Get familiarised with the type of SPV installation that suits your home and all your energy needs.
PV-DIRECT systems are the simplest, consisting of a PV module or modules connected directly to a load.The PV DIRECT mode operates without the aid of a battery or an inverter, and hence works only during daytime..But the overall cost of the system and its low maintenance makes it affordable to common man when compared to PV STORAGE or PV CONNECT systems.Since there is no electrical energy storage (batteries) in direct- coupled systems, the load only operates during sunlight hours, making these designs suitable for common applications such as ventilation fans, water pumps, and small circulation pumps.
PV-STORAGE systems are self-contained and uses batteries to store and release electricity when the Solar PV Panels aren’t active such as at night or blackouts..The array of solar panels must be large enough to power all energy needs at the site and recharge the batteries at the same time.A charge controller prevents overcharging of batteries and protects against deeply discharging of batteries.These systems usually have an inverter, which converts the DC electricity generated by the PV modules and stored in the batteries to conventional AC electricity so that common appliances may be used.
PV-CONNECT systems offer the potential to make a profit on the energy you generate, while significantly reducing your energy bills.The grid systems supply power to your home and use the utility power as backup.If more power is produced than it is being consumed, the surplus is fed into the mains power grid.Compared to PV-STORAGE systems, PV- CONNECT systems are simpler, more cost-effective and environment friendly,and require the least maintenance.These systems usually have one major electronic component-the battery less inverter, which converts the PV output to usable electricity.
“Most new systems installed in the developed world are battery less grid-tied systems.Whether to have backup or not is a practical and personal decision, based on the number and duration of outages in your area and your personal preferences and needs.How you use solar electricity depends on your application and your personal choice.One of the there configurations above will best serve your needs,allowing you to use the solar energy that comes up every morning.”