As proud providers of solar energy solutions, the team at Barron Heating AC Electrical & Plumbing understands that local weather and seasonal shifts can have a big impact on solar energy production. If you’re considering investing in solar panels—or already have them installed—it’s important to know how our Pacific Northwest climate plays a role in solar panel efficiency year-round.
Let’s explore how each season affects solar energy generation and what you can expect from your solar system throughout the year.
Spring: A Surge in Solar Potential
Spring in Burlington brings longer daylight hours, milder temperatures, and relatively clear skies—a perfect combination for improved solar panel performance.
Unlike the hot summer months, spring temperatures remain cooler, which is ideal for photovoltaic (PV) panel efficiency. Solar panels actually operate more effectively in cooler conditions, as high heat can reduce output. With ample sunshine and optimal temperatures, spring often kicks off the most productive solar season of the year.
Additionally, rainfall during the spring can help wash away any lingering debris or dust on panels that may have accumulated over the winter.
Takeaway: Spring is a high-performance season for solar energy in Burlington—longer days and cooler temps mean more energy production.
Summer: High Sunlight with a Heat Tradeoff
Summertime in Skagit County offers the longest days and the most direct sunlight of the year, leading many to assume that summer is the most efficient season for solar power. While this is partly true due to the extended daylight hours, it’s important to note that high temperatures can slightly reduce panel efficiency.
Solar panels work best at around 77°F. Once temperatures rise significantly above this point, energy output can begin to decline—even if the sun is shining bright.
That said, the sheer volume of sunlight in the summer still leads to a net gain in energy production. And with air conditioning systems running more frequently during hot days, this solar output can help offset higher energy usage.
Takeaway: Summer offers long days and high output, though extreme heat can slightly impact efficiency.
Fall: Gradual Decline with Steady Output
As the leaves begin to turn and days grow shorter, solar energy production in Burlington naturally begins to taper off. However, fall can still be a productive season for solar panels—especially in early fall when the sun angle remains relatively strong and temperatures are still moderate.
With the summer haze clearing and skies remaining mostly open through September and October, your system can still produce consistent power. Plus, cool temperatures continue to support better panel performance compared to scorching summer heat.
Takeaway: While solar production gradually decreases, fall still offers solid energy generation, especially in early months.
Winter: Lower Output, But Not a Dealbreaker
Winter presents the most challenges for solar power in Burlington. Shorter daylight hours, cloudier skies, and the potential for snow all contribute to decreased energy production.
However, it’s a myth that solar panels stop working in the winter. In fact, panels continue to produce energy even on overcast days—just at lower levels. And since solar panels are installed at an angle, snow typically slides off or melts quickly, especially as panels absorb heat from the sun.
Cold temperatures also benefit solar efficiency, so any sunshine during winter is still valuable.
Takeaway: Winter production is reduced, but your solar system will continue to generate energy throughout the season.
Ready to Go Solar?
No matter the season, solar energy is a smart and sustainable investment for homeowners. With proper design, maintenance, and understanding of how weather impacts performance, you can enjoy reliable energy savings all year long.
If you’re ready to harness the power of the sun, our Barron team is here to help. We’re your trusted experts for solar panel installation, HVAC service, electrical upgrades, and plumbing solutions—all under one roof.
Our team of Home Performance Experts has served the I-5 corridor from Blaine to Marysville, Oak Harbor to Concrete, and the San Juan Islands since 1972 with a mission of Improving Lives™. We look forward to serving you too! Contact us today for solar energy service.