Electrical energy · Calculation Rules
- Lifecycle status
- Candidate
- Content maturity
- Authored methodology
- Current version
- No published versionLast updated
- Readiness
- Review required
Methodology and translation states come from the source record; publishing this website does not change their review status.
Content languages
zh-CN · Aligned
Status, classification and source details
Readiness
- Warnings methodology_not_reviewed Authored methodology is candidate guidance and still requires methodology review.
Classification mapping
CPC 3.0:17100 · exact
Source
Calculation Rules
| rule_id | Applies to | Formula or rule | Inputs | Output | source_ids |
|---|---|---|---|---|---|
| normalization | all cards | Exchange = attributable period quantity / D. Reconcile inventories and cancel internal transfers before aggregation. | cp_output; row-specific cp records | per 1 MJ reference flow | |
| physical_balance | production | D is independently calibrated metered accepted net electrical output MJ at the selected gate, positive after stock reconciliation;1 kWh =3.6 MJ. One dataset uses exactly one generation, storage or delivery output basis; never sum charging, gross generation, net export and delivery as outputs. Generation D equals actual metered net export; gross-minus-own-use may reproduce it only with matched meter boundaries and periods, keeping purchased auxiliaries as separate inputs and not subtracting them twice. Imported/resold electricity and internal transfers are identified independently. A mix uses each actual source contribution on the same net gate basis, with weights summing to1 and source losses/providers documented; do not multiply a source gross-output factor by net shares. Delivered electricity reconciles matched network input, accepted output, other exports, technical losses, theft/meter gaps and stock; input = D/(1-l) only for independently established matching loss fraction0<=l<1 and no unaccounted exports. Storage reconciles measured charging = discharged/other useful exports + measured electrical losses + actual stock increase on the same meter boundary; do not invent roundtrip efficiency, lifetime or avoided generation. Fuel energy is actual consumed mass times matched as-received NCV, or measured volume/density/calorific value at stated conditions; separate electrical MJ from thermal fuel MJ. Gas mass/standard volume conversion requires measured density/reference T/P, not assumed composition. Direct gas emissions use measured species/load or documented compatible activity factors; do not reuse purchased-electricity factors as onsite fuel emissions. Fossil/biogenic CO2, CH4,N2O and captured carbon are distinct; no assumed zero biomass/waste CO2. Useful steam heat = matched steam mass times supplied-minus-return enthalpy; hot-water heat uses actual mass and measured enthalpy difference, not total water mass as energy. Useful CHP heat and electricity stay separate co-products before declared allocation. Lifetime material/infrastructure quantities are assigned once over measured/justified expected accepted electrical throughput with sensitivity, never invented machine mass or output. | Matched mass, volume, composition and stock measurements | Balance residual and uncertainty |
Data Quality Requirements
| requirement_id | Applies to | Requirement | Evidence |
|---|---|---|---|
| representativeness | dataset | Use matching production and exchange periods, actual technology, geography and supplier state. Record startup, shutdown, seasonal variation and substitutions. | collection records |
| identity_and_ranges | all cards | Unresolved identities and missing independent range evidence remain explicit. Do not replace measurement by a guessed industry range or by missing-as-zero. | manifest review metadata |
9. Validation Rules
| rule_id | Applies to | Rule | source_ids |
|---|---|---|---|
| validate_reference | final_product | Verify 1 MJ, positive D, product state, property/unit and every required qualifier. Each dataset fixes one product and route. | |
| validate_balance | site | D is independently calibrated metered accepted net electrical output MJ at the selected gate, positive after stock reconciliation;1 kWh =3.6 MJ. One dataset uses exactly one generation, storage or delivery output basis; never sum charging, gross generation, net export and delivery as outputs. Generation D equals actual metered net export; gross-minus-own-use may reproduce it only with matched meter boundaries and periods, keeping purchased auxiliaries as separate inputs and not subtracting them twice. Imported/resold electricity and internal transfers are identified independently. A mix uses each actual source contribution on the same net gate basis, with weights summing to1 and source losses/providers documented; do not multiply a source gross-output factor by net shares. Delivered electricity reconciles matched network input, accepted output, other exports, technical losses, theft/meter gaps and stock; input = D/(1-l) only for independently established matching loss fraction0<=l<1 and no unaccounted exports. Storage reconciles measured charging = discharged/other useful exports + measured electrical losses + actual