{"id":3616,"date":"2026-07-18T09:09:18","date_gmt":"2026-07-18T01:09:18","guid":{"rendered":"https:\/\/www.solidess.com\/?p=3616"},"modified":"2026-07-18T09:09:18","modified_gmt":"2026-07-18T01:09:18","slug":"commercial-bess-mexico-saee-guide","status":"publish","type":"post","link":"https:\/\/www.solidess.com\/af\/commercial-bess-mexico-saee-guide\/","title":{"rendered":"Commercial BESS in Mexico: Interconnection and Procurement for Industrial Sites"},"content":{"rendered":"\t\t
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Installing battery storage at a Mexican factory is not only a peak-shaving or backup-power decision. The project must first define its regulatory classification, permissible charging power, export restrictions and connection-study path.<\/p>\t\t\t\t<\/div>\n\t\t\t\t

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For a typical commercial BESS project in Mexico associated with an industrial load center, the direct procurement rule is:<\/p>\t\t\t\t<\/div>\n\t\t\t\t

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Do not release the BESS purchase order until the EPC has confirmed the SAEE participation mode, contracted or maximum demand, grid-charging limit, zero-export requirement, applicable CENACE studies and responsibility for protection, FAT and site acceptance.<\/p>\t\t\t\t<\/div>\n\t\t\t\t

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Mexico published its current General Administrative Provisions for integrating Electrical Energy Storage Systems\u2014Sistemas de Almacenamiento de Energ\u00eda El\u00e9ctrica, or SAEE\u2014on April 16, 2026. The rules entered into force on the following business day and repealed Agreement A\/113\/2024, published on March 7, 2025.<\/p>\t\t\t\t<\/div>\n\t\t\t\t

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The complete regulation is available through the official SIDOF publication of Mexico\u2019s 2026 SAEE provisions<\/a><\/strong>.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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How the 2026 SAEE Rules Classify Industrial Storage<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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The rules recognise several participation modes, including SAEE associated with generating plants, load centers, self-consumption facilities, transmission or distribution infrastructure, and standalone storage.<\/p>\t\t\t\t<\/div>\n\t\t\t\t

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A factory system will commonly be evaluated as an SAEE associated with a load center (Centro de Carga), or SAEE-CC. Under Section 4.1, the storage system forms part of the associated load center\u2019s installations and does not require a separate storage permit under this specific configuration.<\/p>\t\t\t\t<\/div>\n\t\t\t\t

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This does not eliminate the need for connection studies, technical-modification procedures or electrical approval. A standalone storage plant or a system intended to sell stored electricity requires a different regulatory assessment.<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Charging Power Counts Toward Facility Demand<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Section 4.2 requires SAEE charging power drawn from the RNT or RGD to be included in the contracted demand of a basic-supply user or the maximum demand of a qualified user. The combined facility load and battery charging power must not exceed the applicable demand limit.<\/p>\t\t\t\t<\/div>\n\t\t\t\t

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This means that a 100kW BESS does not automatically have permission to charge from the grid at 100kW.<\/p>\t\t\t\t<\/div>\n\t\t\t\t

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The RFQ should define:<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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