.:SOLAR BASICS

A basic solar system consists of the photovoltaic modules (PV panels) and a power inverter. The PV panels produce DC power and the inverter converts DC into AC power. If there is excess production, the power is fed back to the electric grid causing your meter from the utility company to register a credit.

The technology is considered mature having started with the space program in the early 50’s. There are no moving parts and maintenance is truly minimal. The manufacturers believe in product longevity and give long warranties. Standard warranties range from 20-25 years for PV panels. Inverters are covered for 5 years under commercial use and 10 years for residential use.

.:NET METERING

Almost all solar systems will be grid (utility) connected. Grid connected systems obtain power through both the PV system and the electric company. When the PV system does not produce enough power, power is obtained seamlessly through the grid. The addition of batteries to a grid connected system does not change this.

When the PV system produces an abundance of electricity, power will be fed back into the grid. Excess production will actually cause the power meter reading to go backwards! An example is when no one is at home during the day and power is continually being generated. The electric company must credit you for power being fed back into the grid.

In order to properly (and legally) get credit for power produced, a Net Metering agreement needs to be in place between you and the power company. Hawaii Net Metering laws currently allow for a maximum system size of 50 Kilowatts (KW) per system.

.:USEFUL LINKS

.:FREQUENTLY ASKED QUESTIONS (FAQ)

1. When there is a power outage will I have power?

2. What kind of maintenance is required?

3. Are there any parts that need to be replaced regularly and when?

4. What is the largest system size I can get?

5. How long does the whole process take?