Preparation regulation for cost estimation of onshore wind power projects
1 Scope
This standard specifies the work breakdown, cost composition, preparation of cost estimation, standard rates, and documentation of cost estimation.
This standard is applicable to the cost estimation for new centralized onshore wind power plants. It may be referenced for other wind power plants.
2 Normative references
The following referenced document is indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
NB/T 31010-2019 Quota for Cost Estimation of Onshore Wind Power Projects
3 General provisions
3.1 This standard is developed to unify the content, depth and calculation methods of cost estimation for onshore wind power projects, reasonably determine the costs, and improve the quality of cost estimation.
3.2 This standard shall be used together with NB/T 31010-2019.
4 Work breakdown
4.1 General requirements
The cost estimation of onshore wind power projects shall involve auxiliary construction works, equipment and installation works, civil works and other costs, as shown in Figure 1.
… …
4.2.1.1 The temporary road works refers to the temporary roads for the construction of wind power projects, including the construction, reconstruction (expansion) and rehabilitation of roads and bridges (culverts).
4.2.1.2 The power supply works refers to the connection of power supply lines of 10 kV and above from the existing power grid to the site, and the preparation of power supply facilities of 35 kV and above.
4.2.1.3 The preparation works for wind turbine installation refers to the site preparation works for the on-site assembly and installation of towers, wind turbines and other equipment.
4.2.1.4 Other auxiliary construction works refer to the auxiliary works apart from the above, such as mobilization and demobilization of large hoisting machinery, water supply for construction, cofferdam construction, site leveling for temporary facilities of wind power plant in mountainous area. The mobilization and demobilization of large hoisting machinery refer to those Class A machinery included in the norms of machine-shift rates of construction machinery.
4.2.1.5 The measures for safe and civilized construction refer to the measures to be taken at the construction site by the contractor in accordance with corresponding requirements.
4.2.2 The equipment and installation works refers to all the equipment constituting the fixed assets of the wind power plant and their installation, including power generation equipment and installation, collection line equipment and installation, step-up substation equipment and installation, and other equipment and installation.
4.2.2.1 The power generation equipment and installation of the power plant refers to the wind power equipment and installation in the plant, including wind turbines, towers, outgoing lines, transformers, and earthing.
4.2.2.2 The collection line equipment and installation refers to the equipment and installation of collection cables, overhead collection lines, earthing, etc., in the wind farm.
4.2.2.3 The step-up substation equipment and installation refers to the equipment and installation for power transformation, power distribution, control and protection in the step-up substation, including the main transformer system, power distribution equipment, reactive power compensation system, station service (emergency power supply) system, power cables, earthing, monitoring system, AC (DC) system, communication system, remote automatic control and power metering system, subsystem debugging, electrical system debugging, and electrical special item test.
4.2.2.4 Other equipment and installation refers to the corresponding equipment and installation other than mentioned above, including the heating, ventilation and air conditioning system, outdoor lighting system, firefighting system, water supply and drainage system, occupational health and safety equipment, production and maintenance vehicles, equipment allocation in centralized control center, and other equipment that need to be listed separately.
4.2.3 The civil works refers to the building (structure) works constituting the fixed assets of the wind power plant, including power plant works, collection line works, step-up substation works, road works, and other civil works.
4.2.3.1 The power plant works refers to all kinds of building (structure) works in the power plant, including the foundation works of wind turbines, outgoing line works, foundation works of wind turbine transformers, earthing of wind turbines and wind turbine transformers.
4.2.3.2 The collection line works comprises the civil works of the collection cable lines, the civil works of overhead collection lines, and overhead collection line earthing.
4.2.3.3 The step-up substation works refers to the structure works in the step-up substation, including the site leveling, foundation works of main transformer, foundation works of reactive power compensators, foundation works of power distribution equipment, structures of power distribution equipment, production buildings, auxiliary buildings, site offices and living quarters, and outdoor works.
Among which, the production buildings comprise the central control room (building), distribution room (building), reactive power compensator room, etc. The auxiliary buildings comprise the sewage treatment room, fire pump room, firefighting equipment room, diesel generator room, boiler room, storehouse, garage, etc. The site offices and living quarters comprise the offices, duty room, dormitory, canteen, guard room, etc. The outdoor works comprises the walls, gates, site roads, site ground hardening, site greening, and other outdoor works which include the water supply pipes, drainage pipes, inspection wells, rainwater wells, sewage wells, well covers, valves, septic tank, and drainage ditches.
4.2.3.4 The road works refers to the access roads and site roads of the wind farm. The access roads refer to roads connecting to the power plant and the step-up station. The site roads refer to the roads for maintenance inside the power plant.
