
Landscape Lighting Design Optimizer
Generate photometric analysis and fixture placement specs for landscape lighting designs
What You Can Do
You can translate landscape lighting requirements into complete technical specifications, including precise foot-candle calculations for different zones, optimal fixture placement strategies, electrical circuit planning with voltage drop analysis, and energy consumption modeling. The skill ensures designs comply with IESNA standards, NFPA codes, and local dark-sky ordinances while balancing aesthetic impact with operational efficiency.
Features
calculates foot-candle distribution across landscape zones (accent, task, safety)
determines ideal positions and aiming angles for even light distribution and visual impact
layouts circuits with voltage drop calculations and amperage load assessment
projects annual operating costs, wattage requirements, and ROI for fixture selections
ensures designs meet IESNA guidelines, NFPA codes, and local dark-sky regulations
recommends specific fixture types and wattages with technical justification
generates fixture inspection and lamp replacement timelines
produces client-ready technical reports bridging conceptual plans and installation specs
Example Output
Input: Residential backyard 60ft × 40ft, mixed plantings, existing 100-amp service 80ft from site, accent lighting on specimen trees and task lighting along walkway.
Output:
Photometric Analysis:
- Specimen tree accent zones: 5–10 fc, achieved with (2) 50W LED spotlights per tree at 15° aiming angle
- Walkway task lighting: 3–5 fc horizontal, (4) 20W bollard fixtures at 8ft spacing
- Ambient buffer areas: 0.5–1 fc ambient
Fixture Placement Plan:
- Tree A (35ft from service): 50W PAR38 LED (5000K, 40° beam), positioned 6ft from trunk, aimed 25° upward
- Walkway circuit: 20W warm-white bollards (2700K) at 0–8ft, 8–16ft, 16–24ft, 24–32ft stations
Electrical Design:
- 12 AWG direct burial, 3 circuits (80A sub-panel), total load 340W, voltage drop 2.1% (acceptable)
- Low-voltage option: 12V transformer w/ 10 AWG cable reduces voltage drop to 0.8%
Energy Analysis:
- Annual operating hours: 4,015 (dusk to 11 PM, 365 days)
- LED system energy: 1,367 kWh/year at $0.14/kWh = $191/year
- Halogen equivalent would cost $847/year (77% savings)
- ROI on LED fixtures: 3.2 years
What's Included
- SKILL.md instruction file with skill overview and usage guidelines:
- Photometric calculation template: foot-candle requirements by zone type and fixture type reference
- Fixture placement spreadsheet: coordinate mapping, aiming angles, and beam spread calculations
- Electrical circuit planning checklist: voltage drop calculator, amperage load sheet, wire gauge selector
- Energy modeling worksheet: annual hours calculator, kWh projections, cost-benefit analysis
- Compliance reference guide: IESNA/NFPA code summaries, dark-sky ordinance checklist, local regulation prompts
Who It's For
- Landscape lighting designers — creating detailed specifications and technical justifications for client projects
- Landscape architects — integrating lighting design into comprehensive site plans with photometric confidence
- Electrical contractors — translating design intent into circuit layouts, load calculations, and installation specs
- Residential/commercial property managers — evaluating retrofit or upgrade projects with energy impact modeling
- Design-build firms — accelerating project delivery with data-driven fixture selection and placement
Best For
- Photometric analysis and foot-candle calculations for landscape zones
- Fixture placement optimization balancing aesthetics and energy efficiency
- Electrical circuit planning with voltage drop and amperage assessment
- Compliance verification against IESNA, NFPA, and dark-sky regulations
- Energy cost projections and ROI analysis for LED vs. halogen fixture decisions
- Client documentation and technical reports for design justification
- Maintenance scheduling and fixture lifecycle planning







