The technical work.
WHAT INSTALLATION INVOLVES
Mounting the array Running cabling Installing protection Installing and connecting batteries Installing the inverter Connecting to the load Commissioning and testing
WHAT MOUNTING REQUIRES
Structure adequate for wind loading Fixings appropriate to the roof or ground No compromise to roof waterproofing Orientation and tilt as designed Access for cleaning and maintenance
WHY WIND LOADING MATTERS
Arrays lifted by wind cause serious damage and injury.
WHAT ROOF PENETRATIONS REQUIRE
Proper sealing.
WHY
Leaks appearing months later are attributed to you, correctly.
WHAT CABLING REQUIRES
Correct sizing for current and distance Protection from sunlight and physical damage Correct routing and securing Correct polarity
WHY CABLE SIZING MATTERS
Undersized cable loses energy and creates fire risk.
WHAT PROTECTION REQUIRES
Appropriate devices on each circuit Isolation that actually isolates Earthing Surge protection, where warranted
WHY ISOLATION MATTERS
Maintenance and emergency response require the ability to make the system safe.
WHAT BATTERIES REQUIRE
Ventilation, depending on chemistry Secure mounting Protection from heat Correct interconnection Appropriate enclosure
WHY VENTILATION FOR SOME CHEMISTRIES
They produce gas that accumulates and ignites.
WHAT TO NEVER DO
Install batteries in unventilated living spaces where the chemistry requires ventilation Undersize protection to reduce cost Leave conductors exposed
WHAT TO TEST BEFORE HANDOVER
Every circuit, under load.
