T/CAPID 007-2023 零碳能源证书自愿核证体系 生物质热能核证规范

　　CAPID

中 国 产 业 发 展 促 进 会 团 体 标 准T/CAP ID 007—2023

零碳能源证书自愿核证体系

生物质热能核证规范

Voluntary certification scheme for zero carbon energy certificates—Specification for

certification of biomass thermal energy

2023 - 11 - 01 发布

2023 - 11 - 10 实施

中国产业发展促进会 发 布

前

本文件按照GB/T 1.1—2020《标准化工作导则

言

第1部分：标准化文件的结构和起草规则》的规定

起草。

请注意本文件的某些内容可能涉及专利。本文件的发布机构不承担识别专利的责任。

本文件由中国产业发展促进会提出。

本文件由中国产业发展促进会生物质能产业分会归口管理。

本文件主要起草单位：中国产业发展促进会生物质能产业分会中节能大数据有限公司

北京松杉低碳技术研究院有限公司

河南百川畅银环保能源股份有限公司

中国能源研究会绿色低碳技术专委会

本文件参与起草单位：国家发展和改革委员会能源研究所中国标准化研究院资源与环境分院落基山研究所 (美国)北京代表处

中国质量认证中心

中环联合 (北京)认证中心有限公司国际能源署生物质能中国组

农业农村部沼气科学研究所道达尔能源中国

华晨宝马汽车有限公司

沃尔沃汽车(亚太)投资控股有限公司

北京绿色交易所有限公司

天津排放权交易所有限公司

中国农业大学

北京大学能源研究院

华南农业大学生物质工程研究院

必维认证(北京)有限公司

中海石油化学股份有限公司

中国光大绿色环保有限公司

国能生物发电集团有限公司

北京中科润宇环保科技股份有限公司

深圳能源环保股份有限公司

宁波能源集团股份有限公司

中节能咨询有限公司

山西国耀新能源集团有限公司

瀚蓝环境股份有限公司

理昂生态能源股份有限公司

安徽国祯生态科技有限公司

武汉光谷蓝焰新能源股份有限公司

鹤壁汇能热电有限公司

本文件主要起草人：郑朝晖、张大勇、刘洪荣、王乐乐、高永华、韩旭、付春阳、张峰、任东明、张逦嘉、李婷、郑显玉、汤丽君、罗涛、徐忠华、于岳龙、王千锐、王辉军、韩翠莲、朱万斌、

郑平、张止戈、张凯林、黄敏、吴洪胜、黄伟华、吕英胜、栗博、白贤祥、翁君杰、殷龙、祁林林、郭美娜、郭勤、徐建东、陈永俊、史德森。

本文件为首次发布。

引 言

《“十四五”可再生能源发展规划》明确提出要建立健全绿色能源消费机制，建立绿色能源消费评价、认证与标识体系。当前，我国绿色电力证书核发及自愿认购体系基本建立，但可再生能源的非电利用缺乏相应机制，环境权益实现途径仍然缺失。如绿色热能、绿色燃气、绿色液体燃料等， 暂未形成相应的证书核发与认证交易体系，难以体现和证明能源的环境权益。

为贯彻落实国家双碳战略决策部署，促进我国可再生能源高质量发展，创建可再生能源环境权益多元化实现机制，中国产业发展促进会生物质能产业分会组织相关企业和专家制定了“零碳能源证书自愿核证体系”系列标准，旨在建立可再生能源非电领域的绿色能源认证、消费机制，进一步体现可再生能源的环境权益。

《零碳能源证书自愿核证体系 通则》作为零碳能源证书自愿核证体系的统领性文件，确立了核证体系的架构，明确了各相关方的职责，规范了从证书的核证到注销的全生命周期流程，保证了零碳能源证书的环境权益。

针对具体可再生能源利用方式制定“零碳能源证书自愿核证体系 核证规范”系列标准，涵盖可再生能源非电利用各领域，为不同类型可再生能源项目的核证提供规范指导，旨在保证零碳能源证书核证的合规性、自愿性、唯一性、透明性、准确性、保守性等。

本文件为生物质热能领域的零碳能源证书核证工作提供了核算内容、核算边界、核算步骤与方法、核算数据来源及质量管理、核查程序、核证程序的必要参考，涵盖了生物质热能领域的零碳能源证书核证工作中的主要环节，规范了核证工作，保障核证质量，为相关方参与核证工作提供了指导和参考。

零碳能源证书自愿核证体系 生物质热能核证规范

1 范围

本文件规定了对生物质热能开展零碳能源证书核证工作的核算内容、核算边界、核算步骤与方法、核算数据来源、核算质量管理、核查程序、核证程序等内容。

本文件适用于生物质热能的零碳能源证书核算、核查和核证。

2 规范性引用文件

下列文件中的内容通过文中的规范性引用而构成本文件必不可少的条款。其中，注日期的引用文件，仅该日期对应的版本适用于本文件;不注日期的引用文件，其最新版本(包括所有的修改单)适用于本文件。

