“The frequency and voltage of interconnected bulk power systems shall be controlled within defined limits through the balancing of real and reactive power supply and demand.” As proposed, BAL-004-WECC-3 changes the standard’s focus from verification to operation. Each Balancing Authority (BA) operating synchronously in the Western Interconnection would be required to operate its system such that following the conclusion of each month, specific Primary Inadvertent Interchange values fall within a specified range. One way this is achieved is by maintaining a consistent frequency within the system. Reliability Principle 3 states: “Information necessary for the planning and operation of interconnected bulk power systems shall be made available to those entities responsible for planning and operating the systems reliably.” As proposed, BAL-004-WECC-3 specifies a specific software tool from which all true-up values will be derived. The proposed standard does not limit an entity’s ability to use alternative internal means of calculation; however, for purposes of true-up with external entities (other BAs) only the WECC Interchange Tool (WIT), or its successor can be used. This approach standardizes the information necessary for true-up and promotes a uniform operation of the system within parameters specified in Requirement R1, Sub Parts 1.1 and 1.2. Proposed Reliability Standards must contain a technically sound method to achieve the goal. The proposed Reliability Standard must be designed to achieve a specified reliability goal and must contain a technically sound means to achieve this goal. Although any person may propose a topic for a Reliability Standard to the ERO, in the ERO’s process, the specific proposed Reliability Standard should be developed initially by persons within the electric power industry and community with a high level of technical expertise and be based on sound technical and engineering criteria. It should be based on actual data and lessons learned from past operating incidents, where appropriate. The process for ERO approval of a proposed Reliability Standard should be fair and open to all interested persons. Order No. 672 at P 324. Standard Development
“The frequency and voltage of interconnected bulk power systems shall be controlled within defined limits through the balancing of real and reactive power supply and demand.” As proposed, BAL-004-WECC-3 changes the standard’s focus from verification to operation. Each Balancing Authority (BA) operating synchronously in the Western Interconnection would be required to operate its system such that following the conclusion of each month, specific Primary Inadvertent Interchange values fall within a specified range. One way this is achieved is by maintaining a consistent frequency within the system. Reliability Principle 3 states: “Information necessary for the planning and operation of interconnected bulk power systems shall be made available to those entities responsible for planning and operating the systems reliably.” As proposed, BAL-004-WECC-3 specifies a specific software tool from which all true-up values will be derived. The proposed standard does not limit an entity’s ability to use alternative internal means of calculation; however, for purposes of true-up with external entities (other BAs) only the WECC Interchange Tool (WIT), or its successor can be used. This approach standardizes the information necessary for true-up and promotes a uniform operation of the system within parameters specified in Requirement R1, Sub Parts 1.1 and 1.2. Proposed Reliability Standards must contain a technically sound method to achieve the goal. The proposed Reliability Standard must be designed to achieve a specified reliability goal and must contain a technically sound means to achieve this goal. Although any person may propose a topic for a Reliability Standard to the ERO, in the ERO’s process, the specific proposed Reliability Standard should be developed initially by persons within the electric power industry and community with a high level of technical expertise and be based on sound technical and engineering criteria. It should be based on actual data and lessons learned from past operating incidents, where appropriate. The process for ERO approval of a proposed Reliability Standard should be fair and open to all interested persons. Order No. 672 at P 324. Standard Development
WECC-0124%20BAL-004-WECC-3%20ATEC%20Attachment%20K%20-%20Order%20672%20Criteria.docx