Energy return on investment API

Computes EROI/EROEI, net energy and the net-energy fraction from energy delivered vs invested, with a viability rating. Answers 'What is the EROI for 1000 units delivered and 50 invested?', 'Is this energy source a net producer?'.

Price$0.04per request

MethodPOST

Route/v1/climate/eroi

StatusLive

MIME typeapplication/json

Rate limit120/minute

Cache0s public

eroieroeinet-energyenergy-returnsustainabilityenergyviabilitylca

API URLhttps://x402.hexl.dev/v1/climate/eroi

Integration docs

Example request

{
  "energyDelivered": 1000,
  "energyInvested": 50
}

Example response

{
  "eroi": 20,
  "netEnergy": 950,
  "netEnergyFraction": 0.95,
  "energyDelivered": 1000,
  "energyInvested": 50,
  "viability": "high-quality source",
  "interpretation": "EROI 20:1 — high-quality source; 95% of output is net surplus.",
  "formula": "EROI = energy delivered / energy invested; net-energy fraction = (out−in)/out"
}

Input schema

{
  "type": "object",
  "required": [
    "energyDelivered",
    "energyInvested"
  ],
  "properties": {
    "energyDelivered": {
      "type": "number",
      "description": "Energy delivered (any consistent unit)",
      "examples": [
        1000
      ]
    },
    "energyInvested": {
      "type": "number",
      "description": "Energy invested (same unit)",
      "examples": [
        50
      ]
    }
  }
}

Output schema

{
  "type": "object",
  "additionalProperties": true
}