# What to do when solar panel production seems low Summary: A safety-first checklist for checking a lower solar-production alert from the ground and knowing when to call your installer, utility, or an electrician. Publisher: HomeFAQ Published: 2026-10-01 Updated: 2026-10-01 Canonical: https://homefaq.com/solar/what-to-do-when-solar-panel-production-seems-low/ Tags: solar production low, solar monitoring alert, solar panel troubleshooting If your solar app shows less production than you expected, start with a safe comparison: check the date, weather, season, and the exact alert before treating it as an equipment failure. A cloudy day, shorter winter daylight, smoke or haze, and shade can change production. Do **not** climb onto the roof, touch panels or wiring, open an inverter or electrical panel, reset breakers, or try electrical troubleshooting. If the monitoring system shows a fault, a shutdown, or a condition you cannot explain from safe observations, contact the installer or equipment manufacturer using the service path in your documents. This guide is for a homeowner whose solar monitoring looks lower than usual and needs a safe next step. The decision rule is simple: compare a possible change against weather and normal seasonal conditions from the ground; escalate any equipment alert, damaged equipment, or sudden unexplained change to the responsible professional. Your next action is to save the alert and recent production history, then make one informed support call rather than experimenting with equipment. ## Start with the monitoring alert, not the roof Write down what the app or inverter display says, including the date, time, alert wording, and whether it reports a communication issue, reduced production, or a fault. Take a screenshot if the app permits it. Check whether the app is showing live power, daily energy, monthly energy, or a comparison with a forecast; those are different measures. A missing data connection can make an app look incomplete even when the system is operating, while an equipment fault needs the installer or manufacturer to interpret the message. Do not remove covers, press reset controls you do not understand, or follow informal online instructions for your model. Solar equipment and the home electrical system can remain energized in situations that are not obvious to a homeowner. The U.S. Department of Energy (DOE) advises using qualified solar professionals for installation and system work. ## Compare like with like Before deciding output is low, compare the same time period with a similar period, not one sunny day with a cloudy day. Check safe, ordinary context first: - recent cloud cover, storms, smoke, haze, snow, or unusual dust; - the season and daylight length; and - a change in shade from leaves, new construction, or another object visible from the ground. Panels produce electricity only when sunlight reaches them, and the amount varies with local weather, site conditions, and system design. The National Renewable Energy Laboratory’s PVWatts tool illustrates how location, system settings, and other assumptions affect modeled output, but it is not a diagnosis, a production guarantee, or a replacement for a system-specific assessment. Do not spray panels, scrape snow, trim branches from a ladder, or attempt cleaning on a roof. If debris, a broken panel, loose-looking equipment, a damaged conduit, or a fallen branch is visible from a safe ground-level location, keep people away from the area and call the installer or an appropriate qualified professional. If there is fire, smoke, a burning smell, sparking, exposed wiring, or a downed electrical line, move away and call emergency services and the utility; do not approach the equipment. ## Check for notices outside the solar equipment Look for messages from your utility or installer about planned outages, meter work, interconnection status, monitoring-account changes, or a system shutdown after a grid event. A utility notice may explain a change in what you see in monitoring, but it does not authorize you to alter equipment. If your system was recently installed or changed, ask the installer whether it has received permission to operate and whether all monitoring components are enrolled correctly. If a utility outage occurred, follow the instructions provided by the utility and installer. Do not assume panels will power the home during an outage. A grid-tied system may shut down for safety; backup behavior depends on the specific equipment and design. For that distinction, read [Solar panels vs. solar plus battery storage](https://homefaq.com/solar/solar-panels-vs-solar-plus-battery-storage/). ## Know whom to call Contact the **installer** first for a new or unexplained monitoring alert, a production change that remains after a fair weather/season comparison, or a question about the system design, warranty, or service process. Contact the **equipment manufacturer** through its official support channel when the installer directs you to it or when your warranty paperwork identifies a manufacturer support path. Provide your screenshots, dates, and any safely observed conditions; do not guess at a cause. Contact the **utility** for a meter, outage, interconnection, or utility notice. Contact a **qualified electrician** when the installer or utility identifies a home electrical issue outside the solar provider’s scope. Ask who owns the next step before scheduling work so the diagnosis, warranty, and utility coordination are clear. ## Keep a short record for the service call Save the production screenshots, alert text, dates, weather notes, utility notices, and any photos taken from the ground. Include the system’s installer, equipment models from your paperwork, and recent changes such as roof work or nearby tree growth. This record helps the professional compare the system’s expected operation with the actual alert without asking you to take unsafe actions. For a broader scope checklist before a service visit or installation discussion, use [How to compare solar installation proposals](https://homefaq.com/solar/how-to-compare-solar-installation-proposals/). A professional can determine whether the issue is weather, monitoring, equipment, utility coordination, or a condition that needs a separate trade assessment. ## Sources - [U.S. Department of Energy, Solar Energy Basics](https://www.energy.gov/eere/solar/solar-energy-basics) (accessed October 1, 2026). - [U.S. Department of Energy, Homeowner’s Guide to Going Solar](https://www.energy.gov/eere/solar/homeowners-guide-going-solar) (accessed October 1, 2026). - [National Renewable Energy Laboratory, PVWatts Calculator](https://pvwatts.nrel.gov/) (accessed October 1, 2026).