Energy Efficiency Estimator MCP for AI. Pinpoint where your home loses heat—and how to fix it.
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The Energy Efficiency Estimator MCP analyzes your building's structural weakness points to give you a quantifiable A through E performance rating.
It uses core metrics like U-values and SHGC to pinpoint exactly why your home loses energy. You get an immediate, prioritized blueprint for improvement that tells you where to spend money—and on what material.
What your AI can do
Query orientation bias
Determines the passive energy benefit or detriment based on how your building faces the sun.
Query improvement recommendations
Gets a prioritized list of actionable upgrades needed for building envelope deficiencies.
Query structure thermal score
Calculates a raw thermal performance index for an entire residential structure.
Determine a raw thermal performance index based on core structural metrics like wall and roof material thickness.
Factor in passive solar gain or loss, adjusting the overall score by your home's cardinal direction.
Receive a prioritized list of specific structural fixes and improvements needed to boost your efficiency rating.
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Energy Efficiency Estimator: 3 Tools
Use these three specialized tools to calculate a structure’s thermal performance score, adjust for site orientation, and generate an actionable list of building upgrades.
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Add this MCP to Claude, Cursor, or Windsurf and your AI stops guessing. It gets real tools to look things up, take action, and handle the stuff you keep doing by hand.
Start using Energy Efficiency Estimator on VinkiusQuery Orientation Bias
Determines the passive energy benefit or detriment based on how your building faces the sun.
Query Improvement Recommendations
Gets a prioritized list of actionable upgrades needed for building envelope...
Query Structure Thermal Score
Calculates a raw thermal performance index for an entire residential structure.
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Works with Claude, ChatGPT, Cursor, and more
The Model Context Protocol standardizes how applications expose capabilities to LLMs. Instead of operating in isolation, your AI gains direct access to external platforms, live data, and real-world actions through secure, standardized connections.
This connection provides 3 powerful capabilities that interface natively with Claude, ChatGPT, Cursor, and other compatible AI platforms. No middleware. No custom integration required.
The endless cycle of vague audits and guesswork.
Most people deal with this by getting a basic energy audit. These reports are often broad, giving you general advice like 'insulation is needed' or 'upgrade your windows.' You get a stack of suggestions, but they don't tell you which fix gives the best bang for your buck; they just list expensive things.
With this MCP, you skip the guesswork. By analyzing specific component metrics—like wall thickness and SHGC—you move past vague advice. You receive an immediate, quantified energy rating that tells you exactly where to focus your renovation budget.
You get a clear action plan with query_improvement_recommendations.
The biggest thing that goes away is the need for multiple follow-up consultations. You don't have to pay three different people just to figure out if it’s the roof or the walls; you run the necessary calculations yourself and get a single, cohesive list of steps.
You end up with a true blueprint—a clear roadmap that connects raw structural data directly to measurable savings.
What your AI can actually do with this
Trying to renovate without knowing where the structural leaks are is a nightmare. Standard energy audits often give vague results or cost too much just to start. This MCP fixes that by giving you hard numbers about your building envelope. You plug in key component data, and it calculates a precise thermal index for the structure.
Then, it refines that score by factoring in your home’s geographic orientation—like whether it faces south or north. Finally, it compiles everything into a simple list of actionable upgrades. It prevents you from guessing what works and ensures every fix contributes to measurable energy savings. You can connect this entire workflow through the Vinkius catalog, keeping all your specialized tools accessible in one place.
019ec7e5-9f0e-70d3-8a69-3c98154e9667 Here's how it actually works
The bottom line is you get an immediate, quantified roadmap for making your home more energy efficient without guessing.
Input your building's metrics, including material thicknesses and component U-values.
The MCP calculates the raw thermal index, then adjusts that score using your home’s geographic orientation (like South-facing vs. North-facing).
You receive a final A-E rating and a prioritized list of specific improvements needed for structural efficiency.
Who is this actually for?
The architect who needs to validate a client’s building envelope before drafting begins. The property manager dealing with multiple units that need cost-effective upgrades. Or the homeowner tired of vague advice and needing hard, structural data.
Uses it to validate initial designs by calculating the theoretical thermal performance index before materials are chosen.
Runs diagnostics to pinpoint specific material flaws, like high U-values in roofing or glazing, that require immediate attention.
Generates improvement recommendations for aging buildings, helping decide which units need structural work versus cosmetic touches.
What Changes When You Connect
You get a quantified A-E rating, not just 'average.' The process gives you an immediate score that holds up against structural data points.
