PHOTOVOLTIAC ENERGY SYSTEMS
Governing Principals Of Photovoltaic Energy Systems according to www.dgsolarpower.com:
- Solar power is created when solar energy is converted into electrical energy.
- Solar cells are created through the use of semiconductor materials that have electronic characteristics to achieve a PV conversion device.
Types Of Solar Photovoltaic Energy Systems
- Grid-tied Solar Photovoltaic Energy Systems as explained bysolarpowerworldonline.com is a basic solar energy system that requires basic installation but does not have a battery backup or storage of any kind. This type of system is perfect for consumers who are already on a grid and want to add solar energy to their homes or businesses. These systems are sometimes eligible for state and federal incentives that help pay for them; they are cost effective, and relatively simple to design due to having few components. Downsides to this type of system are that when there is a power outage the system goes out too and the consumer has no control as to when the power from the system is used.
- Grid-Tied Solar Photovoltaic Energy Systems With Battery Back-Up as explained bysolarpowerworldonline.comis a grid-tied system with battery backup also known as a grid-hybrid system. This type of system is good for consumers who are already on a grid but want a battery back-up due to unpredictable power outages within their service areas. These systems are sometimes eligible for state and federal incentives, can lower the consumer’s utility bills, will provide power during an outage, and can store energy for use during an emergency. It is also possible to use this system during peak usage times. The disadvantages to these systems are that they are more expensive and less efficient than a simple grid-tied solar photovoltaic energy system that does not have a battery back-up, a charge controller is required to protect the batteries, a sub panel is required to contain the important loads that the consumer wishes to back-up, and when grid power is down important loads are isolated into a back-up sub panel.
Off-grid Photovoltaic Energy Systems as explained bywww.solarpowerworldonline.comis an excellent choice for consumers who are unable to easily connect to a grid. This type of system can assist the consumer with becoming energy self-sufficient and can provide power to remote locations that are not near a grid. It can possibly eliminate the consumer’s charges for his energy use due to having fixed energy costs, are usually modular, and have the ability to increase the consumer’s capacity as his energy needs increase; therefore, the consumer can start with a small economical system and add onto it over time. The disadvantages to this type of system is that even on a small scale it requires more components causing the system to be more expensive, the system must be designed to cover more than 100% of the consumer’s energy loads, and it may not qualify for the same incentives as the other two photovoltaic energy systems.