Subtracts exported energy from supplied site energy, divides by conditioned floo
Subtracts exported energy from supplied site energy, divides by conditioned floor area and selects the first caller-supplied ascending maximum-intensity band. It does not normalize climate or occupancy, convert primary energy, audit meters or issue a legally recognized energy certificate.
Answeringour last check, 2026-09-24
1 of 1checks answered this week
887 msmedian answer time
$0.002listed price per call
$0.002price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://prop.halowerk.com/v1/energy-certificate
| Category | Code and developer |
|---|---|
| Provider host | prop.halowerk.com |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 2 from 2 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-24 | valid payment request | 402 | $0.002 | 887 ms |
Example input (from the provider)
{
"body": {
"annual_exported_energy_kwh": 18000,
"annual_imported_energy_kwh": 312000,
"conditioned_floor_area_m2": 2400,
"supplied_bands": [
{
"label": "A",
"maximum_kwh_per_m2_year": 80
},
{
"label": "B",
"maximum_kwh_per_m2_year": 120
},
{
"label": "C",
"maximum_kwh_per_m2_year": 170
},
{
"label": "D",
"maximum_kwh_per_m2_year": 240
}
]
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"annual_exported_energy_kwh": {
"maximum": 1000000000000000000,
"minimum": 0,
"type": "number"
},
"annual_imported_energy_kwh": {
"maximum": 1000000000000000000,
"minimum": 0,
"type": "number"
},
"conditioned_floor_area_m2": {
"maximum": 1000000000000,
"minimum": 0.01,
"type": "number"
},
"supplied_bands": {
"items": {
"additionalProperties": false,
"properties": {
"label": {
"maxLength": 64,
"minLength": 1,
"type": "string"
},
"maximum_kwh_per_m2_year": {
"maximum": 1000000000000,
"minimum": 0,
"type": "number"
}
},
"required": [
"label",
"maximum_kwh_per_m2_year"
],
"type": "object"
},
"maxItems": 100,
"minItems": 1,
"type": "array"
}
},
"required": [
"conditioned_floor_area_m2",
"annual_imported_energy_kwh",
"annual_exported_energy_kwh",
"supplied_bands"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}