1) PV grid-connected PV systems to put into power,Without Battery Energy Storage,Directly through the grid-connected inverter,Put into power grid.tovoltaic power generation is the development of tovoltaic power, and represent the most attractive use of energy in the 21st century technology <br /><br />2) Stand-alone systems are independent from the utility grid,avoiding the possibility of losing power when the grid goes down.Electricity from stand-alone systems are used on site,such as an RV or cabin.Power that is generated can be stored in batteries and used at night or on sunless days. A generator may also be used for back-up.For PV applications,the size of a stand-alone system is usually up to 50kW. <br /><br />We also can manufacture your customized specification according to the detailed requirement, for more, please our sales team and engineering dept. <br /><br />We are a leading manufacturer of renewable energy and energy-saving products, for more details, please refer to our on-)com<br/><h2>Product Feature</h2><br/>100% solar powered without any electricity grid<br/><h2>Application / Models</h2><br/>House or Commercial projects Other Information We welcome enquiries from clients in all market sectors and in particular those OEM, ODM orders and technology co-operations. We are always committed to provide customers with the highest quality products and perfect service. Please us without any hesitation if you are interested in any of our products.