Net metering is one of the biggest reasons home solar saves you money, but it is also one of the most misunderstood. In plain terms, net metering is the billing arrangement that gives you credit for the extra electricity your solar panels send back to the grid. Here is how it works, why it matters, and how the rules differ depending on where you live.
What Net Metering Actually Is
Your solar panels make the most power in the middle of the day — often more than your home is using right then. Instead of wasting that surplus, your meter sends it to the grid and your utility credits your account for it. Later, when your panels aren’t producing — at night or on cloudy days — you draw power back from the grid and those credits offset the cost. The grid effectively acts like a giant battery you bank energy in.
Why Net Metering Saves You Money
Without net metering, you would only save on the power you use the instant it’s produced. With it, every kilowatt-hour your system makes has value — whether you use it immediately or send it to the grid for credit. That’s what lets a well-designed system offset the large majority of your bill, turning an expense that only rises into a predictable, much smaller one.
The Rules Depend on Your Utility
This is the key thing most homeowners don’t realize: net metering isn’t one national policy. It varies by state and even by utility, and the details make a real difference to your savings:
- New Mexico — utilities credit your surplus at the full retail rate, and credits roll over month to month, so summer surpluses help cover winter.
- Colorado Springs — Colorado Springs Utilities offers 1:1 net metering with credits that roll over month to month (and statewide, Colorado requires utilities to credit excess solar).
- El Paso — El Paso Electric credits exported solar at a lower avoided-cost rate rather than full retail, which is exactly why sizing your system to your own usage — and sometimes adding a battery — matters more there.
Because the rules shape your savings, a good installer designs your system around your specific utility’s net-metering policy.
How to Get the Most From Net Metering
Two things help you capture the full value of net metering. First, size your system correctly — matched to your actual annual usage, not oversized. Second, in areas where exported power earns less than retail, consider pairing solar with a home battery so you use more of your own energy instead of selling it back cheaply. Your installer should model both for your home.
What Happens to Your Credits Over Time?
A common net metering question is what happens to credits you don’t use. In most month-to-month rollover programs, surplus credits carry forward and quietly offset future bills — so the extra power your panels make on long summer days isn’t lost; it’s waiting for you in the darker winter months. Some utilities also do an annual “true-up,” where any leftover credits at the end of the year are either rolled forward or cashed out at a set rate, depending on local rules. The practical takeaway is simple: with good net metering and a properly sized system, very little of your solar production goes to waste. That’s a big part of why solar delivers predictable, long-term savings instead of the ever-rising bills you get from buying all your power from the utility. Your installer can show you exactly how your utility handles credits before you commit.
Net Metering in Your Area
The best way to understand how net metering will work for you is to talk to a local team that knows your utility’s rules. Sunforce Solar designs systems across New Mexico, Texas, and Colorado with each area’s policy in mind. Learn more about going solar in New Mexico or Colorado Springs, or contact us for a free, no-obligation quote.
