Data
EIA Data Query
Query U.S. Energy Information Administration datasets.
DOE/EIAFERCNERCEPA+7 more
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Tariff Lookup
RatesSearch and retrieve detailed utility rate structures for any U.S. utility. Includes time-of-use schedules, demand charges, tiered rates, and rate rider details.
Example questions you can ask:
- "What are PG&E's commercial TOU rates?"
- "Show me residential rates for Duke Energy Carolinas"
- "Compare demand charges across California IOUs"
Add to your AI assistant
Add to your claude_desktop_config.json under "mcpServers":
"tariff-lookup": {
"command": "npx",
"args": ["@saral/mcp-tariff"]
}What It Does
Search and retrieve detailed utility rate structures for any U.S. utility. Includes time-of-use schedules, demand charges, tiered rates, and rate rider details.
Data sources:OpenEI Utility Rate Database
Update frequency: Updated as utilities file new rates
Supported Regions & Agencies
CPUCUS
California Public Utilities Commission
PUCTUS
Public Utility Commission of Texas
NYPSCUS
New York Public Service Commission
MA DPUUS
Massachusetts Department of Public Utilities
NJ BPUUS
New Jersey Board of Public Utilities
PA PUCUS
Pennsylvania Public Utility Commission
IL CCUS
Illinois Commerce Commission
MPSCUS
Michigan Public Service Commission
FERCUS
Federal Energy Regulatory Commission
Inputs
| Name | Type | Required | Description |
|---|---|---|---|
| utility | string | Yes | Utility name or EIA utility ID |
| sector | string | No | residential, commercial, or industrial |
| rate_name | string | No | Specific rate schedule name |
Outputs
| Name | Type | Description |
|---|---|---|
| rates | array | Matching rate structures |
| rate_details | object | Energy charges, demand charges, TOU periods |
| effective_date | date | Rate effective date |
| source_url | string | OpenEI source link |
Frequently Asked Questions
Over 3,700 U.S. utilities via OpenEI database.
Rates are updated as utilities file new tariffs. Check effective_date in results.
We provide structured data. Source URLs link to original tariff documents.