If you are searching for the worst solar companies in Connecticut, you are likely trying to avoid costly mistakes before signing a long-term solar contract. That concern is valid. Solar panels are supposed to reduce electricity bills, not create billing disputes, roof damage, or years of frustration with warranties and service calls.
When people ask what the worst solar companies in CT are, they are usually referring to installers and providers with repeated complaints around misleading sales tactics, financing confusion, system underperformance, delayed installations, and poor customer support. Connecticut’s solar market has grown quickly due to incentives like net metering and state-backed financing, but that growth has also brought inconsistent service quality across providers.

Below, I break down ten poorly rated solar companies operating in Connecticut. These are real companies with documented customer issues, consumer complaints, or recurring service problems. The goal here is not to discourage solar adoption, but to help homeowners understand where things often go wrong so they can make a more informed decision.
10 Poorly Rated Solar Companies Operating In Connecticut
Before diving into individual companies, here is a snapshot of the providers discussed in this article. These firms have received notable criticism related to contract terms, installation delays, billing practices, or customer support challenges.
| Company Name | Primary Issue Reported | Common Customer Complaints |
| Sunrun | Long contracts and billing disputes | Lease confusion, slow service |
| Trinity Solar | Aggressive sales methods | Contract pressure, unclear pricing |
| Vivint Solar | Sales transparency concerns | Misleading projections |
| SunPower | High pricing for underperformance | Warranty delays, system issues |
| Momentum Solar | Installation and communication gaps | Project delays, follow-ups |
| Tesla Solar | Service backlog | Repair wait times, support access |
| Green Power Energy | Inconsistent workmanship | Roof issues, monitoring problems |
| Sunlight Solar Energy | Financing clarity | Loan structure confusion |
| Empower Energy Solutions | Post-install support | Limited response after install |
| PosiGen | Restricted system customization | Limited homeowner control |
Sunrun
Sunrun is one of the largest residential solar providers in the United States, and its presence in Connecticut is significant. Size alone does not guarantee quality, and many homeowners report frustration after signing Sunrun agreements.
A frequent issue involves long-term solar lease contracts. Many customers later realize that exiting or transferring the agreement during a home sale is far more difficult than expected. Monthly payment escalators are often buried deep within contract language, which can lead to higher-than-anticipated costs over time.
Another recurring complaint relates to customer service response times. Homeowners report waiting weeks or even months for system repairs, inverter replacements, or billing corrections. For a system that is supposed to run quietly in the background, these delays create ongoing stress.
Sunrun customers in Connecticut have also mentioned:
- Confusion around net metering credits
- Difficulty reaching knowledgeable support agents
- Delays in system activation after installation
Trinity Solar
Trinity Solar has operated in the Northeast for decades and markets itself as a family-run business. Despite this image, customer reviews in Connecticut reveal recurring issues tied to sales pressure and contract clarity.
Many homeowners describe sales visits that felt rushed or overly persuasive. Some customers say they agreed to installations without fully understanding system ownership, maintenance obligations, or long-term costs. Once the paperwork is signed, changes become difficult.
Installation timelines are another concern. While initial promises often suggest quick turnarounds, some Connecticut homeowners report waiting several months between signing contracts and system activation. This can be especially frustrating when utility bills remain unchanged during the wait.
Reported issues include:
- Misaligned expectations around savings
- Limited explanation of equipment brands
- Delays tied to permitting and inspections
Vivint Solar
Vivint Solar, now operating under Sunrun ownership, still carries a legacy reputation that affects its standing in Connecticut. The most common criticism centers on sales transparency.
Homeowners often report that projected savings were overstated during consultations. Actual energy production sometimes falls short of expectations, particularly when shading or roof orientation was not properly assessed. These gaps become more obvious after the first year of system operation.
Another issue involves contract complexity. Vivint agreements are often lengthy and filled with technical language that can overwhelm first-time solar buyers. Customers who later try to resolve billing or performance issues sometimes find themselves bounced between departments.
Connecticut customers frequently mention:
- Discrepancies between promised and actual output
- Confusing monitoring tools
- Limited options for contract modification
SunPower
SunPower is known for high-efficiency solar panels and premium pricing. In Connecticut, that premium has not always translated into premium service.
One major complaint involves cost versus performance. Homeowners paying top-tier prices expect seamless operation and fast support. When systems underperform or components fail, long warranty processing times can quickly sour the experience.
Another concern is installer dependency. SunPower often works through authorized dealers, which means service quality can vary widely. Customers may struggle to determine whether issues should be handled by the installer or the manufacturer.
Common concerns raised include:
- Delays in warranty claims
- Slow replacement of faulty panels
- Communication gaps between dealers and SunPower support
Momentum Solar
Momentum Solar has expanded rapidly across several states, including Connecticut. Rapid growth often strains internal operations, and that shows in customer feedback.
Installation delays are one of the most reported problems. Homeowners describe extended gaps between site assessments, installation dates, and final inspections. In some cases, projects stalled without clear explanations.
