{"id":391933,"date":"2024-10-20T04:01:49","date_gmt":"2024-10-20T04:01:49","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-iec-61724-12021-tc\/"},"modified":"2024-10-26T07:29:09","modified_gmt":"2024-10-26T07:29:09","slug":"bs-en-iec-61724-12021-tc","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-iec-61724-12021-tc\/","title":{"rendered":"BS EN IEC 61724-1:2021 – TC"},"content":{"rendered":"

This International Standard outlines terminology, equipment, and methods for performance monitoring and analysis of photovoltaic (PV) systems. It also serves as a basis for other standards which rely upon the data collected.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
1<\/td>\n30450598 <\/td>\n<\/tr>\n
101<\/td>\nA-30400815 <\/td>\n<\/tr>\n
102<\/td>\nundefined <\/td>\n<\/tr>\n
105<\/td>\nAnnex ZA (normative)Normative references to international publicationswith their corresponding European publications <\/td>\n<\/tr>\n
107<\/td>\nEnglish
CONTENTS <\/td>\n<\/tr>\n
111<\/td>\nFOREWORD <\/td>\n<\/tr>\n
113<\/td>\nINTRODUCTION
Figure 1 \u2013 Possible elements of PV systems <\/td>\n<\/tr>\n
114<\/td>\nFigures <\/td>\n<\/tr>\n
115<\/td>\n1 Scope
2 Normative references <\/td>\n<\/tr>\n
116<\/td>\n3 Terms and definitions <\/td>\n<\/tr>\n
120<\/td>\n4 Monitoring system classification <\/td>\n<\/tr>\n
121<\/td>\n5 General
5.1 Measurement precision and uncertainty
5.2 Calibration
5.3 Repeated elements
5.4 Power consumption
5.5 Documentation
5.6 Inspection
6 Data acquisition timing and reporting
6.1 Samples, records, and reports <\/td>\n<\/tr>\n
122<\/td>\nFigure 2 \u2013 Samples, records and reports <\/td>\n<\/tr>\n
123<\/td>\n6.2 Timestamps
6.3 Parameter names
7 Required measurements
Tables
Table 1 \u2013 Sampling and recording interval requirements <\/td>\n<\/tr>\n
125<\/td>\nTable 2 \u2013 Measured parameters and requirements <\/td>\n<\/tr>\n
128<\/td>\n8 Irradiance
8.1 Sensor types
8.2 General requirements
8.2.1 Overview
8.2.2 Sensor requirements
Table 3 \u2013 Multiplier referenced in Table 2 <\/td>\n<\/tr>\n
129<\/td>\n8.2.3 Sensor locations
Table 4 \u2013 Irradiance sensor requirements <\/td>\n<\/tr>\n
130<\/td>\n8.2.4 Recalibration
8.2.5 Soiling mitigation
8.2.6 Dew and frost mitigation <\/td>\n<\/tr>\n
131<\/td>\n8.2.7 Inspection and maintenance
8.2.8 Sensor alignment
8.3 Measurements
8.3.1 Global horizontal irradiance
8.3.2 In-plane irradiance <\/td>\n<\/tr>\n
132<\/td>\n8.3.3 In-plane rear-side irradiance
8.3.4 In-plane rear-side irradiance ratio
8.3.5 Horizontal albedo
8.3.6 Direct normal irradiance
8.3.7 Diffuse horizontal irradiance
8.3.8 Spectrally matched irradiance <\/td>\n<\/tr>\n
133<\/td>\n8.3.9 In-plane irradiance for concentrator systems <\/td>\n<\/tr>\n
134<\/td>\n8.3.10 Spectral irradiance for concentrator systems
8.3.11 Circumsolar measurements for concentrator systems <\/td>\n<\/tr>\n
135<\/td>\n8.3.12 Satellite remote sensing of irradiance <\/td>\n<\/tr>\n
136<\/td>\n9 Environmental factors
9.1 PV module temperature
9.2 Ambient air temperature <\/td>\n<\/tr>\n
137<\/td>\n9.3 Wind speed and direction
9.4 Soiling ratio <\/td>\n<\/tr>\n
138<\/td>\n9.5 Rainfall
9.6 Snow
9.7 Humidity
10 Tracker system
10.1 Single-axis trackers
10.2 Dual-axis trackers
10.2.1 Monitoring
10.2.2 Pointing error sensor alignment <\/td>\n<\/tr>\n
139<\/td>\n11 Electrical measurements
11.1 Inverter-level measurements
11.2 Plant-level measurements
Table 5 \u2013 Inverter-level electrical measurement requirements
Table 6 \u2013 Plant-level AC electrical output measurement requirements <\/td>\n<\/tr>\n
140<\/td>\n12 Data processing and quality check
12.1 Night
12.2 Quality check
12.2.1 Removing invalid readings
