Residential Solar – Solarmate Engineering

DESIGN CONSIDERATIONS – SYSTEM’S CLARIFICATIONS

We offer three basic solar power packages

All the specified home appliances will depend entirely on the power direct from the SUN.

The power from the sun will be stored in batteries to be used by the home appliances throughout the day and night.

This system is designed as an independent electrical power supply.

Power from both the sun and from the genset and GRID are stored in the batteries.

It is required that grid or genset power be available for a specified duration of time daily for system to operate optimally.

This system is designed as a semi-independent system that is supplemented by a hybrid power supply from the national grid.

Depends entirely on power from the grid or genset to charge the batteries.

Battery power is sued to run home appliances during power outages.

This configuration is similar to the conventional UPS, but with extended run-time of up to 20 hours daily.

This system is designed to be completely dependent on the national grid and/or genset.

ADVANTAGES AND DISADVANTAGES

SYSTEM	ADVANTAGES	DISADVANTAGES
STAND ALONE	1. Complete independence from GRID or generator	1. Very high cost
HYBRID PV + GRID + GENSET	1. Average cost 2. Lower initial cost if generator is already available 3. The genset in the system can be used during extended grid outages 4. Package will still run for some hours daily even with long grid outages	1. System still depends on some hours of genset use.
BACK-UP POWER	1. Low cost 2. Effective when power from grid is predictable	1. System will completely shut-down after extended hours of grid outage