Let’s face it—solar installations aren’t exactly known for their thrilling engineering choices. But when ExtenSolar introduced its concrete foundation rooftop mounting system, even the most skeptical contractors sat up and took notice. Why? Because this isn’t your grandpa’s ballast-and-hope approach. We’re talking about a system that combines military-grade stability with the simplicity of LEGO blocks. Imagine building a solar array that laughs in the face of 120 mph winds. That’s ExtenSolar’s party tric
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Let’s face it—solar installations aren’t exactly known for their thrilling engineering choices. But when ExtenSolar introduced its concrete foundation rooftop mounting system, even the most skeptical contractors sat up and took notice. Why? Because this isn’t your grandpa’s ballast-and-hope approach. We’re talking about a system that combines military-grade stability with the simplicity of LEGO blocks. Imagine building a solar array that laughs in the face of 120 mph winds. That’s ExtenSolar’s party trick.
Remember when Tesla’s Powerwall made battery walls cool? ExtenSolar is doing that for mounting—but with actual walls (of concrete). Their patented interlocking system uses 25% less material than standard ground mounts while achieving twice the load capacity. How? By borrowing from bridge-building tech. The key is the shear key design that distributes weight like a honeycomb structure.
When Walmart needed to retrofit 12 stores with solar in Tornado Alley, they faced a nightmare: existing ballast systems kept failing wind uplift tests. ExtenSolar’s solution? Pre-cast concrete modules with aerodynamic baffles. The result? A 22% reduction in installation time and zero issues during last year’s storm season. Their project manager joked, “The only thing flying off our roofs now are seagulls.”
The industry’s buzzing about two innovations ExtenSolar’s baked into their system:
Thinking about switching? Here’s a quick cheat sheet:
“But concrete’s too heavy!” cry the skeptics. Let’s math this out: ExtenSolar’s system spreads 150 lbs/sqft across the roof structure—less concentrated than a Christmas party crowd around the snack table. And because the pads double as hail shields, they actually protect the roof membrane. Clever, right?
A crew in Arizona learned the hard way: always check for hidden roof drains before placing concrete pads. Their “floating” solar array turned into an unintended water feature during monsoon season. Moral of the story? Use ExtenSolar’s laser mapping app—it’s cheaper than snorkeling gear.
Rumor has it ExtenSolar’s working on phase-change concrete that stiffens during high winds and softens in normal conditions. Think of it as a shock absorber for your solar array. And for those worried about aesthetics? The latest models come in terracotta and slate finishes that blend with roofing materials. Solar has never looked this incognito.
San Diego installer Maria Gutierrez puts it bluntly: “With ExtenSolar’s system, I spend less time arguing with inspectors and more time fishing. Last permit review took 15 minutes—the inspector just nodded and said ‘Looks bombproof.’ Best compliment I’ve ever gotten.”
Picture this: a 1:20 scale model solar array in a wind tunnel. On one side—traditional ballast blocks wearing little sweatbands. On the other—ExtenSolar’s concrete pads doing yoga. At 90 mph simulated winds, the ballast system starts sliding like a teenager on a buttered gym floor. The concrete? It’s basically meditating. Sometimes, heavy metal wins.

Solar panel mounts and racks are equipment that secures solar panels in place. Mounting allows the panels to be adjusted for optimal tilt, which can be based on latitude, seasons, or even time of day — to ensure maximum solar energy production. The most common locations for mounting are on the roof, using solar. . Solar panel racking equipment is built with 3 main components: 1. Roof attachments 2. Module clamps 3. Mounting rails Each tool plays a key role in how the structure supports your panels, to. . Tackling a solar panel project DIY-style can make things a bit more complicated. Most of the time, you cannot go out and buy a fully-constructed solar panel mount system. You need to buy each individual part separately to then. . Including racking and mounting, an average 6kW solar system would cost about $18,000 given the US average solar panel cost of about $3.00 per watt as of January 2023. After. . A problem with rooftop solar is that it’s heavily constrained by the characteristics of your roof. Homeowners who install ground-mounted solar. [pdf]
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