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NB/T 11017-2022Specification for bills of quantities and valuation for photovoltaic power projects (English PDF)

光伏发电工程工程量清单计价规范

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Issued by

NEA

Level / Type

Industry · Recommended

Issue date

November 4, 2022

Implementation date

March 4, 2023

Scope

NB/T 11017-2022 is the English-translated version of 光伏发电工程工程量清单计价规范.

NB/T 11017-2022 is the Chinese specification for the bill of quantities and its valuation in photovoltaic power projects. Solar is now the largest single source of new generating capacity being built in China, and pricing it is a peculiar problem: the modules are a commodity whose price moves month by month and are usually supplied by the owner, while the works the contractor actually performs are thousands of near-identical small operations spread over hundreds of hectares - pile driving, mounting structure erection, module fixing, string wiring, inverter and combiner box installation, and the collector cable that ties it all together. The cost is therefore extremely sensitive to how the items are defined and measured: a rule that counts a module fixed rather than a square metre installed, or that treats the tracker separately from the structure, changes the tender price materially. This specification supplies the common definitions so that tenders can be compared. It sets out the preparation of the bill, with separate lists for work sections and trades, for the purchase of equipment and installation materials, for preliminaries and for other items, together with the item coding scheme; and the valuation clause covering the maximum tender price limit, the tender price, the agreement and adjustment of the contract price, measurement, interim payment, the final account, settlement on termination, disputes and the archiving of records. Its annexes carry the measurement rules and the model tender item lists for the array field, the collector system, the inverter and transformer stations, the site works and the grid connection. It completes the family alongside NB/T 11000 for onshore wind and NB/T 10999 for offshore. It was issued on 4 November 2022 by the National Energy Administration and took effect on 4 March 2023.