GB/T 2589 综合能耗计算通则

GB 17167 用能单位能源计量器具配备和管理通则

GB/T 30727 固体生物质燃料发热量测定方法

GB/T 32224 热量表

GB/T 34060 蒸汽热量计算方法

GB/T 35211 天然气发热量的测量 连续燃烧法

CJ/T 313 生活垃圾采样和分析方法

T/CAPID 006 零碳能源证书自愿核证体系 通则

3 术语和定义

GB/T 30366—2013界定的以及下列术语和定义适用于本文件。

3.1

生物质 biomass

一切直接或间接利用绿色植物光合作用形成的有机物质,包含除化石燃料外的植物、动物和微生物以及由这些生命体排泄与代谢所产生的有机物质等。可分为农业生物质、林业生物质、城市固体废弃物、动物废弃物等。

[来源：GB/T 30366—2013，2.1]。

3.2

生物质热能 biomass thermal energy

利用生物质作为燃料进行供热产生的热能。

3.3

生物质供热项目 biomass heating project

利用生物质热能对外供热的项目。

注：主要包括农林生物质热电联产项目、垃圾焚烧热电联产项目、生物质清洁供热项目等。

3.4

零碳能源占比 percent of zero carbon energy

在核算边界内的主要生产系统中，生产前系统内零碳能源占总能源的比例。

注：在本文件中，等同于生产或供应的能源中零碳能源的比例。

4 核算内容及边界

4.1 核算内容

申请核证主体应通过核证平台核算和报告其生产系统的能源活动中生产或供应的零碳能源量。

4.2 核算边界

4.2.1 申请核证主体应确定零碳能源证书的核算边界与涉及的时间范围，明确工作对象。

4.2.2 申请核证主体应以企业法人或视同法人的独立核算单位为边界,核算和报告其生产系统产生或供应的零碳能源量。生产系统包括主要生产系统、辅助生产系统及直接为生产服务的附属生产系统，其中辅助生产系统包括动力、供电、供水、化验、机修、库房、运输等,附属生产系统包括生产指挥系统(厂部)和厂区内为生产服务的部门和单位(如职工食堂、车间浴室、保健站等)。

4.2.3 核算边界的确定宜参考申请核证主体的设施和业务范围及生产工艺流程图，应包括：原料运输阶段、能源生产阶段(热力生产和供应阶段)过程中的各类能源，具体如图 1 所示。如原料运输时使用的化石能源，生产系统中用于热力生产和供应的原料能量、化石能源、外购的电力、回用的能量等。

图1 核算边界示意图

5 核算步骤与方法

5.1 核算步骤

申请核证主体进行核算与报告的工作流程包括以下步骤：

a) 确认核算边界，收集各阶段下的活动数据;

b) 分别计算核算边界内各阶段下原料的能量、化石能源的能量、消耗外购的电力、回用的能量等各类能源量;

c) 汇总核算申请核证主体生产及供应的零碳能量及相关信息;

d) 形成核算报告。

5.2 核算方法

申请核证主体申请核证的零碳能源量Qz ，按公式(1)计算：

Qz = RATIOz × Qjc __ Qys __ Qs __ Qjj __ Qhy ····················································· (1)

式中：

Qz——零碳能源量，即核证能源量，核发的零碳能源证书对应的能量，单位为吉焦(GJ);

RATIOz ——在能源生产阶段，直接用于热能生产的能量中零碳能源所占比例，即零碳能源占比，%;

Qjc——核证平台在线监测的申请核证主体对外供应热能总量，单位为吉焦(GJ);

Qys——在原料运输阶段，使用的化石能源的能量，单位为吉焦(GJ);

Qs——在能源生产阶段，直接用于热能生产的水的自带能量，单位为吉焦(GJ);

Qjj——在能源生产阶段，间接用于热能生产的能量，单位为吉焦(GJ);

Qhy——在能源生产阶段，生产系统中回用的能量，单位为吉焦(GJ)。

注：5.3、5.4节对应能源输入及能源回用的核算，5.5、5.6节对应能源输出的核算。

5.3 原料运输阶段的能量

原料运输阶段中的化石能源总能量，根据化石能源的使用量及相应热值，按公式(2)计算：

Qys = Σqi × mi × 10__3 ········································································· (2)

式中：

qi——第i种化石能源的干基低位热值，单位为千焦每千克(kJ/kg);

mi——第i种化石能源的质量，单位为吨(t);

10__3——单位换算系数，无量纲;

i——化石能源的种类i。

注：化石能源的干基低位热值，可参考附录A、GB/T 2589—2020或通过相应标准测量。

5.4 能源生产阶段的能量

5.4.1 直接用于热能生产的能量

能源生产阶段直接用于热能生产的能量，即主要生产系统中的能量，按公式(3)计算：

Qzj = Qyl + Qzj,hs ·············································································· (3)

式中：

Qzj——在能源生产阶段，直接用于热能生产的能源总量，单位为吉焦(GJ);

Qyl ——在能源生产阶段，直接用于热能生产的生物质原料总能量，单位为吉焦(GJ);

Qzj,hs——在能源生产阶段，直接用于热能生产的化石能源总量，单位为吉焦(GJ)。

5.4.1.1 直接用于热能生产的生物质原料总能量

能源生产阶段直接用于热能生产的生物质原料总能量Qyl ，按公式(4)计算：

Qyl = qyl × myl × 10__3········································································· (4)

式中：

qyl——生物质原料的干基低位热值，单位为千焦每千克(kJ/kg);

myl ——生物质原料的质量，单位为吨(t);