It adjusts for location. Running the query_orientation_bias step accounts for passive solar gain or loss based on your home's actual compass direction.
You stop overspending. Instead of random fixes, the system delivers a prioritized list via query_improvement_recommendations, telling you exactly what to tackle first.
It’s structural math, not guesswork. The MCP connects raw component metrics directly to measurable savings, giving you a true blueprint for efficiency.
You assess total performance in one shot. First, use query_structure_thermal_score for the base calculation, then refine it with orientation and recommendations.
See it in action
Determining Renovation Priorities
A homeowner has a 'C' grade rating but doesn't know if better windows or improved insulation is the bigger deal. They run query_improvement_recommendations after calculating the base score with query_structure_thermal_score. The resulting list tells them exactly which component offers the highest return on investment.
Assessing International Builds
An engineer is working in a different climate zone than their previous projects. They use query_orientation_bias to factor in the specific regional exposure before calculating the final score with query_structure_thermal_score, ensuring local conditions are accounted for.
Validating Architectural Designs
An architect needs to prove a building meets modern standards. They input all design metrics and run the full sequence of tools, culminating in query_improvement_recommendations which provides quantifiable data they can present to clients.
The honest tradeoffs
Guessing at fixes.
Reading a magazine and deciding the roof needs fixing because it looks old, without checking if the walls or windows are actually the biggest source of heat loss. This wastes money on ineffective upgrades.
Always start by calculating the base score using query_structure_thermal_score. Then run query_improvement_recommendations to get a data-driven list that tells you where the actual weakest point is.
Ignoring geography.
Calculating an efficiency rating for a house facing North as if it were facing South. This leads to grossly inaccurate scores because passive solar gain/loss was ignored.
Never forget the environment. You must factor in site orientation using query_orientation_bias before accepting any final thermal index score.
When It Fits, When It Doesn't
Use this MCP if your goal is structural performance analysis, specifically getting an A-E rating based on physical metrics like U-values and SHGC. You need to know why the energy is lost. Don't use it if you just want interior design ideas or color palettes; that’s a different kind of tool entirely. If your problem is purely structural integrity, run query_structure_thermal_score. If the issue is about how the site affects performance, start with query_orientation_bias. Only accept an upgrade list from query_improvement_recommendations if you've completed both scores first.
Questions you might have
What does query_structure_thermal_score actually calculate? +
It calculates the base thermal performance index for your entire structure based on metrics like U-values and component thicknesses. This gives you the raw number before location is factored in.
How does query_orientation_bias work with my data? +
This tool adjusts your core score by assessing how passive solar gain or loss affects the building, factoring in its cardinal direction (e.g., South-facing exposure).
Should I use query_improvement_recommendations first? +
No. You need a number to start with. Run query_structure_thermal_score and query_orientation_bias first; then, feed those results into query_improvement_recommendations to get the best plan.
Do I need professional help for the thermal index calculation? +
No. The MCP handles the complex mathematical modeling of the thermal index, allowing you to run precise calculations yourself using query_structure_thermal_score.
What specific metrics does query_structure_thermal_score need to run accurately? +
The tool requires precise input on component U-values, wall thicknesses, and the window's SHGC rating. If you omit core material specifications, the resulting thermal index will be incomplete or inaccurate.
If my home has a complex or seasonal orientation, how does query_orientation_bias manage it? +
It calculates bias based on standard cardinal directions (North, South, East, West). For mixed exposure, provide the most dominant direction. The tool uses established passive solar models and cannot analyze dynamic microclimates.
Does query_improvement_recommendations cover mechanical systems like HVAC units? +
No, this MCP focuses only on the building envelope elements (walls, windows, roof). Recommendations provided are limited to structural deficiencies and cannot analyze or upgrade non-envelope mechanical systems.
Are there usage limits when running query_structure_thermal_score repeatedly? +
The Vinkius platform manages rate limiting across all tools. However, running a full assessment using all three MCP functions might take up to thirty seconds; keep your component descriptions concise for faster results.
What inputs are needed to get the initial score? +
The core metrics include total heated area, wall thickness, and combined U-values. The query_structure_thermal_score tool uses these inputs to generate the raw thermal index.
Does my home's direction matter for the score? +
Yes. The query_orientation_bias tool accounts for passive solar gain and wind loads (e.g., South-East vs. North). This factor modifies the score to give a regionally accurate assessment.
How do I know what to fix after the rating? +
After receiving your A-E classification, use the query_improvement_recommendations tool. It analyzes component weaknesses and provides a prioritized list of actionable upgrades (e.g., upgrading glazing or improving roof insulation).
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