The Massachusetts Supreme Judicial Court ruled on July 14, 2026, that the town of Petersham improperly denied a special permit for a large-scale solar energy project proposed by Sunpin Energy Services, LLC. The court's decision is significant as it reinforces the state's commitment to renewable energy and clarifies the standards towns must meet when regulating solar projects. The ruling could have broad implications for similar projects across Massachusetts.

Sunpin Energy Services aimed to build a 4.3-megawatt solar energy system on a site that is primarily forested. The Petersham Zoning Board of Appeals denied the permit, primarily due to concerns about tree cutting, which one board member argued contradicted the town's zoning bylaw. This decision was challenged by Sunpin in court, leading to a series of legal proceedings that culminated in the Supreme Judicial Court's ruling.

The parties involved in this case include Sunpin Energy Services, LLC, a renewable energy company, and the Zoning Board of Appeals of Petersham, which is responsible for granting special permits for projects that do not conform to existing zoning laws. The dispute arose when Sunpin applied for a special permit to construct a solar energy system on land outside the designated solar electric overlay district, which is the only area in Petersham where such projects can be built as of right. The board's denial was based on the assertion that the project would require significant tree cutting, which one member believed was contrary to the intent of the town's zoning bylaw.

After the board denied the application, Sunpin filed a complaint in the Land Court, arguing that the board's decision was arbitrary and capricious. The Land Court initially sided with the board, but the Appeals Court later reversed that decision, stating that the board's denial was unreasonable. The Supreme Judicial Court then granted further review of the case.

The court concluded that under the Dover Amendment, which encourages solar energy development, towns must provide reasonable opportunities for solar projects and cannot deny permits without site-specific reasons related to public health, safety, or welfare. The court stated, "Where, as here, the town is ninety-seven percent forested and the application was denied primarily because of generally applicable concerns about tree cutting, such a denial is effectively a blanket prohibition on large-scale ground-mounted solar energy systems in the town." This ruling emphasized that municipalities cannot impose blanket restrictions that effectively prevent solar energy development.

The ruling means that towns like Petersham must carefully evaluate their zoning regulations concerning solar energy projects. The Supreme Judicial Court's decision reinforces the idea that concerns about environmental impact, such as tree cutting, must be balanced with the need for renewable energy. The court noted that denying permits based solely on potential deforestation is not sufficient; a detailed analysis of the specific site and its characteristics is required.

This decision could set a precedent for future cases involving solar energy projects in Massachusetts. It signals to municipalities that they must adhere to state laws that promote renewable energy and cannot impose unreasonable restrictions that hinder such developments. The ruling may encourage more solar projects in areas that have previously faced opposition due to environmental concerns.

Looking ahead, it is unclear whether the Zoning Board of Appeals of Petersham will appeal this decision. However, the court's ruling emphasizes the importance of complying with the Dover Amendment and ensuring that local regulations do not obstruct the state's renewable energy goals. The case highlights the ongoing tension between environmental preservation and the push for renewable energy solutions.