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ERCOT_SOUTH_DA

Name: ERCOT_SOUTH_DA — ERCOT South Hub Day-Ahead LMP
Creator: Energy API
License: https://energy-api.on-forge.com/terms

ERCOT South Hub Day-Ahead LMP

Daily average Day-Ahead Market LMP for ERCOT South Hub (Texas). Source: gridstatus/ERCOT. Units: USD/MWh.

Electricity Active

Country

USD

Frequency

daily

Update cadence

What is ERCOT South Hub Day-Ahead LMP (ERCOT_SOUTH_DA)?

ERCOT South Hub Day-Ahead LMP is an electricity spot price — the day-ahead market price for electricity delivery in a specific bidding zone. Electricity prices are set by the intersection of supply bids (generation stack) and demand forecasts in the wholesale auction market.

Electricity spot prices are essential for power generators, industrial consumers with variable tariffs, energy retailers, and grid operators. Prices can go negative when renewable generation exceeds demand, and can spike to hundreds of €/MWh during cold waves or supply shortages.

Set daily in the day-ahead market auction
OMIE operates the Iberian electricity market (Spain & Portugal)
Prices can be negative during renewable surplus
Strongly correlated with gas prices and CO₂ costs

Uses and Related Industries

Primary Industries

Power Generators: Renewable and thermal generators sell production at spot or hedge forward via day-ahead prices.

Energy Retailers: Electricity suppliers set consumer tariffs and balance portfolios against spot market volatility.

Industrial Consumers: Large electricity consumers with interruptible tariffs or self-scheduling capabilities.

Grid Operators & TSOs: Transmission system operators use spot prices for balancing and congestion management.

Energy Trading Desks: Intraday and day-ahead spread trading, negative price arbitrage, and cross-border capacity trades.

Specific Applications

Day-ahead electricity price forecasting for generation scheduling
Energy procurement optimization for large industrial consumers
Renewable energy asset valuation and PPA pricing
Negative price event detection and demand response triggering
Cross-border electricity price spread monitoring (Spain vs. Portugal)

API Usage Examples for ERCOT_SOUTH_DA

Click each endpoint to see the request URL, parameters, and a sample response.

API Request

https://energy-api.com/api/v1/latest?api_key=YOUR_API_KEY&symbols=ERCOT_SOUTH_DA

Request Parameters

Parameter	Required	Description
api_key	required	Your API key.
symbols	required	Comma-separated symbol codes. E.g. ERCOT_SOUTH_DA

Sample Response

{
    "success": true,
    "date": "2026-06-13",
    "rates": {
        "ERCOT_SOUTH_DA": 50
    },
    "dates": {
        "ERCOT_SOUTH_DA": "2026-06-13"
    }
}

API Request

https://energy-api.com/api/v1/historical?api_key=YOUR_API_KEY&symbols=ERCOT_SOUTH_DA&date=2026-06-13

Request Parameters

Parameter	Required	Description
api_key	required	Your API key.
symbols	required	Symbol code(s). E.g. ERCOT_SOUTH_DA
date	required	Date in YYYY-MM-DD format.

Sample Response

{
    "success": true,
    "historical": true,
    "date": "2026-06-13",
    "rates": {
        "ERCOT_SOUTH_DA": 50
    }
}

API Request

https://energy-api.com/api/v1/timeseries?api_key=YOUR_API_KEY&symbols=ERCOT_SOUTH_DA&start=2026-05-21&end=2026-06-20

Request Parameters

Parameter	Required	Description
api_key	required	Your API key.
symbols	required	Symbol code(s). E.g. ERCOT_SOUTH_DA
start	required	Start date (YYYY-MM-DD). Query param name is start.
end	required	End date (YYYY-MM-DD). Query param name is end.

Sample Response

{
    "success": true,
    "symbols": [
        "ERCOT_SOUTH_DA"
    ],
    "rates": {
        "2026-05-21": {
            "ERCOT_SOUTH_DA": 50
        },
        "2026-06-20": {
            "ERCOT_SOUTH_DA": 50
        }
    }
}

API Request

https://energy-api.com/api/v1/fluctuation?api_key=YOUR_API_KEY&symbols=ERCOT_SOUTH_DA&start=2026-05-21&end=2026-06-20

Request Parameters

Parameter	Required	Description
api_key	required	Your API key.
symbols	required	Symbol code(s). E.g. ERCOT_SOUTH_DA
start	required	Start date (YYYY-MM-DD). Query param name is start.
end	required	End date (YYYY-MM-DD). Query param name is end.

Sample Response

{
    "success": true,
    "fluctuation": {
        "ERCOT_SOUTH_DA": {
            "start_rate": 50,
            "end_rate": 50.12,
            "change": 0.12,
            "change_pct": 0.24
        }
    }
}

API Request

https://energy-api.com/api/v1/ohlc?api_key=YOUR_API_KEY&symbols=ERCOT_SOUTH_DA&start=2026-05-21&end=2026-06-20&period=monthly

Request Parameters

Parameter	Required	Description
api_key	required	Your API key.
symbols	required	Symbol code. E.g. ERCOT_SOUTH_DA
start	required	Start date (YYYY-MM-DD).
end	optional	End date (YYYY-MM-DD). Defaults to today.
period	optional	Grouping: monthly (default), weekly, quarterly.

Sample Response

{
    "success": true,
    "symbol": "ERCOT_SOUTH_DA",
    "period": "monthly",
    "ohlc": [
        {
            "period": "2026-05",
            "open": 50,
            "high": 50.25,
            "low": 49.9,
            "close": 50.12,
            "data_points": 21
        }
    ]
}

Replace YOUR_API_KEY with your key Get a free API key →

Factors Influencing ERCOT_SOUTH_DA

Market Factors

Day-ahead demand forecast for the bidding zone
Renewable generation forecast: wind and solar capacity factors
Thermal generation availability (outages, maintenance)
Gas and carbon prices (set the marginal cost of gas-fired generation)

Technical Factors

Cross-border interconnector capacity and congestion rents
Pumped hydro storage dispatch and reservoir levels
Intraday price convergence vs. day-ahead settlement
Demand response activation thresholds and interruptible loads

External Factors

Nuclear fleet availability in France (major driver of Iberian imports)
Drought conditions affecting hydropower output in Iberian Peninsula
EU renewable energy policy and installed capacity additions
Industrial demand shifts from economic cycles and energy-intensive sector activity