigns.
VPIRG has been talking with the Vermont Natural Resources Council, which works with town energy committees around the state. Those committees could help residents understand the technology, the rules, and the practical steps once compliant products are available.
But plug-in solar may also spread the way rooftop solar often spreads: through visibility and word of mouth. A renter sees a friend’s system. A condo owner notices a neighbor’s device. A resident hears that someone is saving a little money and starts asking questions.
Because plug-in solar is smaller, cheaper, and more visible than a rooftop array, that peer-to-peer effect could be even stronger. The savings may be modest, but relative to the upfront investment, the product could become compelling if costs fall and electric rates continue to rise.
A gateway into the clean-energy transition
Walsh also sees plug-in solar as a gateway technology.
Instead of telling households they must follow a strict sequence — first efficiency, then electrification, then solar, then storage — he argued that advocates should meet people where their interest begins. If plug-in solar is the thing that gets someone excited, that is a valid starting point.
A young renter who uses plug-in solar in an apartment may later buy a home and consider rooftop solar. A household that sees value from a small system may later consider a battery, a heat pump, an EV, or additional efficiency upgrades.
Watson’s framing points in the same direction. She described plug-in solar as empowering for grid-connected customers because it gives them a way to generate some of their own renewable electricity. Even if the system is small, the psychological shift can be large: a consumer becomes an energy participant, not only an energy bill payer.
Lessons for other states
Vermont’s experience offers several lessons for other states considering plug-in solar legislation.
First, simplicity matters. Removing unnecessary utility process can make a small consumer technology feel like a real consumer option rather than a regulatory project.
Second, safety language matters. Vermont leaned on UL 3700 and the National Electrical Code instead of creating state-specific technical rules. That helped address safety concerns, but it also tied adoption to the availability of standards-compliant products.
Third, policy design should be decided early. Walsh said one regret from Vermont’s process was that advocates did not lay the groundwork from the beginning for a small-system plug-and-play carve-out like the 391-watt approach discussed in other states. Adding a new carve-out late is harder than defending one that has been in the bill from the start.
Finally, public excitement is an asset. Many energy policies require long explanations before people care enough to contact lawmakers. Plug-in solar is different. Once people understand the idea, many become interested quickly. That grassroots enthusiasm can help move a proactive clean-energy policy through the Legislature.
A message to Vermont residents
Watson’s message to residents was straightforward: if you do not already have solar, especially if you are a renter or condo owner, plug-in solar is worth watching and eventually worth looking for at local hardware stores as compliant products arrive.
Walsh described the larger promise this way: plug-in solar could become the first form of renewable energy that is truly accessible to almost everyone. Vermont is not fully there yet. Product certification, wiring questions, and renter access still need to mature. But the legal pathway is now open.
That is the heart of Vermont’s contribution to the national plug-in solar movement. The state did not pretend the market is finished. It did not overcomplicate the utility process. It treated safety seriously, removed notification, and protected a future pathway for renters once no-wiring systems become practical.
If those pieces come together, Vermont’s law may be remembered not simply as a plug-in solar bill, but as a consumer-access model: simple now, broader later, and built for a market that is still arriving.
Source Notes: Primary sources for this article include interviews with Sen. Anne Watson regarding Vermont S.202 and plug-in / portable solar photovoltaic devices, and Ben Edgerly Walsh of VPIRG regarding Vermont plug-in solar legislation, advocacy, renter access, UL 3700, landlord provisions, implementation, and consumer education. Direct quotes from interviews have been lightly edited only where needed for readability. Exact quotes have been confirmed with the speakers before publication.
Disclaimer: PluginSolarUS.com provides general educational information only. This article is not legal, electrical, engineering, product-safety, installation, or financial advice. Before purchasing or installing any plug-in solar, portable solar, solar-plus-storage, battery, inverter, or related electrical product, consumers should confirm current requirements with applicable state law, local building and electrical authorities, fire officials where relevant, their utility where applicable, their landlord or HOA where applicable, and qualified professionals. Consumers should use only properly certified or listed products that comply with applicable safety standards, electrical codes, manufacturer instructions, and local requirements. Laws, standards, utility rules, product certifications, billing practices, metering requirements, and installation requirements may change over time. Nothing in this article should be interpreted as a recommendation to install any electrical product in a way that violates applicable codes, utility rules, manufacturer instructions, lease terms, HOA rules, or safety requirements.