4.2.3.5 Other civil works refers to those other than mentioned above, including the environmental protection, water and soil conservation, occupational health and safety, safety monitoring, water supply for firefighting, production and living, flood (moisture) control, allocation of centralized production and operation management facility, and other works that need to be listed separately.
4.2.4 Other costs refer to the costs which are indispensable to the project but are excluded in equipment cost, installation cost, or civil works cost. Other costs include the land use cost, preliminary work cost, construction administration cost, operational preparation cost, scientific research, investigation and design cost, and others.
4.2.4.1 The land use cost refers to the expenses paid in accordance with relevant national and local laws and regulations to obtain the site needed for project construction, including the land acquisition fee, temporary land acquisition fee, compensation for attachments on the acquired land, and site clearance expense.
4.2.4.2 The preliminary work cost refers to the expenses incurred in carrying out various works before the completion of the review of the pre-feasibility study report (or before the preparation of the wind farm project).
4.2.4.3 The construction administration cost refers to various administration expenses incurred in the process of project preparation, construction, commissioning, acceptance and handover, including the overhead of project owner, construction supervision cost, consulting service cost, technical and economic review cost, project quality inspection and testing cost, norm preparation and management cost, project acceptance cost, and insurance premium.
4.2.4.4 The operational preparation cost refers to the expenses incurred for making necessary
preparation by the project legal person for project operation, including the expense for production personnel training and early mobilization into the plant, expense for purchasing management appliance, tools, apparatus and furniture, expense for purchasing spare parts, and expense for commissioning. 4.2.4.5 The scientific research, investigation and design cost refers to the expenses incurred in scientific research and test, investigation and design for the construction of the project, including the scientific research and test cost, investigation and design cost, and as-built drawing preparation fee.
4.2.4.6 Others refer to the taxes and fees to be paid in accordance with relevant national regulations, like the compensation for water and soil conservation, etc.
4.2.5 The work breakdown shall comply with Annex A of this standard. The level 2 and level 3 items in Table A.1 to Table A.4 may be added or deleted depending on the project design.
Standard
NB/T 31011-2019 Specification and calculation basis for cost estimate of onshore wind power projects (English Version)
Standard No.
NB/T 31011-2019
Status
valid
Language
English
File Format
PDF
Word Count
20000 words
Price(USD)
600.0
Implemented on
2019-10-1
Delivery
via email in 1~3 business day
Detail of NB/T 31011-2019
Standard No.
NB/T 31011-2019
English Name
Specification and calculation basis for cost estimate of onshore wind power projects
NB/T 31011-2019, NB 31011-2019, NBT 31011-2019, NB/T31011-2019, NB/T 31011, NB/T31011, NB31011-2019, NB 31011, NB31011, NBT31011-2019, NBT 31011, NBT31011
Introduction of NB/T 31011-2019
Preparation regulation for cost estimation of onshore wind power projects
1 Scope
This standard specifies the work breakdown, cost composition, preparation of cost estimation, standard rates, and documentation of cost estimation.
This standard is applicable to the cost estimation for new centralized onshore wind power plants. It may be referenced for other wind power plants.
2 Normative references
The following referenced document is indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
NB/T 31010-2019 Quota for Cost Estimation of Onshore Wind Power Projects
3 General provisions
3.1 This standard is developed to unify the content, depth and calculation methods of cost estimation for onshore wind power projects, reasonably determine the costs, and improve the quality of cost estimation.
3.2 This standard shall be used together with NB/T 31010-2019.
4 Work breakdown
4.1 General requirements
The cost estimation of onshore wind power projects shall involve auxiliary construction works, equipment and installation works, civil works and other costs, as shown in Figure 1.
… …
4.2.1.1 The temporary road works refers to the temporary roads for the construction of wind power projects, including the construction, reconstruction (expansion) and rehabilitation of roads and bridges (culverts).
4.2.1.2 The power supply works refers to the connection of power supply lines of 10 kV and above from the existing power grid to the site, and the preparation of power supply facilities of 35 kV and above.
4.2.1.3 The preparation works for wind turbine installation refers to the site preparation works for the on-site assembly and installation of towers, wind turbines and other equipment.
4.2.1.4 Other auxiliary construction works refer to the auxiliary works apart from the above, such as mobilization and demobilization of large hoisting machinery, water supply for construction, cofferdam construction, site leveling for temporary facilities of wind power plant in mountainous area. The mobilization and demobilization of large hoisting machinery refer to those Class A machinery included in the norms of machine-shift rates of construction machinery.
4.2.1.5 The measures for safe and civilized construction refer to the measures to be taken at the construction site by the contractor in accordance with corresponding requirements.
4.2.2 The equipment and installation works refers to all the equipment constituting the fixed assets of the wind power plant and their installation, including power generation equipment and installation, collection line equipment and installation, step-up substation equipment and installation, and other equipment and installation.
