As a quick check, you can confirm that your PV system is operational by looking for any amount of power that was received back by the utility on your latest electric bill. Excess PV export to the utility is shown under the Received (REC) column. This is a good indication that your PV system is operational.
Note: Your Enphase Enlighten solar monitor must be connected to the internet and reporting data.
You can get an indication of system performance by simply comparing total system production totals for the same calendar month against previous years. Production totals may still from year to year even for the same month due to seasonal weather patterns, but they should be relatively close. For example, a rainy February this year may yield relatively low energy production, while a sunny February next year may yield much higher energy production.
The chart below illustrates the seasonal changes that causes your solar PV system to produce noticeably less energy in winter months, while producing more energy in summer months. It is important to compare the same calendar month when performing a production comparison.
Note: System production totals may vary drastically if the Enphase Envoy solar monitor was not online and reporting data during the reporting dates selected. This does not necessarily mean that the system was not producing power, it just means that the production data may have been lost and not available for accurate comparison.
There are 2 versions of the Enphase Enlighten solar monitoring application. Enlighten Manager and MyEnlighten. The procedures for each version are outlined below.
Compare similar month productions. Notice the variation between years due to seasonal weather. This example shows an acceptable production comparison.
MyEnlighten requires the user to generate and compare separate reports of the same months over different years. As of this writing, there was no Multi Year Energy Report available.
Report #1: Select the last full calendar month from current year. Be aware to pick a complete month for comparison. You may need to select the previous month.
Report #2: Select the same full calendar month from prior year.
Now compare the monthly production totals. Notice the variation between years due to seasonal weather. This example shows an acceptable production comparison.