Commercial Solar San Diego

Commercial solar usually comes down to one thing. Cutting operating costs without creating new headaches. Commercial solar in San Diego works best when the roof, electrical system, and long-term use of the building are all planned together.

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Why businesses install commercial solar in San Diego

Electric rates keep climbing, and commercial buildings feel it fast. Warehouses, offices, and retail spaces use power all day, especially during peak rate hours. Solar helps offset that load and smooth out monthly costs.

At McKay Roofing and Solar, we see businesses go solar to gain predictability. Owners want fewer surprises from the utility and more control over long-term expenses, especially in energy-heavy buildings.

What commercial solar installation includes

Commercial solar installation starts with evaluating the building, roof structure, electrical capacity, and how power is actually used during the day. Flat and low-slope roofs are common, and layout matters more than people expect.

The install includes panel placement, inverter setup, electrical integration, and proper mounting that won’t compromise the roof. Commercial solar needs to meet current solar installation standards while accounting for roof movement, drainage, and future access.

How long commercial solar projects take

Commercial solar timelines vary more than residential. Smaller systems may take a few days once permits are in place, while larger installations take longer depending on building size and access.

If roofing work is needed before solar goes on, that’s handled first through our commercial roofing process. Planning solar and roofing together keeps projects moving instead of stalling between contractors.

Commercial solar and roof condition

The roof always comes first. Installing solar on a roof near the end of its life leads to removals sooner than expected. That’s expensive and avoidable.

We inspect the roof before solar design begins. If roof repair or roof replacement is needed, it’s addressed upfront so solar doesn’t have to be touched again for years.

Common commercial solar issues we see

A lot of problems come from rushed installs. Poor mounting, skipped flashing, or systems placed without thinking about drainage or future roof access. Those mistakes don’t show up right away.

We’re often called to fix systems installed without roofing coordination. Commercial solar works best when it’s treated as part of the building, not just equipment added on top.

Commercial solar vs residential systems

Commercial solar systems are built differently. Larger arrays, different load profiles, and stricter code requirements. They also see more foot traffic and equipment exposure.

That’s why commercial solar needs a different approach than residential. The system has to handle daily use, maintenance access, and long-term wear without becoming a liability.