Kazakhstan Communication Photovoltaic Base Station Maintenance

Both energy and availability are necessary metrics for assessing PV systems. If the stakeholders involved in a contract are most interested in energy production, and if the contract holds parties responsible for energy production, then it is crucial that energy losses associated with unavailability and system performance are accounted for.

Tracking this availability (or unavailability) provides transparency into the equipment reliability state to all parties involved in an O&M services contract. In most PV operation contracts, energy will be the driving factor of whether the system is operating as expected.

Advanced operation of a PV plant such as modulating output or power factor can confound the drawing of conclusions from monitored data. A monitoring system should account for clipping of output due to high DC-to-AC ratio, interconnect limits, and called-for curtailment or any other reason.

In the field of PV plant operations, operations quality is determined by (1) the ratio of the amount of energy harvested to the potential amount of energy available for a particular plant and (2) plant equipment availability over time.

Topologies for PV plus storage systems are typically determined by a combination of regulatory constraints and technical inputs paired with anticipated system behavior and associated system efficiency and cost.

PV systems should be designed and installed with such possibilities in mind, and measures should have been incorporated such as two-column racks (rather than post-strut), thick or non-glass covers, rigid backsheets, and through-bolted clamps. The designer should specify PV modules with high ratings for both uplift and down-force pressure.