12.2.2 Treatment of missing data <\/td>\n<\/tr>\n
141<\/td>\n13 Calculated parameters
13.1 Overview
13.2 Summations
13.3 Irradiation
Table 7 \u2013 Calculated parameters <\/td>\n<\/tr>\n
142<\/td>\n13.4 Electrical energy
13.4.1 General
13.4.2 DC output energy
13.4.3 AC output energy
13.5 Array power rating
13.5.1 DC power rating <\/td>\n<\/tr>\n
143<\/td>\n13.5.2 AC power rating
13.6 Yields
13.6.1 General
13.6.2 PV array energy yield
13.6.3 Final system yield <\/td>\n<\/tr>\n
144<\/td>\n13.6.4 Reference yield
13.6.5 Bifacial reference yield
13.7 Yield losses
13.7.1 General
13.7.2 Array capture loss <\/td>\n<\/tr>\n
145<\/td>\n13.7.3 Balance of systems (BOS) loss
13.8 Efficiencies
13.8.1 Array (DC) efficiency
13.8.2 System (AC) efficiency
13.8.3 BOS efficiency <\/td>\n<\/tr>\n
146<\/td>\n14 Performance metrics
14.1 Overview
14.2 Summations
14.3 Performance ratios
14.3.1 Performance ratio
Table 8 \u2013 Performance metrics <\/td>\n<\/tr>\n
147<\/td>\n14.3.2 Temperature-corrected performance ratios <\/td>\n<\/tr>\n
149<\/td>\n14.3.3 Bifacial performance ratios
14.4 Performance indices <\/td>\n<\/tr>\n
150<\/td>\n15 Data filtering
15.1 Use of available data
15.2 Filtering data to specific conditions
15.3 Reduced inverter, grid, or load availability <\/td>\n<\/tr>\n
151<\/td>\nAnnexes
Annex A (informative) Sampling interval
A.1 General considerations
A.2 Time constants
A.3 Aliasing error <\/td>\n<\/tr>\n
152<\/td>\nA.4 Example <\/td>\n<\/tr>\n
153<\/td>\nAnnex B (informative) Module temperature sensor selection and attachment
B.1 Objective
B.2 Sensor and material selection
B.2.1 Optimal sensor types
B.2.2 Optimal tapes <\/td>\n<\/tr>\n
154<\/td>\nB.2.3 Cyanoacrylate adhesives and backsheet integrity
B.3 Sensor attachment
B.3.1 Permanent versus temporary
B.3.2 Attachment location
B.3.3 Bifacial modules
B.3.4 Method <\/td>\n<\/tr>\n
155<\/td>\nFigure B.1 \u2013 Sensor attachment, permanent
Figure B.2 \u2013 Sensor attachment, temporary <\/td>\n<\/tr>\n
156<\/td>\nFigure B.3 \u2013 Sensor element wire strain relief <\/td>\n<\/tr>\n
157<\/td>\nAnnex C (normative) Soiling measurement using clean and soiled PV reference device pair
C.1 Overview
C.2 Equipment
C.3 Normalization <\/td>\n<\/tr>\n
158<\/td>\nC.4 Measurement method 1 \u2013 max power reduction due to soiling
C.5 Measurement method 2 \u2013 short-circuit current reduction due to soiling
C.6 Non-uniform soiling <\/td>\n<\/tr>\n
159<\/td>\nC.7 Daily average value
C.8 Renormalization <\/td>\n<\/tr>\n
160<\/td>\nAnnex D (informative) Derate factors <\/td>\n<\/tr>\n
162<\/td>\nAnnex E (normative) Systems with local loads, storage, or auxiliary sources
E.1 System types
Figure E.1 \u2013 Energy flow between possible elements of different PV system types <\/td>\n<\/tr>\n
163<\/td>\nTable E.1 \u2013 Elements of different PV system types <\/td>\n<\/tr>\n
164<\/td>\nE.2 Parameters and formulas
Table E.2 \u2013 Parameters and formulas for different system types <\/td>\n<\/tr>\n
171<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Tracked Changes. Photovoltaic system performance – Monitoring<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2022<\/td>\n172<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":391942,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-391933","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-bsi","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/391933","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/391942"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=391933"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=391933"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=391933"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}