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Frequently Asked Questions
Most frequent questions and answers
What IS PV?
PV is short for photovoltaics (photo=light, voltaics=electricity). PV is a semiconductor-based technology used to convert light energy into direct current (DC) electricity, using no moving parts, consuming no conventional fuels, and creating no pollution.
What are the components of a PV system?
A PV system is made up of different components. These include PV modules (groups of PV cells), which are commonly called PV solar panels; one or more batteries; a charge regulator or controller for a stand-alone system; an inverter for a utility-grid-connected system and when alternating current (AC) rather than direct current (DC) is required; cables; and mounting hardware or a framework.
How long will a solar PV system last?
A PV system that is designed, installed, and maintained well will operate for more than 20 years. The basic PV module (interconnected, enclosed panel of PV cells) has no moving parts and can last more than 25 years. The best way to ensure and extend the life and effectiveness of your PV system is by having it installed and maintained properly. Experience has shown that most problems occur because of poor or shoddy system design, installation and maintenance.
Can I use PV to power my home?
PV can be used to power your entire home’s electrical systems, including lights, cooling systems, and appliances. PV systems today can be blended easily into both typical and atypical homes. The most common practice is to mount modules onto a south-facing roof or wall. For an additional aesthetic appeal, some modules resemble traditional roof shingles.
Can I use PV to power my business?
PV systems can be blended into virtually every conceivable structure for commercial buildings. You will find PV being used outdoors for security lighting as well as in structures that serve as covers for parking lots and bus shelters, car ports; generating power at the same time.
How big solar do I need?
The size of solar system you need depends on several factors such as how much electricity you need (load profile) and how many hours of the day (run time) you want it to supply electricity, the size of roof/ground space available and how much you’re willing to invest. Furthermore, your consideration on whether you want the system to supply your complete energy usage or to supplant a portion of your higher cost energy usage is also a major point of consideration.
What are the differences between a Roof-mounted and ground-mounted PV system?
Roof-mounted tends to be less expensive as they require no support structures and are most often not visible to passersby. On the other hand, ground-mounted systems can usually be oriented and tilted to optimize production. The choice of which mounting type you need also depend on the kind of structures/obstructions you have in your vicinity.
How is electricity saved for use at night?
During Daytime Solar energy is stored in battery-bank, which in turn is used at night. Top of Form