Module 4 of 10
Modules, inverters and balance of system
Choosing modules and inverters that work together, and the BOS items every site needs.
- 6lessons
- 62minutes
- 1,686questions in the bank
Lessons
Choosing modules: DCR vs non-DCR, ALMM, warranties and quality checks
Picking modules for Indian roofs: DCR rules, ALMM lists, BIS registration, warranty terms and the test reports that separate good modules from risky ones.
10 min readOn-grid inverters: MPPT, DC/AC ratio, efficiency, protections
What an on-grid inverter does inside, how to read its datasheet, how to match strings to its MPPT window, and which protections keep the grid safe.
11 min read, with a live calculatorHybrid and off-grid inverters: modes, backup, transfer time
How hybrid and off-grid inverters work: ports, operating modes, backup circuits, transfer time, battery voltage classes and how to size backup power.
10 min readBalance of system: DCDB, ACDB, cables, MC4, SPD, MCB, isolators
Every BOS part between modules and meter: DCDB, ACDB, solar cable, MC4 connectors, surge protection, MCBs, RCCBs and isolators, with sizing rules.
11 min read, with a live calculatorMeters and monitoring: net meter, generation meter, Wi-Fi and data loggers
How net and generation meters record energy, how to reconcile their readings with the bill, and how monitoring catches faults before customers do.
10 min readQuality and counterfeit risks: what to check on delivery
A practical delivery inspection for modules, inverters, cables, connectors, breakers and structures, with simple field tests that expose fakes and damage.
10 min read