In Off Grid Solar System we store produced electricity in storage battery. Major drawback of off grid solar system is that we can’t store excess amount of electricity. Solar net metering is nothing but the upgraded version of off grid solar system. Which simply means that we install Solar Power Pack system on our terrace, generate our own electricity & feed into state electricity board and reduce our electricity bill by the number of units we export.
Read following article which explains how solar net metering. https://storify.com/renewgreensolar/on-grid-solar-system-to-create-your-own-electricit