Ask for line items
Panels, inverter, battery, structure, cables, protection, labor, and filing charges should be visible separately.
Survey before final sizing
Roof shade, structure, wiring route, and real load profile can change the correct system size.
Keep written proof
Save model numbers, warranty cards, serials, approval documents, payment terms, and support commitments.
Quote and price cautions
Compare the same scope
A cheaper quote may exclude earthing, surge protection, DC breakers, AC breakers, proper structure, monitoring, green-meter filing, transport, or after-sales support. Ask for line items instead of only a total package price.
Confirm price validity
Ask how long the quoted price is valid and whether it depends on exchange rate, panel stock, inverter model, battery brand, net-billing paperwork, or utility fees.
Check exact models
Panel wattage, inverter model, warranty channel, battery chemistry, structure gauge, cable size, and protection brands matter. Similar kW sizes can have very different quality levels.
Design and installation cautions
Survey the roof properly
Shade from mumty, water tanks, trees, walls, nearby buildings, and wires can reduce output. Confirm roof strength, panel layout, tilt, drainage, access for cleaning, and cable route before installation.
Do not ignore protection gear
DC isolation, surge protection, AC protection, proper earthing, breakers, cable sizing, labels, and inverter ventilation are not optional details. Poor protection can create safety and equipment risks.
Verify utility paperwork
DISCO and K-Electric approval timelines, fees, testing, bidirectional meter availability, net billing rules, and documentation can change. Confirm the installer scope and who is responsible for each step.
Battery and backup cautions
Backup is not unlimited
Battery runtime depends on usable battery capacity, load, inverter settings, depth of discharge, temperature, age, and charging behavior. Heavy AC or motor loads can drain batteries quickly.
Place batteries safely
Battery rooms need ventilation, temperature control, clean wiring, secure mounting, and correct protection. Keep batteries away from heat, water exposure, and unqualified handling.
Separate savings from backup
A battery can improve backup and self-consumption, but it also raises upfront cost. Compare payback and backup needs separately before buying a hybrid system.
Website usage cautions
Calculator values are planning estimates only. Before spending money, confirm your bill category, sanctioned load, daytime usage, roof condition, current tariff, export credit, installer quote, bank terms, and all warranty documents.