Free · Public · Stateless

Energy calculations for AI.

A public, stateless calculation service for ChatGPT, Claude, Codex, and any compatible MCP client. No MicroGrid-IQ account or customer project is required.

Calculators

Available calculators

Energy use

Constant power × duration in kWh, Wh, and Btu.

AC power

Single-phase or balanced three-phase real, apparent, and reactive power.

Voltage drop

Copper-conductor planning estimate with a caller-selected drop limit.

Dwelling load

Traditional 240 V service-load planning estimate from explicit loads.

Utility bill

Caller-supplied flat energy rate, fixed charges, tax, and optional demand charge.

Battery backup

Usable and nameplate energy capacity for a critical load and duration.

Cash-flow metrics

NPV, IRR, simple payback, and discounted payback from explicit cash flows.

Connect once, then ask naturally

Use the same calculator server in ChatGPT or Claude

01

ChatGPT

  1. Open Settings → Security and login.
  2. Enable Developer mode.
  3. Open Plugins, select +, and add an MCP server.
  4. Use https://microgrid-iq.com/mcp.
02

Claude

  1. Open Customize → Connectors.
  2. Select + → Add custom connector.
  3. Name it MicroGrid-IQ Calculator.
  4. Use https://microgrid-iq.com/mcp; no OAuth is required.
03

Claude Code

Run:

claude mcp add --transport http --scope user microgrid-iq-calculator https://microgrid-iq.com/mcp

Starter prompts

Calculate energy use for a constant 5 kW load running for 8 hours.

Estimate voltage drop for 240 V single phase, 20 A, 100 feet one way, using 12 AWG copper and a 3% limit.

Size battery energy for a constant 2 kW critical load for 12 hours, 80% depth of discharge, and a 10% margin.

Data handling

No account and no customer-project access

Calculations run from the numeric values supplied in the request. The public service does not open MicroGrid-IQ accounts, read private projects, or save inputs as customer projects. Normal hosting and security logs may contain request metadata. Do not send credentials, addresses, private customer records, or confidential project data. See the privacy policy for details.

Developer details

MCP endpoint: https://microgrid-iq.com/mcp
REST catalog: https://microgrid-iq.com/api/ai/calculators

If a client cannot discover the tools, confirm the MCP URL ends in /mcp, reconnect it, and report persistent failures through support.