How can I calculate the savings from switching to LED bulbs?

You can use the `calculate_lighting_savings` tool by providing the number of bulbs, current wattage, new wattage, annual hours, and your utility rate.

Does this tool account for different climate zones?

Yes, the `calculate_thermal_envelope_savings` tool uses climate zone data to estimate energy reduction from insulation or window upgrades.

Can I see the total return on investment for all my upgrades?

Absolutely. Use the `summarize_investment_return` tool to aggregate savings and calculate your payback period and ROI.

Energy Efficiency Calculator MCP Connector for Claude

A+

Estimate energy savings and ROI for lighting, appliances, insulation, and HVAC upgrades.

5 tools Official Updated Oct 1, 2026 Official Vinkius Partner

More Details Connect to Claude

This MCP server provides a suite of tools to calculate energy consumption reductions, financial returns (ROI and payback period), and carbon footprint mitigation. Use calculate_lighting_savings to find LED savings, calculate_appliance_savings for Energy Star upgrades, and calculate_thermal_envelope_savings for insulation improvements. It also includes calculate_hvac_efficiency_impact and summarize_investment_return to provide a complete financial picture of your efficiency projects.

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Connect to Claude

Subscribe on Vinkius, then add this connector to Claude.ai or Claude Code.

① Claude.ai (web app)

Go to Settings → Connectors → Add custom connector
Paste the MCP endpoint URL below

https://edge.vinkius.com/vk_preview_nQJ7dg03ZPGKD5NWA8FEa46weJJxLjMLK4hpPpi9/mcp

② Claude Code (terminal)

claude mcp add --transport http energy-efficiency-calculator https://edge.vinkius.com/vk_preview_nQJ7dg03ZPGKD5NWA8FEa46weJJxLjMLK4hpPpi9/mcp

③ Claude Desktop

Add to claude_desktop_config.json:

{
  "mcpServers": {
    "energy-efficiency-calculator": {
      "url": "https://edge.vinkius.com/vk_preview_nQJ7dg03ZPGKD5NWA8FEa46weJJxLjMLK4hpPpi9/mcp"
    }
  }
}

Get full access on Vinkius

The preview token above works for testing. Powered by Vinkius.