4.2.2.1 The power generation equipment and installation of the power plant refers to the wind power equipment and installation in the plant, including wind turbines, towers, outgoing lines, transformers, and earthing.
4.2.2.2 The collection line equipment and installation refers to the equipment and installation of collection cables, overhead collection lines, earthing, etc., in the wind farm.
4.2.2.3 The step-up substation equipment and installation refers to the equipment and installation for power transformation, power distribution, control and protection in the step-up substation, including the main transformer system, power distribution equipment, reactive power compensation system, station service (emergency power supply) system, power cables, earthing, monitoring system, AC (DC) system, communication system, remote automatic control and power metering system, subsystem debugging, electrical system debugging, and electrical special item test.
4.2.2.4 Other equipment and installation refers to the corresponding equipment and installation other than mentioned above, including the heating, ventilation and air conditioning system, outdoor lighting system, firefighting system, water supply and drainage system, occupational health and safety equipment, production and maintenance vehicles, equipment allocation in centralized control center, and other equipment that need to be listed separately.
4.2.3 The civil works refers to the building (structure) works constituting the fixed assets of the wind power plant, including power plant works, collection line works, step-up substation works, road works, and other civil works.
4.2.3.1 The power plant works refers to all kinds of building (structure) works in the power plant, including the foundation works of wind turbines, outgoing line works, foundation works of wind turbine transformers, earthing of wind turbines and wind turbine transformers.
4.2.3.2 The collection line works comprises the civil works of the collection cable lines, the civil works of overhead collection lines, and overhead collection line earthing.
4.2.3.3 The step-up substation works refers to the structure works in the step-up substation, including the site leveling, foundation works of main transformer, foundation works of reactive power compensators, foundation works of power distribution equipment, structures of power distribution equipment, production buildings, auxiliary buildings, site offices and living quarters, and outdoor works.
Among which, the production buildings comprise the central control room (building), distribution room (building), reactive power compensator room, etc. The auxiliary buildings comprise the sewage treatment room, fire pump room, firefighting equipment room, diesel generator room, boiler room, storehouse, garage, etc. The site offices and living quarters comprise the offices, duty room, dormitory, canteen, guard room, etc. The outdoor works comprises the walls, gates, site roads, site ground hardening, site greening, and other outdoor works which include the water supply pipes, drainage pipes, inspection wells, rainwater wells, sewage wells, well covers, valves, septic tank, and drainage ditches.
4.2.3.4 The road works refers to the access roads and site roads of the wind farm. The access roads refer to roads connecting to the power plant and the step-up station. The site roads refer to the roads for maintenance inside the power plant.
4.2.3.5 Other civil works refers to those other than mentioned above, including the environmental protection, water and soil conservation, occupational health and safety, safety monitoring, water supply for firefighting, production and living, flood (moisture) control, allocation of centralized production and operation management facility, and other works that need to be listed separately.
4.2.4 Other costs refer to the costs which are indispensable to the project but are excluded in equipment cost, installation cost, or civil works cost. Other costs include the land use cost, preliminary work cost, construction administration cost, operational preparation cost, scientific research, investigation and design cost, and others.
4.2.4.1 The land use cost refers to the expenses paid in accordance with relevant national and local laws and regulations to obtain the site needed for project construction, including the land acquisition fee, temporary land acquisition fee, compensation for attachments on the acquired land, and site clearance expense.
4.2.4.2 The preliminary work cost refers to the expenses incurred in carrying out various works before the completion of the review of the pre-feasibility study report (or before the preparation of the wind farm project).
4.2.4.3 The construction administration cost refers to various administration expenses incurred in the process of project preparation, construction, commissioning, acceptance and handover, including the overhead of project owner, construction supervision cost, consulting service cost, technical and economic review cost, project quality inspection and testing cost, norm preparation and management cost, project acceptance cost, and insurance premium.
4.2.4.4 The operational preparation cost refers to the expenses incurred for making necessary
preparation by the project legal person for project operation, including the expense for production personnel training and early mobilization into the plant, expense for purchasing management appliance, tools, apparatus and furniture, expense for purchasing spare parts, and expense for commissioning. 4.2.4.5 The scientific research, investigation and design cost refers to the expenses incurred in scientific research and test, investigation and design for the construction of the project, including the scientific research and test cost, investigation and design cost, and as-built drawing preparation fee.
4.2.4.6 Others refer to the taxes and fees to be paid in accordance with relevant national regulations, like the compensation for water and soil conservation, etc.
4.2.5 The work breakdown shall comply with Annex A of this standard. The level 2 and level 3 items in Table A.1 to Table A.4 may be added or deleted depending on the project design.