10__3——单位换算系数，无量纲。

注：生物质原料应按相应的标准测量其干基低位热值qyl。固体生物质燃料的热值应依据GB/T 30727测量，生活垃圾的热值应依据CJ/T313测量，生物天然气的热值应依据GB/T 35211测量。

若生物质原料中存在化石碳部分，应预先对主要生物质原料进行记录留存、分析成分，计算主要生物质原料中化石碳与非化石碳部分的比例，分别进行能量计算。

其中，生物质原料中化石碳的能量Qyl ,hs ，按公式(5)计算:

Qyl,hs = Qyl × FCC × FFC ······································································ (5)

式中：

Qyl,hs——生物质原料中掺杂的化石碳的能量，单位为吉焦(GJ);

FCC——生物质原料中总碳含量比例，%;

FFC——生物质原料中总碳含量中化石碳的比例，%。

5.4.1.2 直接用于热能生产的化石能源总量

能源生产阶段直接用于热能生产的化石能源总量Qzj,hs ，应根据主要生产系统中辅助燃烧的化石能源使用量及相应热值，按公式(2)计算。

5.4.1.3 直接用于热能生产的水的自带能量

能源生产阶段直接用于热能生产的水的自带能量Qs ，应依据GB/T 32224计算。

5.4.2 间接用于热能生产的能量

能源生产阶段间接用于热能生产的能量Qjj ，按公式(6)计算：

Qjj = Qjj,hs + Qyd ·············································································· (6)

式中：

Qjj,hs——在能源生产阶段，间接用于热能生产的化石能源总量，单位为吉焦(GJ);

Qyd ——在能源生产阶段，间接用于热能生产的用电总量，单位为吉焦(GJ)。

注：若核算边界内用电全部为绿色电力，则Q yd = 0，否则按对应量折减。

5.4.2.1 间接用于热能生产的化石能源总量

能源生产阶段间接用于热能生产的化石能源总量Qjj,hs ，应根据辅助生产系统和附属生产系统中化石能源使用量及相应热值，按公式(2)计算。

5.4.2.2 间接用于热能生产的用电总量

能源生产阶段间接用于热能生产的用电总量Qyd，应根据核算边界内下网电量的电表获取数据计入。

如存在厂内自用电则应辨别自用电属性来源，如来自化石能源则应按化石能源量计入，如来自可再生能源可不计入。

5.4.3 回用的能源总量

本文件中涉及的能量回用主要以回水为主，如存在其他形式的能源利用应进行相应论证。

能源生产阶段回用的能源总量Qhy ，应依据GB/T 32224计算。

5.5 零碳能源占比

零碳能源占比RATIOz 按公式(7)计算：

RATIOz

5.6 对外供应的热能总量

对外供应的热能总量Qjc ，应依据对外供应热能的形式，按相应标准计算。蒸汽应依据GB/T 34060计算，热水应依据GB/T 32224计算。

6 核算数据来源及质量管理

6.1 核算数据来源

6.1.1 核算数据获取顺序

监测设备需符合国家标准、地方标准和行业标准的要求， 且按规定定期对仪器仪表进行校核，保证核查数据的准确性。核算零碳能源证书的数据获取优先级如表1所示：

表1 数据获取优先级

6.1.2 核算数据获取频率

核算数据除核证平台实时监测的数据外，应按申请核证主体的监测计划中规定的频率获取。监测计划应符合国家和地方法律法规、政策、标准的要求以及平台管理办法要求。

6.2 核算质量管理

申请核证主体应加强目零碳能源证书中的数据质量管理工作，包括但不限于：

a) 建立企业生物质热能零碳能源证书核算和报告的规章制度，包括负责机构和人员、工作流程和内容、工作周期和时间节点等;指定专职人员负责企业零碳能源证书核算和报告工作;

b) 根据零碳能源证书核算数据的重要程度对其进行等级划分，并建立企业零碳能源证书核算数据一览表，对于不同等级的核算数据的获取提出相应的要求;

c) 依照 GB 17167 对现有监测条件进行评估，不断提高自身监测能力，并制定相应的监测计划，对活动数据相关参数进行监测;定期对计量器具、检测设备和在线监测仪表进行维护管理，并记录存档;

d) 建立零碳能源证书报告内部审核制度，定期对生产活动数据进行交叉校验，对可能产生的数据误差风险进行识别，并提出相应的解决方案。

e) 建立健全的零碳能源证书数据记录管理体系，包括数据来源、数据获取时间及相关责任人等信息的记录管理;

7 核查程序

7.1 核查原则

7.1.1 客观独立

核查机构应保持独立于核证的项目活动，避免偏见以及利益冲突，在整个核查活动过程中保持客观。

7.1.2 公平公正

核查机构在核查活动中的发现、结论及报告应真实、准确。除报告核证过程中的重要障碍，还应报告未解决的意见分歧。

7.1.3 诚实守信

核查机构应具有高度的责任感，确保核查工作的完整性和保密性。

7.1.4 专业严谨

核查机构应具备核查必需的专业技能，能够根据任务的重要性及客户的具体要求，利用其职业素养进行专业判断。

7.2 核查程序

7.2.1 核查流程

核查机构开展零碳能源证书核查的流程分为三个阶段，具体如图2所示。

图2 核查机构核查流程

7.2.2 准备阶段

核查机构收到核证平台通知后，应根据申请核证主体的项目情况、核查员的专业领域和技术能力组成具有专业技能的核查组，提前做好核查准备。

7.2.3 实施阶段

核查机构应按照相应的核证标准及要求开展核查工作，在判断核查材料的合理性、确定现场访问的重点并制定现场访问计划后，采取多种有效方式实施现场访问。核查机构应当根据核查发现编制核查报告并做技术复核，保证核查报告真实、客观、逻辑清晰。

