The Firm

Castillo Engineering Services. Designed toPermitSucceedSave

With 20+ years of experience and over 850MW worth of solar PV and Energy Storage projects to date, Castillo Engineering is one of the most experienced solar PV engineering firms in the United States. Castillo Engineering delivers expertise in full service (Array, Electrical, Structural, Medium & High Voltage) solar PV design, engineering and consulting services for projects ranging from residential, industrial, commercial and utility-scale. We leverage decades of experience and longstanding AHJ relationships to deliver the fastest, first-time approved, permits in the solar PV industry. At Castillo Engineering – We Design to Permit®

Official Memberships

Licensed in over 40 States

40-States
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First Time Permit Approval Rate
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Successful PV Projects
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States – PE Licensed
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Years Solar Experience