Combined Heat and Power Partnership
Texas Interconnection Standards
|Date Last Updated||11/16/2012|
|Policy Type||Interconnection Standard|
|Policy Administrator/Contact Office||Public Utility Commission of Texas (PUCT)|
|Policy Initiation Date||11/18/1999|
|Policy Summary||PUCT has adopted interconnection standards for systems including CHP. The rules apply to electrical generating facilities (consisting of one or more on-site distributed-generation units) located at a customer's point of delivery, <10 MW and connected at a voltage <60 kV. The total capacity of a facility's individual on-site distributed generation units may exceed 10 MW, however, no more than 10 MW of capacity will be interconnected at any point in time at the point of common coupling.|
Installations must meet all applicable national, state and local construction and safety codes. No pre-interconnection study fees are required for units <500 kW (under most circumstances), and study fees for larger systems are limited. There are limited timeframes outlined in the standards; pre-interconnection studies and application approval or rejection must occur within 4-6 weeks. Pre-certification provisions allow for fast-track interconnection. Equipment and operational requirements are differentiated based on connection type (single-phase or three-phase), paralleling mode and system size. Dispute-resolution procedures have been designated. The PUCT did not address liability insurance requirements in the final rules. Therefore, utilities may require that customer-generators obtain a certain amount of liability insurance.
Additionally, an external disconnect device is required for all systems. Standardized interconnection applications and interconnection agreements are used.
|CHP Eligibility Requirements||Both fossil-fueled and renewably-fueled CHP systems are eligible for standardized interconnection.|
|Eligible Project Size (MW)||Standardized interconnection applies to systems <10 MW.|