Documents & Articles

Documents, articles, and other information relevant to Mount Sinai residents.

Battery Energy Storage System Project

A proposal has been made to develop a Battery Energy Storage System within Mount Sinai. These facilities are being developed in New York State as a matter of law in support of the 2019 New York Climate Act that requires a shift to renewable energy. The Civic is engaged with the developer and other stakeholders to evaluate the merits of this proposal to determine if it is appropriate for our community. We are gathering information to objectively assess potential benefits and risks to our community before issuing an opinion on the merits of the proposal.

To aid the understanding of the project and provide clear information for the Civic Membership and community at-large, the Executive Board has prepared an extensive FAQ document covering a number of topics. This document will be updated as further details emerge.  Other information will be posted here as well as it becomes available.

Public Presentation from New Leaf Energy

New Leaf Energy, the project developer, attended the Civic’s May 6, 2024 meeting to provide information to and address questions from the public.  They have provided the below presentation that was shared at that meeting, as well as a fact sheet about battery systems and their safety record.  The Civic did not generate this information and provides it as a courtesy to the the community.

New Leaf Mt Sinai Civic Presentation -2024-5-6

American Clean Power
Energy Storage Safety Fact Sheet

Battery Storage System FAQ

In anticipation of community questions, the Mount Sinai Civic Association has created an FAQ document to present facts about the project.  This document is the result of in-depth conversations with New Leaf Energy (the developer), Energy Safety Resource Group (ESRG) (independent consultant to New Leaf), the Mount Sinai Fire Department, and other research taken from various sources.  This represents a good-faith effort by the Civic to gather in one place unbiased, factual information for community members to be informed on the proposal details.  This document will be periodically updated as information becomes available.

Mount Sinai Battery Storage System FAQ Document
Version 1.0.2, as of May 3 2024


Initial Street View Renderings

The Developer has provided some initial renderings of how the project may look from a street view.  The Civic has created a document that compares those renderings to the current street view so that the community can visualize the proposed changes.


Initial Opinion Letter

The Executive Board submitted a letter to the Town of Brookhaven in February 2024, stating the current status of the Civic’s position on the proposed battery energy storage facility.

Submitted to Town of Brookhaven February, 2024

February 2024 Letter to Town of Brookhaven

1996 Mount Sinai Hamlet Study

Hamlet Study Cover

Hamlet Study Cover

This study was conducted by residents of Mount Sinai in cooperation with the Mount Sinai Civic Association. The committee conducted a comprehensive review of then-current and projected issues affecting Mount Sinai,and proposed means to mitigate them. The topics considered included Residential Development, Commercial Development, Parks/Recreation, Transportation/Roads, Bike Lanes, and the Mount Sinai Harbor. Many of the the issues outlined will be familiar to current residents. Some recommendations have been adopted; some are still a work in progress. While approaching 20 year old, the Hamlet Study remains a good guide for responsible development.

Route 25A Mount Sinai to Wading River Community Visioning – Final Report

Route 25A Visioning Cover

The Route 25A Community Visioning is a project undertaken by the Town of Brookhaven. The purpose of the study was several: 1) to solicit input from residents and leaders of the five hamlets connected by Rout 25A as to preferred development and land uses; 2) identify unique and shared elements along the corridor; and 3) devise strategies to help achieve the visions in the land use implementation phase of the project. Over 300 residents and stakeholders participated in multiple forums held from October 2009 – August 2010, including leadership and members of the Mount Sinai Civic Association. The final document was published in 2010 and serves as the current master outline for development along the Route 25A corridor between Mount Sinai and Wading River. It is currently in active use by the Town of Brookhaven to guide development and redevelopment along Route 25A in Mount Sinai.