In a significant ruling on July 24, 2026, the Appellate Division of the Supreme Court of New York reversed a previous decision that granted a solar developer a tax exemption for its property in East Bloomfield. The case, known as Matter of Solar Advocate Dev., LLC v. Assessor for Town of E. Bloomfield (Docket No. 213.2CA 24-02021), impacts how local governments can manage tax exemptions for renewable energy systems.

The court's ruling affects Solar Advocate Development, LLC, which had sought a property tax exemption after constructing a $3.1 million solar energy system. The decision is crucial as it clarifies the requirements for local governments to opt out of tax exemptions for solar energy systems, potentially influencing future projects and investments in renewable energy.

Solar Advocate Development, LLC is the petitioner in this case, challenging the assessment of its property for tax purposes. The company applied for a tax exemption under New York's Real Property Tax Law (RPTL) after constructing its solar system. The Town of East Bloomfield and Ontario County were named as respondents in the case.

The dispute arose when the County denied the exemption application, claiming it had opted out of the RPTL 487 tax exemption provisions. The County argued that its local law opting out of the exemption was valid, even though it had not filed the law with the New York State Energy and Research Development Authority (NYSERDA), as required by RPTL 487 (8) (a).

The case reached the Appellate Division after the Supreme Court in Ontario County ruled in favor of Solar Advocate Development, granting the tax exemption and ordering the County to refund any overpayments. The County appealed this decision, leading to the current ruling.

The Appellate Division unanimously reversed the lower court's judgment, stating that the County's local law opting out of the tax exemption was valid despite the failure to file with NYSERDA. The court emphasized that the filing requirements were not essential for the law's validity. The ruling stated, "the County adopted a local law opting out of RPTL 487 (2) before petitioner constructed its solar energy system, petitioner is not entitled to a partial tax exemption under the statute."

The judges involved in the ruling included Lindley, Bannister, Greenwood, Nowak, and Hannah. They concluded that the local law's validity was not contingent on the filing with NYSERDA, reversing the earlier decision that granted the exemption.

This ruling has significant implications for solar developers and local governments in New York. It clarifies that local governments can effectively opt out of tax exemptions for solar energy systems without needing to file with NYSERDA. This could lead to more stringent local tax policies regarding renewable energy projects, potentially discouraging investment in solar energy.

The court's decision also highlights the importance of legislative clarity in tax exemption laws. The ruling referenced RPTL 497 (2), which was enacted after a previous case (Matter of Laertes Solar, LLC v. Assessor of the Town of Harford) that had similar issues regarding the filing requirements for local laws. The Appellate Division noted that RPTL 497 (2) clarified that a failure to file with state agencies does not invalidate a local law opting out of tax exemptions.

As a result of this ruling, solar developers may face increased challenges in securing tax exemptions for their projects in areas where local governments have opted out. This could lead to a reevaluation of investment strategies for renewable energy projects in New York.

Looking ahead, the County of Ontario may not appeal this decision, as the ruling provides a clear interpretation of the law regarding local opt-out provisions. However, it could influence similar cases in the future, especially as more municipalities consider their positions on renewable energy tax exemptions.

Details were not available in the court filing regarding any related cases pending or further legislative actions that may arise from this ruling.