7.2.4 报告阶段

核查机构在完成技术复核后，将核查报告及相关支撑材料提交核证平台。核查机构应当以安全和保密的方式保管核查过程中的全部书面和电子文件，保存期至少10年。

7.3 核查内容

核查机构应依据核证平台的核查办法及相关要求进行核查，确认项目核证的零碳能源证书是否具体唯一性、核算结果的合理性，核实生产设施、核查测量设备的配置和监测系统的运行、确认监测计划的执行情况等。

8 核证程序

零碳能源证书的核证应依据T/CAPID 006及相关规定进行。

附 录 A

(规范性)

能源换算及参考值

由于非电可再生能源种类较多，对于不同能源间的换算应参照GB/T 2589—2020的相关规定进行换算，能量单位统一为吉焦(GJ)。如能量单位非焦耳，则通过标准煤量进行换算成吉焦。

注1：1 kgce = 29307.6 kJ = 0.0293076 GJ = 7000 kcal

注2：1 kW·h = 3600000 J = 0.0036 GJ

表A.1 各种能源折标准煤系数(参考值)

附 录 B

(资料性)

生物质供热项目各阶段能源核算示意图

生物质供热项目各阶段能源核算示意图如图B.1所示。

图B.1 能源生产阶段的能量核算示意图

附 录 C

(资料性)

生物质热能零碳能源证书核算表格

C.1 原料运输阶段的能量(Qys)

C.2 能源生产阶段直接用于热能生产的能量(Qzj)

C.3 能源生产阶段间接用于热能生产的能量(Qjj)

C.4 能源生产阶段回用的能源总量(Qhy)

C.5 零碳能源占比(RATIOz)

C.6 对外供应的热能总量(Qjc)

C.7 核算的零碳能源量(Qzj)

参 考 文 献

[1]GB/T 30366—2013 生物质术语

[2]碳排放权交易管理办法(试行)生态环境部部令 第19号

[3]碳排放权登记管理规则(试行) 生态环境部公告 2021年 第21号

[4]碳排放权交易管理规则(试行) 生态环境部公告 2021年 第21号

[5]碳排放权结算管理规则(试行)生态环境部公告 2021年 第21号

[6]中国发电企业 温室气体排放核算方法与报告指南(试行) 发改办气候〔2013〕2526号

[7]企业温室气体排放报告核查指南(试行) 环办气候函〔2021〕130号

[8]企业温室气体排放核算与报告指南 发电设施 环办气候函〔2022〕485号

[9]企业温室气体排放核查技术指南 发电设施 环办气候函〔2022〕485号

[10]GB/T 27029 合格评定 审定与核查机构通用原则和要求

[11]GB/T 32150 工业企业温室气体排放核算和报告通则

[12]RB/T 175 生物质能可持续性认证要求

CAPID

Association Standards of CAP ID

T/CAP ID 007—2023

Voluntary certification scheme for zero carbon energy certificates— Specification for certification of biomass thermal energy

零碳能源证书自愿核证体系 生物质热能核证规范

(English Translation)

Issue Date:2023 - 11 - 01 Implementation Date:2023 - 11 - 10

Issued by China Association for the Promotion of Industrial Development

Foreword

CAP ID is in charge of this English translation. In case of any doubt about the contents of English translation, the Chinese original shall be considered authoritative.

This standard is drafted in accordance with the rules given in the 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 elements of this standard may be the subject of patent rights. The issuing body of this document shall not be held responsible for identifying any or all such patent rights.

This document is proposed by the China Association for the Promotion of Industrial Development (CAP ID).

This document was prepared by the Biomass Energy Industry Promotion Association of the China Association for the Promotion of Industrial Development (CAP ID).

This document was mainly drafted by:BE IPA

CECEP Big Data Co. , Ltd

Beijing Songshan Low Carbon Technology Research Institute Co., Ltd

Henan BCCY Environmental Energy Co., Ltd.

China Energy Research Society (CERS), Specialized

Committee on Green and Low Carbon Technologies (SCGLCT) This document was drafted with the participation of the drafting unit:

Energy Research Institute of the National Development and Reform Commission

Branch of Resource and Environment of China National Institute of Standardization

Rocky Mountain Institute (USA) Beijing Representative Office

China Quality Certification Center

China Central Union (Beijing) Certification Center Co. International Energy Agency Biomass China Group

Institute of Biogas Science, Ministry of Agriculture and Rural Development

Total Energy China

BMW Brilliance Automotive Ltd.

Volvo Cars (Asia Pacific) Investment Holding Co. , Ltd China Beijing Green Exchange Co. , Ltd

Tianjin Climate Exchange Co. , Ltd

China Agricultural University

Energy Research Institute of Peking University

Institute of Biomass Engineering, South China Agricultural University

Bureau Veritas Certification (Beijing) Co. , Ltd China Shipping Petrochemical Co. , Ltd

China Everbright Greentech Co. , Ltd

China National Bioenergy Group Co. , Ltd

Beijing China Sciences Runyu Environmental Technology Co., Ltd

Shenzhen Energy Environmental Protection Co.

