What is the minimum warranty period envisaged under the scheme?
Solar PV modules used in solar power plants /systems must be warranted for their output peak watt capacity, which should not be less than 90% at the end of 12 years and 80% at the end of 25 years. The mechanical structures, electrical works including power conditioners/inverters/charge controllers/maximum power point tracker units/distribution boards/digital meters/switch gear/storage batteries, etc. and overall workmanship of the SPV power plants/ systems must be warranted against any.
What are the O&M aspects of a grid-connected rooftop solar PV system?
Compared to most other power generating technologies, solar PV systems have very low maintenance and servicing requirements. However, suitable maintenance of a PV plant is essential to optimise energy yield and maximise the life of the system. Some of the maintenance activities typically may include but not limited to the Following: Module cleaning is required periodically (dust, bird dropping and other debris can cause decrease in power generation). Periodicity depends on local conditions like dust, birds, air pollution, etc.
Other items should be checked periodically as stated below:
Checking module connection integrity
Checking junction boxes / string combiner boxes
Inspecting mechanical integrity of mounting structures
Tightening cable connections that have loosened
Replacing blown fuses
Repairing lightning damage
Repairing equipment damaged by intruders or during module cleaning.
There is presence of monkeys in our area. Would they be damaging the RTS?
The solar modules are made up of toughened or tempered glass top and so are not easily broken due to monkeys or any falling objects. These can be broken if deliberately someone throws stones. Guarding of module surface with wire mesh is one solution for monkey menace, but not recommended because this regularly casts shadow on the modules.
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