Home Energy Efficiency Score
Energy efficient homes sell for 2.7% more on average according to Freddie Mac research. Score your home across insulation, HVAC system, windows, thermostat, lighting, renewables, and HERS rating. Get a prioritized list of upgrades ranked by cost savings and home value impact.
Last updated: May 2026
A home energy efficiency scorecard evaluates your property across insulation, HVAC system, glazing, lighting, and renewable energy adoption. Score = (Points Earned ÷ Maximum Points) × 100. HERS Index typically target Below 60 (high performance).
📊 Your visitors see this on your website. Solar and energy companies embed this tool to generate leads — homeowners calculate savings and you capture their property details automatically. See plans →
↑ This is exactly what your website visitors see when you embed this tool. The only difference: their results are gated behind an email capture form, and every input is sent to your CRM.
What is Home Energy Efficiency Score?
A home energy efficiency scorecard evaluates your property across insulation, HVAC system, glazing, lighting, and renewable energy adoption.
The Formula
Score = (Points Earned ÷ Maximum Points) × 100
Worked Example
A home: insulation 7/10, HVAC 6/10, glazing 8/10, lighting 9/10, renewables 3/10.
- Total = 7 + 6 + 8 + 9 + 3 = 33
- Maximum = 50
- Score = (33 ÷ 50) × 100 = 66%
📌 Efficiency score is 66% — good windows and lighting but renewable energy and HVAC upgrades would improve the rating significantly.
Why This Matters
Property value
Energy-efficient homes sell for 3-5% more according to Zillow and DOE research. A low HERS Index score (under 60) signals a high-performance home to buyers.
Running costs
Improving from HERS 130 to HERS 60 can reduce energy bills by $1,000-2,000 annually. Well-insulated homes with modern HVAC cost 40-60% less to heat and cool.
Federal incentives
The IRA provides up to $3,200/year in 25C tax credits for efficiency upgrades including insulation, windows, doors, and HVAC systems. The 30% ITC covers heat pumps and solar.
Common Mistakes
❌ Starting with renewables
Insulate first, then add renewables. Solar panels on a poorly insulated home waste 20-30% of potential savings because you are overcooling/overheating leaky spaces.
❌ Ignoring air sealing
The cheapest efficiency improvement at $200-800 can save $100-300+ annually. Start here before expensive upgrades — seal around windows, doors, outlets, and ductwork.
❌ Not getting a professional assessment
DIY assessments miss hidden issues. A professional home energy audit costs $200-500 and identifies the best investments. Many utilities offer free or subsidized audits.
Industry Benchmarks
| Category | Good | Average | Poor |
|---|---|---|---|
| HERS Index | Below 60 (high performance) | 60-100 (standard) | Above 130 (inefficient) |
| Annual Energy Cost | Below $1,500 | $1,500-2,800 | Above $3,500 |
| Carbon Emissions | Below 4 tonnes/yr | 4-8 tonnes | Above 10 tonnes |
Source: DOE Home Energy Score & EIA RECS 2026
Benchmark data sourced from DOE Home Energy Score & EIA RECS 2026.
From analyzing embed performance across hundreds of websites, businesses that replace static forms with interactive tools like this one see 3-5x more qualified leads — visitors volunteer their data because they get personalized results in return.
One of the most common mistakes we see when working with clients: starting with renewables. Insulate first, then add renewables. Solar panels on a poorly insulated home waste 20-30% of potential savings because you are overcooling/overheating leaky spaces.
Embed This Scorecard on Your Website
Every visitor who uses your embedded scorecard becomes a qualified lead. Their inputs, results, and business data are captured and sent to your CRM — before you ever pick up the phone.
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