Document preview — NB/T 11017-2022

National Standard of the People's Republic of China

ICS: 27.160
Classification: P 02

Issued by: National Energy Administration of the PRC

1 Scope1
2 Normative references1
3 Terms and definitions1
4 General requirements3
5 Preparation of the bill of quantities4
5.1 General requirements4
5.2 Explanatory statement on the preparation of the bill of quantities4
5.3 Bill of quantities for divisional and sub-divisional works4
5.4 Procurement bill for equipment and installed materials4
5.5 Bill of preliminaries and temporary works items5
5.6 Bill of other items5
5.7 Item coding of the bill of quantities5
6 Valuation of the bill of quantities8
6.1 General requirements8
6.2 Maximum tender price limit9
6.3 Tender price quotation9
6.4 Agreement on the contract price10
6.5 Measurement of works11
6.6 Adjustment of the contract price11
6.7 Interim payment of the contract price16
6.8 Final account and payment on completion17
6.9 Price settlement and payment on termination of the contract18
6.10 Handling of valuation disputes19
6.11 Valuation records and archives19
7 Composition and format of the bill of quantities20
7.1 Composition of the bill of quantities20
7.2 Format of the bill of quantities20
8 Composition and format of the bill of quantities valuation20
8.1 Composition of the bill of quantities valuation20
8.2 Format of the bill of quantities valuation21
Annex A (normative) Bill of quantities items and measurement rules for building works22
A.1 Earthwork and rockwork22
A.2 Ground treatment works25
A.3 Masonry works27
A.4 Concrete and reinforcement works30
A.5 Metal structure works36
A.6 Internal and external decoration works38
A.7 Indoor water supply and drainage, heating, ventilation, lighting and fire protection works44
A.8 Outdoor works within the station area47
A.9 Road works53
A.10 Demolition and strengthening works54
Annex B (normative) Bill of quantities items and measurement rules for installation works56
B.1 Installation of generating field equipment56
B.2 Installation of step-up substation equipment60
B.3 Installation of cables and busbars67
B.4 Installation of overhead lines69
B.5 Earthing installation works72
B.6 Lighting installation works within the station area73
B.7 Commissioning and testing works73
Annex C (normative) Bill items and measurement rules for the procurement of equipment and installed materials77
C.1 Procurement of generating field equipment77
C.2 Procurement of step-up substation equipment79
C.3 Procurement of other equipment89
C.4 Procurement of installed materials92
Annex D (normative) Bill items and measurement rules for preliminaries and temporary works98
D.1 Preliminaries and temporary works items98
Annex E (informative) Tender item list for the generating field part of the works101
E.1 Tender item list for building works of the generating field part101
E.2 Tender item list for installation works of the generating field part122
Annex F (informative) Tender item list for the step-up substation part of the works130
F.1 Tender item list for building works of the step-up substation part130
F.2 Tender item list for installation works of the step-up substation part166
Annex G (informative) Tender item list for the procurement of equipment and installed materials177
G.1 Tender item list for the procurement of generating field equipment177
G.2 Tender item list for the procurement of step-up substation equipment179
G.3 Tender item list for the procurement of other equipment193
G.4 Tender item list for the procurement of installed materials196
Annex H (informative) Tender item list for preliminaries and temporary works201
H.1 Tender item list for preliminaries and temporary works201
Annex I (normative) Format of the bill of quantities203
I.1 Cover sheet203
I.2 Title page204
I.3 Explanatory statement on preparation205
I.4 Bill of quantities for divisional and sub-divisional works206
I.5 Procurement bill for equipment and installed materials206
I.6 Bill of preliminaries and temporary works items206
I.7 Bill of other items207
I.8 Schedule of provisional sums207
I.9 Schedule of provisional unit rates for equipment and materials208
I.10 Schedule of provisional sums for specialist works208
I.11 Daywork schedule209
I.12 Schedule of the content of general contractor services209
I.13 Schedule of the content of equipment and material unloading and safekeeping provided by the employer210
I.14 Schedule of materials priced by the tenderer211
I.15 Schedule of equipment and materials provided by the employer211
Annex J (normative) Format of the maximum tender price limit212
J.1 Cover sheet212
J.2 Title page213
J.3 Explanatory statement on preparation214
J.4 Summary of the maximum tender price limit215
J.5 Summary of the maximum tender price limit for building and installation works215
J.6 Summary of the maximum tender price limit for the procurement of equipment and installed materials215
J.7 Valuation table for the bill of quantities of divisional and sub-divisional works216
J.8 Valuation table for the procurement bill of equipment and installed materials216
J.9 Valuation table for the bill of preliminaries and temporary works items216
J.10 Valuation table for the bill of other items217
J.11 Schedule of provisional sums217
J.12 Schedule of provisional unit rates for equipment and materials218
J.13 Schedule of provisional sums for specialist works218
J.14 Daywork schedule219
J.15 Valuation table for general contractor service charges220
J.16 Valuation table for the unloading and safekeeping charges of equipment and materials provided by the employer220
J.17 Analysis table of the all-in unit rate220
J.18 Price schedule of principal materials221
Annex K (normative) Format of the tender price quotation222
K.1 Cover sheet222
K.2 Title page223
K.3 Explanatory statement on preparation224
K.4 Summary of the tender price quotation225
K.5 Summary of the tender price quotation for building and installation works225
K.6 Summary of the tender price quotation for the procurement of equipment and installed materials225
K.7 Valuation table for the bill of quantities of divisional and sub-divisional works226
K.8 Valuation table for the procurement bill of equipment and installed materials226
K.9 Valuation table for the bill of preliminaries and temporary works items226
K.10 Valuation table for the bill of other items227
K.11 Schedule of provisional sums227
K.12 Schedule of provisional unit rates for equipment and materials228
K.13 Schedule of provisional sums for specialist works228
K.14 Daywork schedule229
K.15 Valuation table for general contractor service charges230
K.16 Valuation table for the unloading and safekeeping charges of equipment and materials provided by the employer230
K.17 Analysis table of the all-in unit rate230
K.18 Schedule of materials priced by the tenderer231
Annex L (normative) Format of the final account on completion232
L.1 Cover sheet232
L.2 Title page233
L.3 Explanatory statement on preparation234
L.4 Summary of the final account on completion235
L.5 Summary of the final account on completion for building and installation works235
L.6 Summary of the final account on completion for the procurement of equipment and installed materials235
L.7 Valuation table for the bill of quantities of divisional and sub-divisional works236
L.8 Valuation table for the procurement bill of equipment and installed materials237
L.9 Analysis table of the all-in unit rate237
L.10 Valuation table for the bill of preliminaries and temporary works items238
L.11 Valuation table for the bill of other items238
L.12 Table for the confirmation of provisional unit rates and the valuation of price differences for equipment and materials238
L.13 Final account table for specialist works239
L.14 Daywork final account table239
L.15 Valuation table for general contractor service items240
L.16 Valuation table for the unloading and safekeeping charges of equipment and materials provided by the employer241
L.17 Summary valuation table for variations, site instructions and claims241
L.18 Application (approval) form for variation costs242
L.19 Application (approval) form for cost claims243
L.20 Application (approval) form for the payment of works progress money244

Foreword

This document was issued on 4 November 2022 by the National Energy Administration of the PRC and takes effect on 4 March 2023.

It is a NB/T standard: recommended rather than compulsory, but it is the text a Chinese reviewer applies when assessing a submission.

It is classified under ICS 27.160, Chinese classification P 02.

