A buried provision in Connecticut's renewable energy bill removes a major barrier to small solar deployment—and it takes effect in less than two years.
Most construction and trades owners don't realize that Connecticut law currently requires even the smallest rooftop solar installations to go through a formal utility interconnection process. That means applications, fees, paperwork, waiting periods, and sometimes utility-mandated equipment upgrades—even for systems so small they pose no real grid risk.
Connecticut's HB05340, An Act Concerning Renewable Power Generation, changes that. Buried in Section 9 (Page 22) is a provision that exempts qualifying portable solar devices from the entire interconnection-agreement process, effective October 1, 2026.
The exemption applies to plug-in solar devices that meet three criteria: they produce no more than 1,200 watts, they are UL-listed (a standard safety certification), and they connect to a standard 120-volt household outlet. These are typically small rooftop or ground-mounted systems designed for residential or light commercial use.
Currently, owners installing even these modest systems must file an interconnection agreement with their utility company. This process involves:
• Application fees (often $100–$500)
• Technical documentation and engineering reviews
• Waiting periods (sometimes weeks or months)
• Potential requirements to upgrade electrical equipment at the customer's expense
Under the new provision, qualifying systems bypass all of this. Owners can install and operate them without utility approval, application, or fees—provided the device meets the technical standards.
For construction and trades professionals, this matters in several ways:
Contractors and installers: You can offer small solar installations to residential and small-business customers without navigating utility bureaucracy. This removes a friction point that currently discourages customers from pursuing small solar projects.
Electricians: Work on these systems remains straightforward—you're connecting a UL-listed device to a standard outlet. No special utility coordination or approvals needed.
Small business owners: If you're considering a small rooftop solar system for your shop, office, or warehouse, the cost and timeline just dropped significantly. No interconnection fees. No waiting for utility approval.
The exemption takes effect October 1, 2026. That gives you roughly 18 months to understand the rule, plan any changes to your sales or service offerings, and prepare customers for the shift.
This provision removes a real barrier to small solar adoption. For years, the interconnection process has been a speed bump—sometimes a deal-breaker—for customers interested in modest rooftop systems. Once October 2026 arrives, that barrier disappears for qualifying devices. If you work in construction, electrical contracting, or solar installation, this is worth understanding now so you can explain it to customers and adjust your processes accordingly.
Source: Connecticut HB05340, Section 9, Page 22. Effective October 1, 2026.