Communication is another sticking point. Customers say they had difficulty getting consistent updates or speaking with the same representative throughout the process. This creates confusion when timelines shift or paperwork needs revision.
Issues reported by Connecticut customers include:
- Missed installation deadlines
- Inconsistent points of contact
- Delays in utility approval coordination
Tesla Solar
Tesla Solar attracts homeowners with competitive pricing and sleek branding. However, its service model relies heavily on centralized systems, which can be problematic in Connecticut.
The most common issue is service backlog. When systems require maintenance or repairs, homeowners report long wait times before technicians are dispatched. Inverter failures or monitoring outages can linger unresolved for weeks.
Customer support access is another pain point. Tesla’s support channels are often digital-first, which frustrates homeowners who want to speak directly with a technician or local office.
Reported challenges include:
- Slow response to repair requests
- Limited local service presence
- Difficulty scheduling follow-up visits
Green Power Energy
Green Power Energy is a regional installer with a smaller footprint than national providers. While some customers report positive experiences, others highlight inconsistencies.
Workmanship issues are a recurring theme. Some homeowners experienced roof leaks or improper panel mounting that required corrective work. These problems are especially concerning given Connecticut’s seasonal weather changes.
Monitoring and system performance complaints also surface. Customers say they were not always informed when systems went offline or underproduced, leading to missed savings.
Commonly mentioned issues include:
- Roof penetration concerns
- Limited post-install check-ins
- Monitoring alerts not clearly explained
Sunlight Solar Energy
Sunlight Solar Energy operates in Connecticut with a focus on residential installations. The primary area of concern involves financing clarity.
Some homeowners report confusion around loan structures, interest rates, and payment schedules. Without a clear breakdown, customers may misunderstand the true cost of ownership over time.
Another issue relates to system sizing. A few Connecticut customers said their systems were not adequately designed to match household energy usage, resulting in continued reliance on grid electricity.
Reported concerns include:
- Financing terms not clearly explained
- Limited energy usage analysis
- Delays in addressing design questions
Empower Energy Solutions
Empower Energy Solutions positions itself as a customer-focused solar provider. Despite that promise, several Connecticut homeowners report post-installation support challenges.
Once systems are installed and payments begin, some customers say communication slows significantly. Requests for maintenance, system checks, or documentation can take longer than expected.
There are also reports of delays in resolving inspection-related issues, which can prevent systems from reaching full operational status promptly.
Common feedback includes:
- Slower response after installation
- Limited follow-up on performance concerns
- Delays in paperwork completion
PosiGen
PosiGen focuses on solar leasing models aimed at affordability. While this approach works for some homeowners, others in Connecticut report feeling restricted by limited customization.
Customers say system sizes and equipment options were not flexible enough to match specific household needs. This can result in lower-than-expected savings, especially for homes with higher energy consumption.
Another concern involves contract limitations. Lease terms may restrict homeowners from upgrading or modifying systems later.
Reported issues include:
- Limited control over system design
- Lease constraints during home sales
- Fewer equipment upgrade options
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Conclusion
The worst solar companies in CT are not defined by a single bad review, but by patterns that repeat across many customer experiences. Common warning signs include unclear contracts, aggressive sales tactics, delayed installations, and slow customer support. These issues can turn what should be a smart energy investment into a long-term headache.
Connecticut homeowners considering solar should take time to review contracts carefully, compare multiple installers, and ask direct questions about warranties, service response times, and system performance guarantees. Solar power can still be a strong option when done right, but knowing which providers struggle with consistency can help you avoid unnecessary frustration and protect your investment.
Frequently Asked Questions
How can I verify if a solar company in Connecticut has unresolved complaints
I usually start by checking the Connecticut Department of Consumer Protection database and the Better Business Bureau records. These sources often show patterns like repeated billing disputes or unfinished installations. Online reviews help too, but official complaint records give a clearer picture of unresolved issues.
Are poorly rated solar companies still eligible for state incentives in Connecticut
Yes, even low rated solar installers can work with state programs if they meet technical requirements. Incentives like net metering or financing options are tied to the system and utility approvals, not customer satisfaction. This is why it is important to separate incentive eligibility from service quality.
What contract terms should raise red flags when dealing with solar providers
Long contract lengths, steep annual payment increases, and unclear system ownership clauses are major warning signs. I also pay close attention to transfer clauses if the home is sold. If these sections are vague or overly technical, it is worth stepping back before signing.
Can switching solar companies fix performance or billing issues
In many cases, switching is not simple. Leases and power purchase agreements often lock homeowners in for decades. Even if the installer changes ownership, the original contract usually remains in force. That is why choosing carefully at the start matters more than trying to fix things later.
Do local Connecticut solar installers perform better than national providers
Not always, but local installers often offer faster site visits and easier communication. National companies may have standardized processes that cause delays in repairs or inspections. I look for consistency in reviews rather than company size when judging reliability.