This document has been drafted in accordance with the rules given in GB/T 1.1-2020, Directives for standardization - Part 1: Rules for the structure and drafting of standardizing documents.

Attention is drawn to the possibility that some of the content of this document may be the subject of patent rights. The issuing body of this document shall not be held responsible for identifying patents.

This document is under the administration of the National Energy Administration. It was proposed by, and is placed under the routine management of, the General Institute of Hydropower and Water Resources Planning and Design, which is also responsible for the interpretation of its specific technical content.

Comments and suggestions arising during the implementation of this document should be sent to the General Institute of Hydropower and Water Resources Planning and Design, at No. 2 Liupukang Beixiaojie, Xicheng District, Beijing, postal code 100120.

The organizations responsible for drafting this document are: the General Institute of Hydropower and Water Resources Planning and Design (Renewable Energy Cost Quota Station); POWERCHINA Beijing Engineering Corporation Limited; POWERCHINA Northwest Engineering Corporation Limited; POWERCHINA Huadong Engineering Corporation Limited; PowerChina New Energy Group Co., Ltd.; and POWERCHINA Zhongnan Engineering Corporation Limited.

The principal drafters of this document are: Lu Yeqi, Sheng Zhe, Li Hongyu, Guan Zongyin, Zhao Guizhi, Zhou Chunxu, Yang Fan, Wu Xiao, Li Dongwei, Wang Jiande, Zhang Qing, Wang Yonggang, Huang Deqiang, Liu Fangchao, Yang Jing, Tao Tingting, Liu Jing, Xu Xiang, Xu Liguo, Qi Zhicheng and Zhang Shu.

The document was issued by the National Energy Administration on 4 November 2022 and came into force on 4 March 2023.

Identification and Structure of the Document

NB/T 11017-2022 is an energy industry standard of the People's Republic of China, issued by the National Energy Administration.

The Chinese title of the document is a specification for the pricing of bills of quantities for photovoltaic power generation projects; the official English title carried on the cover is Specification for bills of quantities and valuation for photovoltaic power projects.

The document is classified under ICS 27.160, covering solar energy engineering, and carries the Chinese Standard Classification code CCS P 02.

The date of issue is 4 November 2022 and the date of implementation is 4 March 2023. The cover carries no reference to a superseded document, so the specification is a first edition rather than a revision.

The body of the specification runs to eight clauses over twenty-one pages, followed by twelve annexes that occupy pages 22 to 244; the annexes therefore make up the greater part of the document.

Annexes A, B, C, D, I, J, K and L are normative, while Annexes E, F, G and H are informative.

The document contains one numbered figure in the body, Figure 1, showing the composition of the item code for the bill of quantities of divisional and sub-divisional works, on page 5.

Eight further figures appear in the annexes, illustrating the cover sheets and title pages of the bill of quantities, the maximum tender price limit, the tender price quotation and the final account on completion.

Two numbered tables appear in the body: Table 1, listing the third-level and fourth-level project codes, on page 6, and Table 2, listing the project classification codes, on page 7.

The annexes contain a further eighty-eight numbered tables, from Table A.1 to Table L.18, which carry the measurement rules, the tender item lists and the valuation forms.

1 Scope

Clause 1, Scope, occupies page 1 and delimits the field of application of the specification.

Clause 2, Normative references, also begins on page 1 and lists the documents referred to in the text.

Clause 3, Terms and definitions, begins on page 1 and runs to page 3, making it the longest of the introductory clauses.

Clause 4, General requirements, occupies page 3 and sets out the overall requirements that govern the preparation and the valuation of the bill of quantities.

The four introductory clauses together occupy pages 1 to 3, before the operative provisions begin at Clause 5.

The full text of these clauses is not reproduced here: the pages available for this description cover the cover sheet, the table of contents and the foreword only.

Remaining clauses in the full document

2 Normative references
3 Terms and definitions
4 General requirements
5 Preparation of the Bill of Quantities
6 Valuation of the Bill of Quantities
7 Composition and Format of the Bill of Quantities
8 Composition and Format of the Bill of Quantities Valuation
Annex A Bill of Quantities Items and Measurement Rules for Building Works (normative)
Annex B Bill of Quantities Items and Measurement Rules for Installation Works (normative)
Annex C Bill Items and Measurement Rules for the Procurement of Equipment and Installed Materials (normative)
Annex D Bill Items and Measurement Rules for Preliminaries and Temporary Works (normative)
Annexes E to H Informative Tender Item Lists
Annexes I to L Normative Forms for the Bill, the Price Limit, the Quotation and the Final Account

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 253 pages — is available in the English PDF.

Similar standards

GB 50500-2013|GB 50854-2013|GB/T 50353-2013

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