
Residential Energy Audit Analysis & Retrofit Recommendation Engine
Analyze residential energy audits and generate prioritized retrofit recommendations with ROI.
What You Can Do
You analyze residential energy consumption patterns, audit findings, and building characteristics to generate prioritized retrofit recommendations ranked by payback period, seasonal impact, and cost-effectiveness. The skill calculates ROI metrics (simple payback, NPV, IRR), identifies compliance gaps against energy codes and incentive programs, and sequences interdependent measures to optimize retrofit strategy while accounting for behavioral factors and equipment lifecycles.
Features
interprets utility bills and audit data to identify primary energy loss vectors and seasonal efficiency variations
ranks interventions by simple payback period, combined ROI metrics, and seasonal impact with prerequisite relationship mapping
calculates simple payback, NPV, and IRR for individual and bundled measures with sensitivity analysis for utility rate scenarios
cross-references retrofit measures against local energy codes, weatherization standards, and incentive program requirements
identifies dependent retrofit measures (air sealing before insulation) and generates phased implementation roadmaps
formats findings with clear value propositions for non-technical homeowners including before/after utility projections
identifies applicable rebates, tax credits, and utility programs that reduce net retrofit costs and improve payback metrics
Example Output
Retrofit Priority Report for 1960s Ranch Home (Climate Zone 5A)
Top Priority Measures:
- Air sealing (blower door-guided) — $800 cost, $340/year savings, 2.4-year payback, 28% annual energy reduction
- Attic insulation R-19→R-38 — $1,200 cost, $280/year savings, 4.3-year payback, eligible for $500 state rebate
- HVAC replacement (seasonal demand analysis post-envelope) — $5,200 cost, $420/year savings, 12.4-year payback, ENERGY STAR tax credit applies
Compliance Status: Fails 2024 energy code (air leakage >12 ACH50). Air sealing + insulation sequence brings to code-compliant 8.2 ACH50.
Bundled Scenario: All three measures = $7,200 investment, $1,040/year total savings, 6.9-year simple payback (vs. individual 2.4/4.3/12.4 years). Available incentives reduce net cost to $6,200.
What's Included
- SKILL.md: Complete skill instruction file with audit data synthesis workflow
- Energy Audit Analysis Template: Standardized input framework for utility consumption, blower door results, thermal imaging data, and equipment inventory
- Retrofit Prioritization Checklist: Multi-criteria ranking matrix (payback period, seasonal impact, compliance status, incentive eligibility, measure dependencies)
- ROI Calculation Framework: Spreadsheet-ready formulas for simple payback, NPV (discount rates 3-7%), IRR, and utility cost sensitivity analysis
- Client Report Template: Before/after energy projections, financial summaries, and visual retrofit sequencing roadmap for homeowner decision support
Who It's For
- Energy efficiency engineers — who need systematic retrofit sequencing and financial justification for recommendations
- Weatherization program managers — coordinating incentive-eligible measures across service areas
- HVAC/building envelope contractors — validating retrofit priorities before submitting proposals to homeowners
- Residential energy auditors — presenting findings beyond blower door and utility bill data into actionable retrofit plans
- Energy consultants — modeling retrofit scenarios for homeowners comparing DIY vs. contractor-led upgrades
Best For
- Generating prioritized retrofit recommendations from post-audit data with transparent ROI calculations
- Sequencing interdependent measures (envelope before HVAC, air sealing before insulation) into phased implementation plans
- Calculating simple payback, NPV, and IRR for individual and bundled retrofit measures
- Identifying compliance gaps against current energy codes and weatherization standards
- Matching retrofit measures to incentive programs (rebates, tax credits, utility incentives) and estimating net costs to homeowners







