# SiteCheck Trade & Energy – Green Hydrogen LCOH Calculator

> SiteCheck Trade & Energy – Green Hydrogen LCOH Calculator is a paid API for AI agents from api.tradeenergy-api.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-29).

Calculates the levelized cost of green hydrogen production (LCOH, €/kg) from electrolyser inputs including capex, O&M, electricity, water, and financing assumptions, optionally fetching live EPEX SPOT Germany-Luxembourg electricity prices.

## Facts

- Endpoint: GET https://api.tradeenergy-api.workers.dev/api/energy/hydrogen-spot-production?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sitecheck-trade-energy-green-hydrogen-lcoh-calculator-c708b02a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_wpIMqIV1YP9iqQdakCiRa

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability sitecheck-trade-energy-green-hydrogen-lcoh-calculator-c708b02a
```

Example prompt: Calculate the levelized cost of green hydrogen production assuming a 700 €/kW electrolyser capex, 50 kWh per kg electricity consumption, 5% WACC, 6,000 full-load hours per year, a 25-year lifetime, 2% O&M, and an electricity price of 45 €/MWh — and break down the cost by capex, O&M, electricity, and water.

## When to prefer this

Choose this endpoint when you need a transparent, itemized techno-economic breakdown of green hydrogen production cost (LCOH) from first principles — capex annuity, O&M, electricity, and water — rather than a traded market price. Especially useful when you want to vary electrolyser cost, efficiency, financing, or load factor assumptions, or when you want to anchor calculations to the live EPEX SPOT Germany-Luxembourg day-ahead price automatically. It is not a hydrogen spot market price feed.

## Known failure modes

- If EPEX SPOT data is unavailable and no electricity price is supplied, the endpoint may fail or return an error
- Invalid query parameter types (e.g. non-numeric strings) may cause computation errors
- capacityFactorHours outside the 500–8760 range may be rejected
- Network timeout on the Cloudflare Worker if EPEX data fetch is slow

## How this service works

Green hydrogen levelized production cost (LCOH, per kg) from an electrolyser: capital cost annuity, fixed O&M, electricity and water, from your inputs or defaults (system 55 kWh/kg, 1,000 €/kW installed, 8% WACC, 20 years, 4,000 full-load hours, 3% O&M). Without an electricity price it uses the latest EPEX SPOT Germany-Luxembourg day-ahead baseload price. A transparent calculator, not a traded hydrogen price.

## Output

A JSON object containing the total LCOH in €/kg, broken down into capex annuity per kg, O&M per kg, electricity cost per kg, and water cost per kg, plus the capital recovery factor, the electricity price and its source (user-supplied or live EPEX SPOT), a timestamp, and all assumptions used in the calculation. Includes a note that grid fees, taxes, compression, storage, and stack replacement are excluded.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [],
     "properties": {
      "waccPct": {
       "type": "string",
       "description": "Discount rate % (default 8)"
      },
      "kwhPerKg": {
       "type": "string",
       "description": "System electricity use, kWh per kg H2 (default 55)"
      },
      "capexPerKw": {
       "type": "string",
       "description": "Installed electrolyser system cost, €/kW (default 1000)"
      },
      "omPctOfCapex": {
       "type": "string",
       "description": "Fixed O&M, % of capex per year (default 3)"
      },
      "lifetimeYears": {
       "type": "string",
       "description": "Economic life, years (default 20)"
      },
      "electricityPrice": {
       "type": "string",
       "description": "€/MWh (default: latest EPEX DE-LU day-ahead baseload)"
      },
      "capacityFactorHours": {
       "type": "string",
       "description": "Full-load hours per year, 500-8760 (default 4000)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "note": "Green (electrolytic) hydrogen. Grid fees, taxes, compression, storage and stack replacement are not included.",
  "source": "https://www.epexspot.com/en/market-results",
  "omPerKg": 0.41,
  "currency": "EUR",
  "checkedAt": "2026-10-23T09:38:23.419Z",
  "lcohPerKg": 9.47,
  "capexPerKg": 1.4,
  "waterPerKg": 0.09,
  "assumptions": {
   "waccPct": 8,
   "kwhPerKg": 55,
   "capexPerKw": 1000,
   "omPctOfCapex": 3,
   "fullLoadHours": 4000,
   "lifetimeYears": 20,
   "waterEurPerKg": 0.09
  },
  "electricityPerKg": 7.57,
  "capitalRecoveryFactor": 0.1019,
  "electricityPricePerMwh": 137.59,
  "electricityPriceSource": "EPEX SPOT DE-LU day-ahead baseload, delivery 2026-10-23"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sitecheck-trade-energy-green-hydrogen-lcoh-calculator-c708b02a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.tradeenergy-api.workers.dev](https://www.zero.xyz/host/api.tradeenergy-api.workers.dev/llms.txt)