Ningbo Energy Group Co.

CECEP Consulting Co.,Ltd.

Shanxi Guoyao New Energy Group Co.

Grandblue Environment Co., Ltd.

Reang Eco-Energy Co.

Anhui Guozhen Ecology Co.

Wuhan Optics Valley Bluefire New Energy Co.

Hebi Huineng Thermal Power Co.

This document was mainly drafted by: Zheng Zhaohui, Zhang Dayong, Liu Hongrong, Wang Lele, Gao Yonghua, Han Xu, Fu Chunyang, Zhang Feng, Ren Dongming, Zhang Lijia, Li T ing, Zheng Xianyu, Tang Lijun, Luo Tao, Xu Zhonghua, Yu Yue long, Wang Qianrui, Wang Huijun, Han Cui lian, Zhu Wanbin, Zheng Ping, Zhang Zhige, Zhang Kai lin, Huang Min, Wu Hongsheng, Huang Weihua, Lv Yingsheng, Li Bo, Bai Xianxiang, Weng Junjie, Yin Long, Qi Lin lin, Guo Meina, Guo Qin, Xu Jiandong, Chen Yongjun, Shi Desen.

This document is the first edition.

Introduction

The "14th Five-Year Plan" for Renewable Energy Development explicitly proposes the establishment of a sound mechanism for green energy consumption and the establishment of a system for the evaluation, certification, and labelling of green energy consumption. At present, China's verification and issuance of green power certificates and voluntary subscription system is basically established, but a proper mechanism for the non-electric utilization of renewable energy is not available, and the way of realizing environmental rights and interests is still absent. For example, a corresponding verification and certificate trading system has not yet been formed for green thermal energy, green gas and green liquid fuels, making it difficult to manifest the environmental rights and interests of the energy.

In order to implement the national carbon peaking and carbon neutrality strategy, promote the high-quality development of China's renewable energy, and create a diversified mechanism for realizing the environmental rights and interests of renewable energy, the Biomass Energy Industry Promotion Association, CAP ID organized enterprises and experts to formulate the series standards for the "Voluntary Certification Scheme for Zero Carbon Energy Certificates" which is aimed at establishing a mechanism for the certification and consumption of non-electricity renewable energy, and further reflecting the environmental rights and interests of renewable energy.

As the guiding document, the Voluntary Certification Scheme for Zero Carbon Energy Certificates - General Rules establishes the structure of the certification system, clarifies the responsibilities of all relevant parties, and standardizes the whole life cycle from certification to cancellation of the certificates, so as to guarantee the environmental rights and interests of the Zero Carbon Energy Certificates.

A series of standards of Voluntary Certification Scheme for Zero Carbon Energy Certificates - Certification Code are formulated for specific renewable energy util ization, covering all areas of non-electricity utilization of renewable energy, providing normative guidance for the certification of different types of renewable energy projects, aiming to ensure compliance, voluntariness, uniqueness, transparency, accuracy, conservatism, etc.

This document provides the necessary references for the certification of zero-carbon energy certificates in the field of biomass thermal energy in terms of the accounting content, the accounting boundary, the accounting steps and methods, the sources of accounting data and quality management, the verification procedures, and the certification procedures, which covers the key links in the certification of zero-carbon energy certificates in the field of biomass thermal energy, to regulate the certification work, to safeguard the quality of the certification, and to provide guidance and references for the participation of the relevant parties.

Voluntary certification scheme for zero carbon energy certificates—Specification for

certification of biomass thermal energy

1 Scope

This document specifies the accounting content, accounting boundary, accounting steps and methods, accounting data sources, accounting quality management, verification procedures, and certification procedures for certification of zero-carbon energy certificates for biomass thermal energy.

This document is applicable to the accounting, verification and certification of Zero Carbon Energy Certificates for biomass thermal energy.

2 Normative references

The contents of the following documents constitute indispensable provisions of this document by means of normative references in the text. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

GB/T 2589 General rules for calculation of the comprehensive energy consumption

GB 17167 General principle for equipping and managing of the measuring instrument of energy in organization of energy using

GB/T 30727 Determination of calorific value for solid biofuels

GB/T 32224 Heat meters

GB/T 34060 Steam heat calculation method

GB/T 35211 Measurement of nature gas calorific value—Continuous combustion

CJ/T 313 Sampling and analysis methods for domestic waste

T/CAP ID 006 Voluntary certification scheme for zero carbon energy certificates—general rules

3 Terms and definitions

For the purposes of this document, the terms and definitions given in GB/T 30366-2013 and the following apply.

3. 1

Biomass

All organic matters formed directly or indirectly by the use of photosynthesis in green plants, including plants, animals and micro-organisms excluding fossil fuels, as well as organic matter produced by the excretion and metabolism of these living organisms. Biomass can be categorized into agricultural biomass, forestry biomass, municipal solid waste, and animal waste.

NOTE : Rewirte GB/T 30366—2013，Definition 2.1.

3. 2

Biomass thermal energy

Thermal energy generated from the use of biomass as a fuel for heating.

