26 Del. Admin. Code § 8003-5.0
Current through Register Vol. 28, No. 5, November 1, 2024
Section 8003-5.0 - Natural Gas Distribution System Planning and Modeling Program5.1 Each GDC shall have a robust system planning and modeling program based on natural gas industry best practices designed to review, on an annual basis or more often as needed, issues with the Natural Gas Distribution System affecting safety and Reliability to proactively plan for system improvements to be incorporated in the various plans (annual GDC capital plans and Infrastructure, Safety and Reliability Plans). Best practices that should be incorporated into system planning and modeling programs include: | Best Practice | Time Frame Annual (minimum) |
| Typical system planning activities. | Review existing issues |
| - | Calibrate system using actual peak day pressures |
| Model base system to identify problem areas |
| Model improvements for effect on system |
| Model various scenarios as needed |
| Identify improvements needed to system |
| Capital planning (5 year minimum, 10-20 year preferred) |
| Planning model calibration/adjustments to actual system conditions. | 5% or less |
| Operations staff involved in system planning and modeling activities? | Yes |
| Planning integrated to capital planning program for system improvements. | Within same planning year |
| Technology used in planning and modeling, how data is managed. | Synergi, GasWorks or similar simulation programs |
| Describe modeling scenarios used. | Design Day (most recent "worse case") |
| 1 in 10 year, 1 in 30-year, multi-day event scenario |
5.2 Each GDC shall develop and maintain a comprehensive prioritization program for analyzing the Reliability performance of its Natural Gas Distribution System during the course of each year, which shall include methods to measure and improve worst performing areas of the gas distribution system. Areas of prioritization may include replacement of aging infrastructure (cast iron, bare steel, aldyla plastic) and should tie into system planning and modeling program efforts. Natural Gas Distribution System areas are to be determined by the GDC.26 Del. Admin. Code § 8003-5.0
24 DE Reg. 405 (10/1/2020) (Final)