Solar energy is radiant light and heat from the sun harnessed using a range of ever-evolving technologies such as solar heating, photovoltaic’s, solar thermal energy, solar architecture and artificial photosynthesis. It is an important source of renewable energy and its technologies are broadly characterized as either passive solar or active solar depending on the way they capture and distribute solar energy or convert it into solar power.
Off-the-grid systems are designed to function without the support of remote infrastructure, such as an electrical grid.The term off-the-grid (OTG) can refer to living in a self-sufficient manner without reliance on one or more public utilities. A true off-grid house is able to operate completely independently of all traditional public utility services.
The solar hybrid inverters functions just like the solar inverter, but have bigger panels and bigger batteries to store enough charge in the batteries to be discharged after sunset. The intelligent Power Conditioning Unit, ensures maximum utilization of solar by prioritizing the control process. The panels usually bigger in size charges the battery enough to take.
During the day initially the Solar energy is utilized for charging the Battery, load will be on the Grid until battery gets charged up to 90% of its capacity, once it reaches this level, load will get transferred to the inverter, Grid will get disconnected, load will be shared with the available solar energy & battery (as solar energy will keep charging the battery.
An on-grid or grid-tie solar photovoltaic system is when your solar photovoltaic system is connected to a utility source or electrical service provider. You pay for the amount of electricity you consume to the utility provider. Grid-tie solar systems use inverters that meet the requirements of the utility and must not emit noise that can interfere with electrical devices such as reception for television and must retain acceptable levels of harmonic distortion for quality of voltage and current output waveforms. On-grid solar systems are advantageous as the electricity is utilized by the owner during the day and any surplus is supplied to the grid; some utilities pay for this surplus electricity at a higher rate known as a Feed In Tariff (FIT). During the evenings, when solar electricity is not generated, electricity is drawn from the grid avoiding the need for costly battery banks..
The Grid sharing solar PCU works without any change-over. The total load is shared by the solar MPPT and the utility during mains availability and between battery and solar power during mains power failure.
Efficiency is the most important factor in a solar system which can be defined as the conversion of the available solar power to useful electrical energy to the load. The inverter efficiency significantly improves overall efficiency but the measure of utilization of the complete power from solar is dominantly the key factor to be emphasized. The inverter efficiency is generally emphasized; however the utilization factor is seldom indicated.
Solar Home Lighting System (SHLS) harnesses the sun’s energy to light up your home and power your small appliances. With benefits that extend both to your wallet and to the environment, Solar Home Lighting System is not just a ‘brilliant’ idea; it is a ‘responsible’ one.
Providing illumination powered from the sun’s renewable energy, the solar cells in the system convert the sun’s energy directly to electricity. This electricity is stored in the battery and used for lighting whenever required.
Solar Home Lighting System, compact, portable and easily mountable, is an economical solution to all your power problems and comes in an easy-to-install.
Solar street lights are raised light sources which are powered by photovoltaic panels generally mounted on the lighting structure or integrated in the pole itself. The photovoltaic panels charge a rechargeable battery, which powers a fluorescent or LED lamp during the night.
Latest designs use wireless technology and fuzzy control theory for battery management. The street lights using this technology can operate as a network with each light having the capability of performing on or off the network.
Solar water heating (SWH) is the conversion of sunlight into renewable energy for water heating using a solar thermal collector. Solar water heating systems comprise various technologies that are used worldwide increasingly.
SWH systems are designed to deliver hot water for most of the year. However, in winter there sometimes may not be sufficient solar heat gain to deliver sufficient hot water. In this case a gas or electric booster is used to heat the water.