I M P O R TA N C E   O F   D O C U M E N TAT I O N & ITS SIGNIFICANCE


Documentation plays a significant role in understanding system components (model no, warranty, user manual, contact details, safety etc.). In RTPV systems there is no qualified person always available on site therefore, access to information especially useful during O&M. For instance, if the inverter needs to be replaced, one requires the warranty information, model number, datasheets etc. All information is available at one place, in case of an emergency the customer should have an easily accessible ready reference that gives all information about the system.

  • System Documentation

  • Maintenance Documentation

  • Component Documentation

System Documentation

It covers all the documents that gives the basic overview of the rooftop solar PV system.

System description diagram

  • It gives the basic overview of understanding the basic system framework.

Equipment layout diagram/ Interconnection

  • Indicates the physical layouts including dimensions of the rooftop/ terrace as well as location of each equipment such as PV modules, inverters, DC and AC junction boxes, transformers (if applicable), etc. with clear identification and labeling of each equipment. This diagram covers the physical aspects of the installation.

  • It much be properly labeled so that the location of any string or module can be easily identified.

  • It is useful if any engineer or technician arrives for maintenance or troubleshooting.

Wire and earthing layout diagram

  • It appears similar to the equipment layout diagram, but indicates the electrical interconnections including PV modules, junction boxes, inverters, transformers (if applicable), Disconnector and various equipment, up to the interconnection or meter. In addition, this drawing also indicates the earthing interconnection scheme for various DC and AC equipment and lightning arrestor, while also clearly showing the location of the earth pits.

  • It is useful if any engineer or technician arrives for maintenance or troubleshooting.

Single Line Diagram (SLD)

  • Indicates the electrical configuration of the PV system with key specifications of various components.

  • It is useful if any engineer or technician arrives for maintenance or troubleshooting.

Generation estimation report

  • Based on historical meteorological data and expected plant losses and performance parameters. Such reports can be developed manually, or using software such as PVsyst or PVSOL.

Maintenance Documentation

It covers all the documents which gives details of the service provider. It is very essential to get a service/replacement when a product malfunctions.

Service documentation

  • Invoice of O&M Service provider

  • Service contract must include: At what intervals the scheduled maintenance will be performed? What kind of services will be included in the maintenance contract? What will be the response time when there is service outage? What sort of system problem will incur the additional cost for the customer?

  • It is very essential to ensure the right level of service is received.

Contact Information

  • Various stake holders such as installer, project developer, EPC contractor, designer, lending agency etc.

  • O&M Service provider

Component Documentation

It covers all the documents which gives details of all components. It is very essential to get a replacement when a product malfunctions.

Component Datasheets

  • Containing datasheets of the PV modules, inverters, transformers (if applicable), DC and AC junction boxes, DC and AC cables, DC cable connectors, earthing cable, lightning arrestor, surge protection devices, Disconnector/ isolators, earth pit, monitoring system (if applicable) and energy meter

  • Datasheets will provide all the details of your product.

  • It is useful if any engineer or technician arrives for maintenance or troubleshooting.

Warranty Certificates

  • Containing warranty certificates of the PV modules, inverters, transformers (if applicable), lightning arrestor (if applicable), etc. by the Original Equipment Manufacturer (OEM).

  • It is very essential to get a replacement when a product malfunctions.

Other Certificates

  • IEC and other certificates for PV modules & Inverters

  • Containing test certificates of PV Modules so that the quality of each individual module is maintained.

  • Essential for safety purpose also.

Invoices of all products

  • Contains bills of all the products purchased

  • It is very essential to get a replacement when a product malfunctions.