NB/T 11324-2023
Guidelines for Preparing Execution Estimates of Hydropower Projects (English Version)
- Standard No.
- NB/T 11324-2023
- Language
- Chinese, Available in English version
- Release Date
- 2023
- Published By
- Professional Standard - Energy CN / NB
- Latest
- NB/T 11324-2023
- Introduction
Standard Background and Positioning
NB/T 11324-2023, as an important industry standard in the field of hydropower project cost management, fills the gap in investment control standardization during the project implementation phase. The standard was jointly compiled by the China Hydropower and Water Conservancy Planning and Design Institute and seven major domestic power design institutes, integrating the industry's 20 years of experience in budget execution.
Analysis of the core framework
Investment structure Percentage range Key points of control Hub project 55-75% Section reserved fee ≤ basic reserve fee Resettlement compensation 20-35% Special audit required Interest during the construction period 5-15% Calculated according to the funds flow method
Key technical requirements
1. Four-dimensional classification method for bidding section investment
The standard innovatively proposes a four-dimensional classification system for bidding section execution budget: completed settlement, signed but not completed, completed bidding design, and uncompleted bidding design projects, each of which is suitable for different compilation methods.
2. Dynamic deviation analysis mechanism
Requires the establishment of a three-level deviation analysis system:
- Level 1: Total investment deviation (±5% triggers warning)
- Level 2: Engineering quantity/price/other deviations
- Level 3: Special analysis of key projects
Implementation suggestions
Case: A pumped-storage power station found that the deviation of the main building engineering quantity reached 12% through dynamic analysis of the execution budget. After verification, it was found that it was caused by changes in geological conditions, and the reserved cost allocation plan was adjusted in time.
Suggested implementation units:
1. Establish a BIM cost database to achieve quantity-price linkage
2. Update the material price index database every quarter
3. Develop an intelligent comparative analysis systemStandard Evolution Analysis
Compared with traditional budget preparation regulations, this standard highlights three major innovations:
- Introducing the contract boundary condition regression analysis method
- Establishing a dynamic adjustment mechanism for risk reserves
- Clarifying the principle of itemized VAT calculation
NB/T 11324-2023 Referenced Document
- NB/T 10877 Standards for preparation of estimates (estimates) of compensation costs for land acquisition and resettlement for hydropower project construction
- NB/T 35106 Provisions on Preparation of Bid Estimates for Hydropower Projects
- NB/T 35107 Provisions on Preparation of Estimates for Bidding and Design of Hydropower Projects
NB/T 11324-2023 history
- 2023 NB/T 11324-2023 Guidelines for Preparing Execution Estimates of Hydropower Projects