3. 3

Biomass heating project

Project that utilizes biomass thermal energy to provide heat externally.

Note: They mainly include agricultural and forestry biomass combined heat and power (CHP) projects, waste incineration CHP projects, and biomass-based clean heat supply projects.

3. 4

Percent of zero carbon energy

The percentage of zero-carbon energy with respect to the total energy in the main production system before production, within the accounting boundary.

Note: In this document, it equals the percentage of zero carbon energy in the total amount of energy produced or supplied.

4 Accounting content and boundaries

4,1 Accounting content

Total zero carbon energy produced or supplied in the energy activities of its production system that shall be accounted for and reported by the subject of application for certification through the certification platform.

4. 2 Accounting boundary

4.2.1 The subject of application for certification shall identify the accounting boundaries and the timeframe involved in zero carbon energy certificates, as well as the target recipients of the work.

4.2.2 The subject of application for certification shall take as its boundary an enterprise legal person or a self-accounting unit treated as a legal person to account for and report the amount of zero-carbon energy generated or supplied by its production system. Production system includes the main production system, auxiliary system and accessorial system directly serving for the production; auxiliary system including dynamical system, power supply, water supply, laboratory, mechanic, warehouse, transportation, etc., and the accessorial system including the production commanding system (factory) as well as the departments and facilities serving for the production in the factory area (such as workers' cafeteria, workshop bathroom, health care station, etc.).

4.2.3 The determination of the accounting boundary should take reference to the facilities and business scope of the subject of application for certification and their production process flow, which shall include energies in the raw material transportation and the energy production (heat production and supply), as shown in Figure 1. For instance, fossil energy used in the transportation of raw materials, raw material energy, fossil energy,

purchased electricity, and reused energy in production systems for heat production and supply.

Figure 1 Schematic diagram of the accounting boundary

5 Accounting steps and methods

5. 1 Accounting steps

The workflow of accounting and reporting for the subject of application for certification includes the following steps:

a) Identify the accounting boundaries and collect data on activities on each phase;

b) Calculate the amount of energy from raw materials, energy from fossil energy, consumption of purchased electricity, reuse of energy among others at each phase within the accounting boundary;

c) Summarize and account for the zero-carbon energy produced and supplied by the subject of application for certification and other related information;

d) Formulate the accounting report.

5.2 Accounting method

The amount of zero-carbon energy that the subject of application for certification is applying to certifyQz , is calculated with equation (1):

Qz = RATIOz × Qjc __ Qys __ Qs __ Qjj __ Qhy ·········· (1)

where:

Qz--Zero carbon energy amount, i.e. certified energy amount, the energy corresponding to the issued zero carbon energy certificate, in gigajoules (GJ);

RATIOz-- Percentage of energy directly used for heat production in the energy production phase, i.e. percent of zero-carbon energy, %;

Qjc--The total amount of thermal energy supplied outside by the subject of application for certification that is monitored online by the certification platform, in gigajoules (GJ); Qys-- Energy from fossil energy sources used during the transportation of raw materials, in gigajoules (GJ);

Qs-- Energy contained in the water used directly for thermal energy production in the energy production phase, in gigajoules (GJ);

Qjj-- Energy indirectly used for heat production in the energy production phase, in gigajoules (GJ);

Qhy-- Energy reused in the production system in the energy production phase, in gigajoules (GJ).

Note: Sections 5.3 and 5.4 indicate accounting for energy input and energy reuse, while sections 5.5 and 5.6 concern accounting for energy output.

5. 3 Energy in the transportation of raw materials

The total fossil energy in the raw material transportation is calculated according to equation (2), based on the fossil energy consumption and the corresponding calorific value:

Qys = Σqi × mi × 10__3 ··············· (2)

where:

qi-- Dry basis low level calorific value of the Type i fossil energy source, in kilojoules per kilogram (kJ/kg);

mi-- Mass of the Type i fossil energy source, in tons (t); 10__3--Unit conversion factor, dimensionless;

i--Type i of fossil energy.

Note: The dry basis low level calorific value of fossil energy can be measured with reference to Annex A, GB/T 2589-2020 or through corresponding standards.

5.4 Energy in the energy production phase

5.4.1 Energy directly used for heat production

The energy directly used in the energy production phase for heat production, i.e. the energy in the main production system, is calculated according to equation (3):

Qzj = Qyl + Qzj,hs ················ (3)

where:

Qzj-- Total energy directly used for heat production in the energy production phase, in gigajoules (GJ);

Qyl-- Total energy of biomass raw materials directly used for heat production in the energy production phase, in gigajoules (GJ);

Qzj,hs-- Total fossil energy directly used for heat production in the energy production phase, in gigajoules (GJ);

5.4.1.1 Total energy of biomass raw materials directly used for heat production

The total energy Qyl of the biomass raw material directly used for thermal energy production in the energy production phase is calculated according to equation (4):

Qyl = qyl × myl × 10__3 ··············· (4)

where:

qyl-- Dry basis low level calorific value of biomass raw material, in kilojoules per kilogram (kJ/kg);

myl-- Mass of biomass raw material, in tons (t); 10__3--Unit conversion factor, dimensionless.

Note: The biomass raw material shall be measured for dry basis low level calorific valueqyl in

accordance with the relevant standards. The calorific value of solid biomass fuel shall be measured according to GB/T 30727, the calorific value of domestic garbage shall be measured according to

CJ/T313, and the calorific value of biogas shall be measured according to GB/T 35211.

