Stay Connected, On-Grid Solar
You want to get the most out of your solar pv system. Connecting your solar system to your local utility company is the way to do it. Though there are some situations, such as remotely-located buildings that are suited to off-grid systems, today most commercial solar systems are hooked into the local utility system.
On vs. Off Grid
In a grid-tied system, your building has two energy sources – your solar array and the utility grid. Your building will first use the solar electricity produced by the solar system and when extra is needed it will get electricity from the local grid, so you always have energy (except during power outages). In the event that your solar system produces more electricity than you need, your solar inverter will funnel the excess into the local grid. These systems can be designed with battery back-ups, though this is uncommon.
An off-grid system is one that relies entirely on battery for storage of the energy produced by the solar array and limits the building to the amount of electricity produced by the system. When the batteries are entirely drained there is no utility back-up system.
- The utility is your back up: If weather minimally diminishes the electric production of your solar system due to rain, fog, or snow, your utility will make up the difference.
- Reduce your electric bill: You can take advantage of net metering provided through your local utility for an additional reduction in electricity costs.
Net metering is another key benefit of grid-tied solar systems. In net metering programs, when your solar system produces more electricity than your facility can immediately make use of, the excess energy gets fed back into your local utility grid, effectively causing your utility meter to spin backward! This has two benefits for your solar building:
- When the solar system on your building produces more energy than your building requires, you get paid! Most utilities will credit back to you the power fed into the local grid, which will further reduce your electricity bill.
- Solar systems produce the most energy during peak hours, in the middle of the day. During these hours the per-kWh electricity rates are highest. Therefore the credit you receive from your utility company will be calculated at the higher electricity price, which means you’ll receive an even higher discount on your utility bill.
This process of net metering lets you buy electricity at a low price and sell it at a high price!
Greenzu Does On-Grid Solar
- You pay Greenzu for the solar energy your building uses, and
- You pay the utility company for any electricity drawn from their grid when you need more than your solar system can provide.
Though you might think your electricity costs will go up with two bills, the good news is that the sum of Greenzu’s and your utility company’s bills will be 15% to 20% lower than what you would have been paying with electricity only from your local utility!
Greenzu Takes Care of All The Paperwork!
As a Greenzu PPA client, we’ll set up all of the systems necessary for you to take advantage of net metering with your local utility so you won’t have to worry about the time-consuming paperwork and red tape involved. It’s a hassle-free set-up for you that pays dividends in multiple ways! Find out about other ways a Greenzu PPA will save you money.
Net Metering Laws Vary By State
Net metering in California is different than in other states. It is important to learn about local policies. Below are additional resources.
- DSIRE USA: California’s Net Metering Incentive Program
- Go Solar California: Basics of Net Metering, How it Works, Pricing Options, and Consumer Solar Contact Information
- Department of Energy: Renewable energy tax rebates and tax credits by State