stock increase on the same meter boundary; do not invent roundtrip efficiency, lifetime or avoided generation. Fuel energy is actual consumed mass times matched as-received NCV, or measured volume/density/calorific value at stated conditions; separate electrical MJ from thermal fuel MJ. Gas mass/standard volume conversion requires measured density/reference T/P, not assumed composition. Direct gas emissions use measured species/load or documented compatible activity factors; do not reuse purchased-electricity factors as onsite fuel emissions. Fossil/biogenic CO2, CH4,N2O and captured carbon are distinct; no assumed zero biomass/waste CO2. Useful steam heat = matched steam mass times supplied-minus-return enthalpy; hot-water heat uses actual mass and measured enthalpy difference, not total water mass as energy. Useful CHP heat and electricity stay separate co-products before declared allocation. Lifetime material/infrastructure quantities are assigned once over measured/justified expected accepted electrical throughput with sensitivity, never invented machine mass or output. | |
| validate_coverage | handoff | Verify each applicable exchange, its provider or environmental compartment and final waste fate; identify skipped checks, unresolved identities, missing measurements and upstream gaps. Errors or unassessed mandatory coverage cannot be labelled complete. |
10. Published Dataset Profile
| Field | Value |
|---|---|
| dataset_role | foreground_dataset |
| downstream_use | secondary_dataset; background_dataset |
| allowed_use | Supply1 MJ accepted net electrical energy at a specified meter interface; this is not1 MJ fuel heat or1 kg equipment |
| excluded_use | Fuel, useful heat or certificates as reference products; network service alone; electrical equipment manufacture; assumed avoided electricity |
| required_metadata | site/geography/year; actual technology or source portfolio and providers; AC/DC, voltage/frequency, meter locations and calibration; generation gross/net, own-use source and matched net exports; delivery losses/voltage changes or charging/discharging and storage stock; accepted output period and positive D; actual fuel grade/moisture/NCV and fossil/biogenic fractions; heat enthalpy/return state if CHP; cooling withdrawal/return/consumption and basin; direct species/compartments and waste fate; measured construction/replacement/closure lifetime and accepted throughput; allocation and uncertainty; physical mix versus contractual attribute claim and retirement/residual disclosure. Representative ad12cfb1 is CN national AC production mix at plant35–330kV, not generic purchased or customer-delivered electricity; exact source weights and year are provider-defined. |
| required_quality_disclosure | Identity and measurement gaps; boundary coverage; uncertainty; allocation; temporal and geographical representativeness |
| update_trigger | Changed product, route, yield, supply, waste fate, site or representative period |
11. Data Sources
| Source id | Type | Reference | Used for |
|---|---|---|---|
| epd-electricity-scope | official_guidance | EPD International, PCR2007:08 public category description, listed version5.0.2, snapshot1 October2026. https://www.environdec.com/pcr-library/pcr2007-08 | Public technology/category scope only; full portal PDF was not acquired. No claimed PCR cutoff threshold, allocation formula or full conformity. |
| ipcc-stationary-2006 | official_guidance | IPCC, 2006 Guidelines Volume2 Chapter2 Stationary Combustion, corrected April2007, original PDF p.11/printed2.11, section2.3.1 and Equation2.1. https://www.ipcc-nggip.iges.or.jp/public/2006gl/pdf/2_Volume2/V2_2_Ch2_Stationary_Combustion.pdf | Fuel-specific activity and compatible gas-factor accounting; national inventory method does not supply a site default factor, oxidation fraction or complete LCA. |
| ghg-scope2-2015 | official_guidance | GHG Protocol, Scope2 Guidance2015, original PDF p.62/printed60, Table7.1. https://ghgprotocol.org/sites/default/files/2023-03/Scope%202%20Guidance.pdf | Unique electricity-attribute claims, retirement, temporal/market match and residual-mix disclosure; corporate direct-GHG claims are not zero life-cycle burdens. Revision consultation is not adopted as final guidance. |
| epa-chp-output | official_guidance | US EPA, Methods for Calculating CHP Efficiency, snapshot1 October2026, Total System Efficiency and net useful outputs. https://www.epa.gov/chp/methods-calculating-chp-efficiency | Net useful electric/thermal outputs and parasitic losses; no efficiency benchmark, example or automatic heat allocation. |
| cpc3-notes-2025 | official_guidance | UNSD, CPC Version 3.0 Explanatory Notes, 30 June 2025. https://unstats.un.org/unsd/classifications/Econ/Download/In%20Text/CPC_Ver_3.0_Exp_Notes_30Jun2025.pdf | Classification scope only; no process quantities. |
| ef-allocation-2021 | official_guidance | Commission Recommendation (EU) 2021/2279, Annex I section 4.5, consolidated 30 December 2021. https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:02021H2279-20211230 | Multifunctionality hierarchy; not a claim of complete PEF conformity. |
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