On Grid Solar Power:

On-grid means your solar system is tied to your local utility’s GRID. This is what most residential homes will use because you are covered if your solar system under or over-produces in regard to your varying energy needs. All this means for you is that your utility system acts as your battery space. So if you are creating more energy than you need, it will get sent back to the utility company and they will add credits to your account. If you are using more energy than you are producing, the utility company will draw from those credits.

In short, on-grid means you are never without power. And because of this, your system is less complex and therefore has lower maintenance costs. On-grid solar can be less expensive upfront too because you don’t need batteries as backup for when your system is not generating power.