In the case of biomass raw materials containing a fossil carbon component, the main biomass raw materials shall be recorded and preserved in advance, to analyze and calculate the percentage of fossil carbon and non-fossil carbon components in the main biomass raw materials, for separate energy calculations.

Among them, the energy of fossil carbon in biomass feedstock Qyl,hs is calculated according to equation (5).

Qyl,hs = Qyl × FCC × FFC ·············· (5)

where:

Qyl,hs--Energy of fossil carbon contained in biomass raw material, in gigajoules (GJ); FCC-- Percentage of total carbon content in biomass raw material, %;

FFC-- Percentage of fossil carbon to total carbon content in biomass raw material, %.

5.4.1.2 Total fossil energy directly used for heat production

The total amount of fossil energy used directly for heat production in the energy production phase Qzj,hs shall be calculated according to equation (2) on the basis of the amount of fossil energy used for auxiliary combustion in the main production system and their corresponding calorific values.

5.4.1.3 Energy contained in water used directly for thermal energy production

The energy contained in the water used directly for heat production at the energy production phase Qs shall be calculated in accordance with GB/T 32224.

5.4.2 Energy indirectly used for heat production

The energy indirectly used for heat production in the energy production phase Qjj is calculated according to equation (6):

Qjj = Qjj,hs + Qyd ················ (6)

where:

Qjj,hs-- Total fossil energy indirectly used for heat production in the energy production phase, in gigajoules (GJ);

Qyd-- Total electricity indirectly used for heat production in the energy production phase, in gigajoules (GJ);

Note: If all electricity used within the accounting boundary is green power, Qyd =0, otherwise it shall be discounted accordingly.

5.4.2.1 Total fossil energy indirectly used for heat production

The total amount of fossil energy used indirectly for heat production in the energy production phase Qjj,hs shall be calculated according to equation (2) on the basis of the amount of fossil energy used in the auxiliary and accessorial production system and their corresponding calorific values.

5.4.2.2 Total electricity consumption indirectly used for heat production

The total electricity consumption indirectly used for heat production in the energy production phase Qyd shall be accounted for on the basis of meter access data for off-grid electricity within the accounting boundary.

In case of electricity consumption within the factory for other purposes, the source of electricity should be identified; for example, if the energy source is fossil energy this electricity consumption shall be accounted for as fossil energy, but if it is from renewable energy sources, it could not be accounted for.

5.4.3 Total energy reused

The energy reuse involved in this document is mainly based on water reuse, and other forms of energy usage, if any, shall be validated accordingly.

The total energy reused in the energy production phaseQhy shall be calculated based on GB/T 32224.

5.5 Percent of zero-carbon energy

The percentage of zero-carbon energy RATIOz is calculated according to equation (7):

5.6 Total thermal energy supplied outside

The total thermal energy supplied outside Qjc , all be calculated according to the corresponding criteria based on the form of thermal energy supplied outside. Steam shall be calculated according to GB/T 34060 and hot water shall be calculated according to GB/T 32224.

6 Sources of accounting data and quality control

6. 1 Sources of accounting data

6.1.1 Sequence of accounting data acquisition

The monitoring equipment shall meet the requirements of national standards, local standards and industry standards, and the instrumentation shall be properly calibrated on a regular basis to ensure the accuracy of the verification data. The data acquisition priorities for the accounting of Zero Carbon Energy Certificates are shown in Table 1:

Table 1 Data acquisition priority

6.1.2 Frequency of accounting data acquisition

The accounting data, except those monitored in real time by the certification platform, shall be acquired at the frequency specified in the monitoring plan of the subject of application for certification. The monitoring plan shall conform to the national and local laws as well as regulations, policies, standards, and the platform management rules.

6. 2 Accounting quality management

The subject of application for certification shall reinforce the management of data quality in the Zero Carbon Energy Certificates, including, but not limited to:

a) Establish rules for the accounting and reporting of zero-carbon energy certificates for biomass thermal energy in enterprises, including the responsible organization and personnel, workflow and content, work cycle and time nodes, etc.; a dedicated staff

member is assigned to be respons ible for the accounting and reporting of zero-carbon energy cert ificates in enterpr ises;

b) Classify the account ing data of zero carbon energy cert ificates accord ing to their priority, with a l ist of the account ing data of zero carbon energy certificates of enterpr ises, wh ich provides correspond ing requ irements for the acqu is it ion of account ing data of d ifferent c lasses;

c) Evaluate the exist ing mon itoring cond itions in accordance with GB 17167, to constant ly improve their mon itor ing capacity, and formulate correspond ing monitor ing p lans to collect activity data; regu lar ly maintain the measuring instruments, test ing equipment and onl ine monitor ing instruments, with clear records;

d) Estab lish an internal review system for Zero Carbon Energy Certificate reports, regu lar ly cross-check production activity data to identify potent ial risks of data errors and propose appropr iate solut ions.

e) Estab lish a sound data record system for Zero Carbon Energy Certificates, includ ing informat ion such as data source, t ime of data acqu isit ion and relevant responsib le persons.

7 Verification

7. 1 Verification principles

7.1.1 Objective and independent

The verification organization shall maintain its independence from the certified project activity, remain objective throughout the verification activity without bias or conflict of interest.

