Running cost of any appliance from watts, hours and electricity price
Running cost of any appliance from watts, hours and electricity price: kWh and cost per day, month and year, standby draw share and CO2 estimate.
Answeringour last check, 2026-10-31
2 of 2checks answered this week
374 msmedian answer time
$0.01listed price per call
$0.01price 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
GET https://saylorinnovations.com/api/energy/appliance-cost
| Category | Market data |
|---|---|
| Provider host | saylorinnovations.com |
| Networks | eip155:137, eip155:42161, eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-31 | valid payment request | 402 | $0.01 | 262 ms |
| 2026-10-29 | valid payment request | 402 | $0.01 | 486 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"hours_per_day": "3",
"rate_per_kwh": "0.17",
"standby_watts": "2",
"watts": "1500"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"hours_per_day": {
"description": "hours in use each day",
"type": "string"
},
"rate_per_kwh": {
"description": "electricity price per kWh",
"type": "string"
},
"standby_watts": {
"description": "optional draw when off",
"type": "string"
},
"watts": {
"description": "appliance power draw in watts",
"type": "string"
}
},
"required": [
"watts",
"hours_per_day",
"rate_per_kwh"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"co2_factor_assumed": {
"description": "kg CO2 per kWh assumed",
"type": [
"number",
"null"
]
},
"co2_kg_per_year": {
"description": "Estimated emissions per year",
"type": "number"
},
"cost_per_day": {
"description": "Average cost per day",
"type": "number"
},
"cost_per_hour": {
"description": "Cost of one hour of use",
"type": "number"
},
"cost_per_month": {
"description": "Average cost per month",
"type": "number"
},
"cost_per_year": {
"description": "Cost per year",
"type": "number"
},
"days_per_year": {
"description": "Days of use per year",
"type": [
"number",
"null"
]
},
"hours_per_day": {
"description": "Hours in use per day",
"type": "number"
},
"kwh_per_day": {
"description": "Average energy per day",
"type": "number"
},
"kwh_per_month": {
"description": "Average energy per month",
"type": "number"
},
"kwh_per_year": {
"description": "Energy per year including standby",
"type": "number"
},
"note": {
"description": "Plain-language caveat about how to read and use the result",
"type": "string"
},
"quantity": {
"description": "Number of units",
"type": [
"number",
"null"
]
},
"source": {
"description": "Where the data or formula comes from",
"type": "string"
},
"standby_cost_per_year": {
"description": "Yearly cost of standby draw",
"type": "number"
},
"standby_share_percent": {
"description": "Share of energy used while off",
"type": "number"
},
"watts": {
"description": "Power draw used",
"type": "number"
}
},
"required": [
"cost_per_year",
"kwh_per_year"
],
"type": "object"
},
"type": {
"const": "json",
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}