DESIGNING TOMORROW'S POWER® | EMAIL: INFO@CASTILLOPE.COM
DESIGNING
TOMORROW'S POWER®
Top-tier residential solar and energy storage design firm
Castillo Engineering is a leading solar design firm with more than two decades and 30,000 completed projects worth of experience. With a patented four-step planning, approval and quality assurance process, Castillo Engineering serves as the leading permitting partner for the nation’s top residential solar contractors.
Accurate and compliant drawings are critical to getting faster permits, which is the key to our customers’ productivity and profitability. Castillo Engineering utilizes its solar experience to help contractors get the fastest permits without the cost or hassle of negotiating building code details with the local AHJ and utility. Castillo Engineering maintains an industry-leading 99 percent first-time permit approval rating.
Schedule a meeting with one of our solar and storage experts
Our Plans Include
All Castillo Engineering Design to Permit packages include:
Title Page
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Project Description
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Governing Codes
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Sheet Index
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Equipment Summary
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Plot Plan / Parcel Map
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Vicinity Map
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Aerial View
Labeling
For Rapid Shutdown, AC / DC, AC Labeling / DC Labeling, NEC-required Warning Labels, and Labeling Sizing & Material
Requirements
Symbols and System Description Sheet
Project Plan & Modules
including Module Type, Dimensions & Weight
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Array & Roof Area Calculations
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Roof / Ground Mount Description
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Anchoring System Spacing
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Conduit Run
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Major Equipment Components and Equipment
Anchoring Details
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Attachment Detail
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Weather Proofing
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Structural Load Calculations (Wind, Snow, Seismic)
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Racking & Mounting Hardware
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Foundation Details
Easy Install Wiring Diagrams
including 3-line Wire Diagrams
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Wire Sizing, Conduit Sizing, String Sizing (DC/AC),& Branch Circuit Sizing (DC/AC)
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Grounding Requirements
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Point of Interconnection Details (breaker, line-side tap, subpanels, etc.)
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Ampacity, Conduit, & Voltage Drop Calculations per NEC Standards
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Inverter Specifications
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Solar Module Specifications
Specification Sheets
for Solar Modules, Inverters, & Racking
WHY CASTILLO?
Our proprietary site-specific solar design process speeds up your installs and reduces your costs, coupled with a dedicated Technical Support Engineer for each client, Castillo provides everything you need to make your projects more profitable.
Residential Next Day Turnaround
Our design process was developed in conjunction with our customers’ feedback, resulting in an extremely quick, next day, turnaround time. We also standardize your plans to streamline your installation process, shortening your project duration, which increases profitability.
Consistently High Accuracy
99.9% first time permit approval rating – Our intimate relationships with each Building Department nationwide provides us with a deep understanding of the approval process in every jurisdiction. These relationships, combined with the fact that we document and track every building departments’ unique code requirements, have resulted in a consistently high 99.9% first time permit approval rating.
Scale and Grow Your Business
Our business acumen, forecasting skills, and proprietary processes help you scale your business as your sales grow. We can also assist you with expanding into new markets throughout the U.S. with the same next day turnaround time and 99.9% first time permit approval rating.
Lowest Bill
of Material
Equipment
Expertise
Zero-Risk,
Safe Installs
Our solar design expertise results in a minimum bill of materials, eliminating wastage and cost overruns that drain the profitability of your project, without compromising quality. As a result, you finish your projects faster, with less material and more profit.
Due to the fact that our extensive customer base across the country utilizes a wide variety of products, alongside our strong manufacturer relationships that have been developed over the past 25+ years, we are always apprised of the latest products being introduced to the market. As a result, our engineers offer expert equipment selection recommendations to ensure that each product best suits your project needs, so that you permit quickly, install easily, and maximize project value.
Our site-specific plans adhere to both the latest NEC and local state safety requirements. This keeps your customers safe from mechanical failure and injury and protects you, your license, and your company from exposure and liability.
Permit Faster
On - Demand Support
Increase Profitability
Live Technical & Customer Support
Every Castillo client has a dedicated Technical Support Engineer to assist you with any design changes, provide status updates, and expert – during construction – technical phone support so you can complete your projects on-time, under budget, and with the quality your clients’ demand. No more waiting for returned emails or phone calls. We get you the information and assistance you need when you need it most.
FLEXIBLE TIERS.
FANTASTIC SAVINGS.
Our program supports and recognizes our valued partners as they reach higher levels of success. Castillo Engineering helps their Permit Partners successfully scale their businesses.
THE PERMIT PARTNER™ PROGRAM
Permit Faster
On - Demand Support
Increase Profitability
WHY CASTILLO?
Our proprietary site-specific solar design process speeds up your installs and reduces your costs, coupled with a dedicated Technical Support Engineer for each client, Castillo provides everything you need to make your projects more profitable.
Residential Next Day Turnaround
Consistently High Accuracy
Scale and Grow Your Business
Lowest Bill
of Material
Equipment
Expertise