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BATTERY ENERGY STORAGE SYSTEM One or more devices, assembled together, capable of storing energy in order to supply electrical energy at a future time, not to include a standalone 12-volt car battery or an electric motor vehicle. A battery energy storage system is classified as a Tier 1, Tier 2 (Tier 2A and 2B) or Tier 3 battery energy storage system as follows: A. Tier 1 battery energy storage systems have an aggregate energy capacity less than or equal to 600 kWh and, if in a room or enclosed area, consist of only a single energy storage system technology. These are accessory uses to a principal use in a residential and small commercial setting (for onsite and/or vehicular use) and are intended for energy use by the principal use and do not exceed storage of 110% of two days of energy for the user (as determined by the Village Code Enforcement Office). B. Tier 2 battery energy storage systems have an aggregate energy capacity greater than 600 kWh or are comprised of more than one storage battery technology in a room or enclosed area (a Tier 2A system) or in an outdoor area (a Tier 2B system). These are accessory uses to a principal use and are intended for energy use by the principal use and do not exceed storage of 1 10% of two days of energy for the user (as determined by the Village Code Enforcement Office). C. Tier 3 battery energy storage systems (utility grade system) are systems that are designed independent of a user, with a purpose to store energy and then put that energy back into the power grid. They can be an accessory or primary use on a site. They also include any system not meeting the definition/requirements of a Tier 1 or Tier 2 system. BATTERY(IES) A single cell or a group of cells connected electrically in series, in parallel, or a combination of both, which can charge, discharge, and store energy electrochemically. For the purposes of this article, batteries utilized in consumer products are excluded from these requirements. CELL The basic electrochemical unit, characterized by an anode and a cathode used to receive, store, and deliver electrical energy. COMMISSIONING A systematic process that provides documented confirmation that a battery energy storage system functions according to the intended design criteria and complies with applicable code requirements. DEDICATED-USE BUILDING A building that is built for the primary intention of housing battery energy storage system equipment, is classified as Group Fu l occupancy as defined in the International Building Code, and complies with the following: A. The building's only use is battery energy storage, energy generation, and other electrical grid-related operations. B. No other occupancy types are permitted in the building. C. Occupants in the rooms and areas containing battery energy storage systems are limited to personnel that operate, maintain, service, test, and repair the battery energy storage system and other energy systems. D. Administrative and support personnel are permitted in areas within the buildings that do not contain battery energy storage systems, provided the following: (1) The areas do not occupy more than 10% of the building area of the story in which they are located. (2) A means of egress is provided from the administrative and support use areas to the public way directly outside of any structure that does not require occupants to traverse through areas containing battery energy storage systems or other energy system equipment. ENERGY CODE The New York State Energy Conservation Construction Code adopted pursuant to Article 11 of the Energy Law, as currently in effect and as hereafter amended from time to time.