7.1.2 Fair and just

The findings, conclusions and reports of the verification organization in its verification activities shall be true and accurate. The report shall include unresolved differences of opinion, in addition to significant obstacles during the certification.

7.1.3 Honest and trustworthy

The verification organization shall exercise a high degree of responsibility to ensure the integrity and confidentiality of the verification.

7.1.4 Professional

The verification organization shall possess the necessary professional skills for verification, able to exercise professional judgment in accordance with the importance of the task and the specific requirements of the client.

7. 2 Verification Process

7.2.1 Verification process

The process of verification of zero carbon energy certificates carried out by the verification organization consists of three phases, as shown in Figure 2.

Figure 2 Verification process

7.2.2 Preparation

Upon receipt of the notification from the certification platform, the verification organization shall establish a verification team with professional skills in accordance with the project status, as well as the field of expertise and technical competence of the verifier, to prepare for the verification in advance.

7.2.3 Implementation of verification

The verification organization shall act in accordance with the corresponding certification standards and requirements and perform effective on-site visits after determination of the rationality of the materials to be verified, confirmation of the focus of the on-site visit and formulation of the on-site visit plan. The verification organization shall prepare a verification report based on the on-site findings and conduct a technical review to ensure that the verification report is truthful, objective and logically clear.

7.2.4 Reporting

After the technical review, the verification organization shall submit the verification report and other supporting relevant materials to the certification platform. The verification body shall keep all written and electronic documents in the verification process in a secure and confidential manner for at least 10 years.

7. 3 Verification content

The verification organization shall conduct verification in accordance with the rules and relevant requirements of the certification platform to confirm the uniqueness of the involved zero-carbon energy certificates, the correctness of the accounting results, and validate the production facilities, the configuration of the measurement equipment and the operation of the monitoring system, and the implementation of the monitoring plan, etc.

8 Certification

The certification of Zero Carbon Energy Certificates shall be conducted in accordance with T/CAP ID 006 and related regulations.

Annex A

(Normative)

Energy conversion and reference value

Due to the variety of non-electric renewable energy sources, the conversion between different energy sources should take reference to the relevant provisions of GB/T 2589- 2020, with the energy unit unified as gigajoule (GJ). If the energy is not in joules, it is converted to gigajoules by means of a standard coal quantity.

Note 1: 1 kgce = 29307.6 kJ = 0.0293076 GJ = 7000 kcal

Note 2: 1 kW ·h = 3600000 J = 0.0036 GJ

Table A.1 Standard coal conversion factors for energy sources (for reference)

Annex B

(Informative)

Schematic diagram of energy accounting for biomass heating project in

different phases

A schematic diagram of the energy accounting for each phase of the biomass heating project is shown in Figure B.1.

Figure B.1 Schematic diagram of energy accounting for the energy production phase

Annex C

(Informative)

Accounting form for Zero Carbon Energy Certificate for Biomass Thermal Energy

C.1 Energy in the transportation of raw materials (Qys)

C.2 Energy directly used for heat production during the energy production phase (Qzj)

C.3 Energy indirectly used for heat production in the energy production phase (Qjj)

C.4 Energy reused in the energy production phase (Qhy)

C.5 Percent of zero-carbon energy (RATIOz)

C.6 Total thermal energy supplied outside

C.7 Zero-carbon energy accounted for (Qzj)

Bibliography

[1] GB/T 30366—2013 Terminology related to biomass

[2] Regulat ions on the Admin istrat ion of Carbon Emiss ion Trading (Trial) No. 19 Order of the Ministry of Ecology and Environment

[3] Ru les for the Admin istrat ion of Carbon Emiss ion Right Registrat ion (Trial) No. 21 Announcement of the Ministry of Ecology and Environment, 2021

[4] Ru les for the Administration of Carbon Emiss ion Trad ing (Trial) No. 21 Announcement of the Ministry of Ecology and Environment, 2021

[5] Rules for the Admin istrat ion of Carbon Emission Right Sett lement (Trial) No. 21 Announcement of the Ministry of Ecology and Environment, 2021

[6] Gu ide l ines on Greenhouse Gas Emiss ion Account ing Methodology and Reporting for Power Generat ion Enterpr ises in Ch ina (Trial) Cl imate Divis ion, NDRC General Office [2013] No. 2526

[7] Gu idel ines for Ver ificat ion of Enterpr ise Greenhouse Gas Emiss ion Reports (Trial) General Office of Ministry of Ecology and Environment, Cl imate Letter [2021] No. 130

[8] Gu ide l ines on Account ing and Report ing of Greenhouse Gas Emissions for Enterprises Power Generat ion Faci lit ies General Office of Ministry of Ecology and Environment, Cl imate Letter [2022] No. 485

[9] Gu ide l ines on Ver ificat ion Techniques of Greenhouse Gas Emiss ions for Enterpr ises Power Generat ion Faci lit ies General Office of Ministry of Ecology and Environment, Cl imate Letter [2022] No. 485

[10] GB/T 27029 Conformity assessment—General princip les and requirements for validation and verification bodies

[11] GB/T 32150 General guideline of the greenhouse gas emissions accounting and reporting for industrial enterprises

[12] RB/T 175 Requirements for b ioenergy sustainab i lity certificat ion