PV System Design Optimizer
Optimize PV array layouts and generate solar system design documentation
What You Can Do
You can rapidly generate optimized PV array layouts tailored to specific site conditions, roof geometry, and geographic locations. The skill calculates key performance metrics including energy yield projections, shade loss analysis, and electrical specifications while producing design documentation that meets industry standards (NFPA 70, IEC 61730) for permitting and client presentations.
Features
calculates ideal panel positioning for maximum solar irradiance based on latitude, climate, and site constraints
models seasonal shade patterns and quantifies their impact on system output and string configuration
generates annual and monthly performance estimates using solar irradiance data and equipment specifications
produces bill of materials, wire sizing, breaker ratings, and string configurations (series/parallel topology)
calculates roof loading requirements and identifies structural engineering considerations for compliance
creates professional layouts, system diagrams, and specification sheets compatible with permitting submissions
evaluates portrait/landscape orientation and string configuration options to optimize output and minimize losses
ensures designs incorporate NFPA 70, IEC 61730, and local electrical standards
Example Output
Example 1: Residential Array Optimization For a 5kW residential installation in Denver, CO with south-facing roof:
- Recommended tilt: 40° (optimal annual irradiance)
- 13 panels @ 385W each in two strings (series-parallel)
- Estimated annual yield: 7,200 kWh/year
- Winter shade loss: 8%, Summer shade loss: 2%
- Wire sizing: 10 AWG, 20A breaker
Example 2: Commercial Flat Roof Design For 25kW system on flat commercial roof:
- East/West split array: 12.5kW each orientation
- Fixed tilt: 25° (flat roof standard)
- Annual production: 33,500 kWh
- Roof loading: 3.2 psf (snow + wind)
- 65 panels total, 5 strings × 13 panels
Example 3: Design Documentation Output Generated one-line diagram showing inverter, DC disconnect, AC disconnect, combiner box, and string configurations with wire gauges and breaker ratings clearly labeled.
What's Included
- SKILL.md instruction file with core PV design methodology:
- Site assessment template (roof geometry, orientation, shading factors):
- Array configuration calculator worksheet (panel count, string topology, electrical specs):
- Energy yield projection template using hourly solar irradiance data:
- Design documentation checklist (one-line diagram, specifications, BOM format):
- Code compliance reference guide (NFPA 70, IEC 61730 requirements):
Who It's For
- Solar engineers and designers — creating optimized system designs for residential and commercial projects
- Electrical contractors — generating specifications and documentation for installation and permitting
- Solar installers — quickly evaluating site feasibility and component sizing
- Project managers — producing client-facing design documentation and bid packages
- Energy consultants — analyzing system performance and design alternatives for solar assessments
Best For
- Residential PV system design (3-15 kW typical)
- Commercial rooftop arrays (25-500 kW)
- Optimal tilt angle and orientation calculations
- Shade loss analysis and mitigation strategies
- Electrical specifications and bill of materials generation
- Design documentation for permitting applications
- Performance estimation and energy yield projections
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