Executive Summary
This document provides recommended best practices for photovoltaic system (PV) operations and maintenance. This guide may not include all operations and maintenance routines or scenarios, but provides general guidance for safety practices, management, operations, and preventative maintenance of PV systems.
Solar PV is operational during daylight hours for base, intermediate or peak load power generation replacing kW/MW normally supplied by the local utility.
Most PV systems can reduce grid dependency with the addition of energy storage and provide relief for the electrical grid during high consumption periods.
Key components of PV Systems include:
- Roof or ground mounted Direct Current (DC) power generating photo-voltaic panels
- Direct Current (DC) to Alternating Current (AC) inverters
- Electrical distribution systems
- Kilowatt hour (kWh) and current (amperes) metering and monitoring
- Electrical distribution system disconnects and breakers
PV systems require periodic, scheduled maintenance to maintain reliability and operational efficiency. One of the most important areas of an O&M program is safety. Only qualified and trained personnel or contractors should be permitted to service or maintain PV systems. The most dangerous part of a solar electric system is the electricity generated by the PV system. Personal protective equipment for arc-flash protection, lock-out/tag-out procedures, and rooftop safety are required when working around PV systems. Keeping contractors and/or employees as safe as possible by preparing them for prevention of hazards and fall risks associated with PV systems.
Scope
The scope of the operational practice covers grid tied and grid independent solar photovoltaic systems deployed in cable operator’s infrastructure.
Benefits
This document provides recommended best practices for photovoltaic system (PV) operations and maintenance to help system owners maintain performance of such systems.
Intended Audience
Solar PV system owners and facility managers should familiarize themselves with this operational practice.