By: Steve Persutti, VP of Operations Development, Power Delivery Engineering
TPL-001-04 consolidates four previously effective transmission planning standards into one standard and includes provisions that significantly limit the use of load loss as a solution to meet performance requirements.
Under the standard, planned Non-Consequential Load Loss cannot exceed 75 MW for registered US entities. And planners must now examine, document and evaluate their load loss plans in a public, verifiable, and enforceable stakeholder process prior to implementation.
More details about TPL-001-4 and the compliance actions you will need to take are available in TRC’s latest Regulatory Update.
The standard will go into effect in a phased approach over the next few years.
Regulated should prepare now for compliance. Important areas of focus include:
- Review the requirements of TPL-001-4 and assess the implications for your existing transmission planning processes and procedures.
- If your plan permits Non-Consequential Load Loss, you will need a compliance plan which demonstrates that public comment and review of the plans has occurred.
- Various steady state, short circuit and stability studies will be needed to assess your transmission planning initiatives.
- Coordination of planning with transmission system protection, generation protection and control, UFLS programs and other related standards is essential.
How do you plan to address reliability related to Non-Consequential Load Loss planning? What is your biggest challenge related to this issue? Please share your questions and best practices in the comments section below.
This is a moderated blog, and all comments will be reviewed before posting. TRC retains the discretion to determine which comments will be posted.