Every February, without fail, my phone and inbox light up with the same question:
“Why did I get an electric bill? I have solar.”
If this is happening to you right now, there is likely a simple explanation. Nothing is wrong with your system. Nothing is broken. And you are not alone.
This happens every single year, and it is completely predictable once you understand how net metering actually works in Florida and how solar production varies throughout the year.
Net Metering Quietly Reset in January
Most homeowners never notice the exact moment their net metering credits reset, but it happens automatically every year with your December billing cycle.
Throughout the year, your solar system builds up a reserve of excess energy production. This reserve acts like a bank account. During the sunny months, you deposit energy. During weaker months, you withdraw it.
But once the December billing period closes, the utility clears the account. The balance goes back to zero.
On the January billing cycle, everyone starts over. This applies to both FPL and LCEC customers.
Even if your system produced a large surplus in October, November, and December, those credits do not carry forward into the new year. This annual reset is a standard feature of Florida’s net metering rules.
January Is One of the Weakest Production Months of the Year
January has some of the lowest solar production of the entire year in Southwest Florida. This surprises people, because our winters are mild compared to the rest of the country. But solar production depends on sun angle and day length, not air temperature (at least not primarily).
Winter production is significantly lower due to geometry, not weather.
In January:
- The sun is lower in the sky
- Days are shorter
- The angle of sunlight is less direct
- Morning and evening production are reduced
Even on clear days, total daily production is significantly lower than in March through October.
Many systems produce 25 to 40 percent less energy in January compared to peak months.
Your Reserve Is Gone Right When Production Is Weakest
This is the key point that causes confusion.
You enter January with zero reserve. At the same time, production is near its annual minimum.
That combination almost always results in a temporary shortfall.
Even perfectly sized systems can produce less energy than the home consumes during this period.
This seasonal variation is completely normal and is discussed further in What to Expect After Installing Solar Panels.
Heating Can Dramatically Increase Energy Usage
While heating is not as common in Southwest Florida as it is in colder climates, many homes still use electric heat strips in their air handlers.
These heat strips are extremely energy intensive.
They typically draw between 5,000 and 20,000 watts while operating.
For comparison, most solar systems produce between 5,000 and 15,000 watts under ideal conditions.
In other words, your heating system alone can consume as much power as your entire solar system produces.
Even occasional use during cold mornings can significantly increase your monthly consumption.
Pools Are a Major Contributor
Pools operate year round in Southwest Florida, and they are a continuous energy load.
Pool pumps often run 8 to 12 hours per day, every day of the year.
When temperatures drop, pool heaters add an enormous additional load.
Electric pool heaters and heat pumps can consume between 5,000 and 7,000 watts while operating.
This is one of the reasons why accurately sizing your solar system based on annual usage is so important.
This Happens Even in Homes Without Heating
Some homeowners assume that because they do not use electric heating, they should never see a winter bill.
But even without heating, January production is still significantly reduced.
Meanwhile, pool pumps, appliances, lighting, and normal household usage continue unchanged.
Without any reserve credits carried forward, even modest differences between production and consumption can result in a small bill.
This Is Temporary and Completely Normal
The important thing to understand is that this is a short term seasonal effect.
As we move into February, March, and April, solar production increases rapidly.
Longer days and higher sun angles allow systems to produce significantly more energy.
Most homeowners begin rebuilding their reserve credits during this period.
You can track this yourself using your monitoring platform, as explained in How to Monitor Your Solar System Performance.
Your System Is Still Working Exactly as Designed
Receiving a bill in February does not mean your system is undersized. It does not mean anything is broken. It does not mean solar is not working.
It simply reflects how net metering cycles align with seasonal production patterns.
Over the course of the full year, properly designed systems still offset the vast majority of a home’s annual energy usage.
The Big Picture Still Strongly Favors Solar
Solar is designed to offset your annual energy usage, not eliminate every single monthly bill.
The goal is long term reduction in total utility costs, protection against rising electric rates, and increased energy independence.
For most homeowners in Southwest Florida, solar systems continue delivering exactly what they were designed to do.
If you have questions about your system’s performance, we are always happy to review your production and consumption data.
But in most cases, the explanation is simple.
Here we go again. January reset. Lower sun angle. Temporary shortfall. Then back to normal.
This cycle repeats every year, and your system will continue doing exactly what it was designed to do.
