Solar Carports Grow 12% Yearly, Foundations Costly

Solar carports are booming: 12% annual growth worldwide

Solar carports are projected to expand at about 12% per year from 2027‑2030, outpacing the broader commercial solar market, according to forecasts from SEIA and Wood Mackenzie. Researchers estimate the global carport market could reach US$50 billion by 2035, driven by a 35% CAGR and the integration of storage and EV charging. In the United States, surface parking alone covers more than 5 % of urban land, an area larger than Rhode Island and Delaware combined, yet almost none of it currently generates electricity.

A half‑megawatt carport is a heavy‑construction project

A typical commercial carport is about 0.5 MW in capacity, 25 ft tall, and requires roughly 100 cubic yards of concrete – the equivalent of ten truckloads. This heavy‑construction footprint makes carports fundamentally different from rooftop installations, which are largely modular and lightweight.

Up‑front engineering is the cheapest insurance

Because margins are thin, the most cost‑effective risk mitigation is to spend on pre‑bid engineering. Sinclair Designs (SDE) reports a 30 % close rate, meaning the upfront engineering spend is recouped on the majority of projects that move forward. A four‑step workflow – geotechnical study, finite‑element analysis, internal design review, then manufacturing – can turn an uncertain bid into a reliable price.

Foundations drive cost volatility and margins

Foundations are the single biggest source of cost overruns. Drilling a clean Michigan clay hole costs about $800 per hole, but encountering hard shale can push that to $2,500, adding up to $60,000 on a half‑megawatt site. This variability explains why carport prices are 2‑3 × higher per watt than rooftop systems. Successful EPCs either price the worst‑case scenario with built‑in contingency or share the risk transparently with the client.

Steel and procurement can be locked in, but the ground can’t

While steel prices can be fixed through material deposits and on‑site stockpiling, the subsurface conditions cannot. EPCs rely on 811 locate calls, existing geotech reports (available about 90 % of the time), and local drillers to avoid surprises such as buried ducts or voids that have caused costly redesigns.

What it means for Israel’s commercial solar market

Israel’s commercial solar installations typically cost ₪2,200 per kWp and earn a feed‑in tariff of ₪0.41 per kWh. Applying these benchmarks to a 0.5 MW (500 kWp) carport gives:

• Capex: 500 kWp × ₪2,200/kWp = ₪1.1 million.
• Annual energy yield (South region, 1,950 kWh/kWp): 500 kWp × 1,950 kWh/kWp = 975,000 kWh.
• Annual revenue: 975,000 kWh × ₪0.41/kWh ≈ ₪400,000.
• Simple payback: ₪1.1 million ÷ ₪400,000 ≈ 2.8 years. This illustrative calculation shows that, despite higher upfront costs, a well‑engineered carport can recoup its investment in under three years in Israel, making it an attractive option for municipalities, factories, and large‑scale commercial sites. However, the same foundation risks highlighted in the U.S. apply: inaccurate soil data can quickly erode that margin, underscoring the need for early geotechnical work.

Bottom line for EPCs and developers

Carports reward teams that engineer first, price the ground honestly, and lock in material costs. Skipping the geotechnical phase or under‑estimating foundation work can turn a profitable project into a loss. As the market accelerates, the firms that master these risk‑management practices will capture the fastest‑growing slice of commercial solar.

---

For a deeper dive into Israeli solar ROI, try our solar ROI calculator and explore the latest market data on our data page.

Sources & further reading

• Solar Market Insight Report – SEIA
• US Solar Market Insight | Solar Service - Wood Mackenzie
• What is the current valuation of the Solar Carport Market as of 2024?
• Custom Solar Mounting Solutions,Solar System Racking Design...
• Solar Carport Design Guide 2026: Structure, Costs & EV Charging