Empowering Energy Communities: Utilizing Energy API to Foster Local Energy Solutions

Introduction

In today's rapidly evolving energy landscape, the need for reliable and accessible market data has never been more critical. Energy traders, data engineers, and sustainability teams face significant challenges when trying to gather and analyze wholesale energy market data. The traditional methods of scraping government portals or stitching together incompatible formats can be time-consuming, error-prone, and inefficient. This is where Energy API comes into play, providing a unified solution that aggregates data from multiple trusted sources into a single, normalized REST API.

By leveraging the capabilities of Energy API, developers can access a wealth of information across various energy commodities, including electricity, natural gas, crude oil, coal, carbon allowances, and grid carbon intensity. This blog post will explore how Energy API empowers energy communities by providing the tools necessary to foster local energy solutions, streamline data access, and enhance decision-making processes.

Why Energy API

Energy API stands out in the crowded field of energy data providers for several reasons:

• Unified Data Access: Instead of dealing with multiple sources like OMIE, ENTSO-E, and EIA, Energy API offers a single, normalized REST surface. This means developers can access diverse data sets without worrying about different formats, schedules, or naming conventions.
• Comprehensive Coverage: With over 39 symbols across six commodity categories, Energy API provides extensive market data. This breadth allows developers to build applications that require insights from multiple energy sectors, all in one API call.
• Rapid Development: The consistent JSON schema across all commodities means that developers can ship features in hours rather than weeks. This accelerates the development cycle and allows teams to focus on building innovative solutions rather than wrestling with data integration.
• Trusted Data Providers: Energy API aggregates data from reputable sources such as OMIE, ENTSO-E, EIA, and FRED. This ensures that users are working with accurate and reliable information, which is crucial for making informed decisions in the energy market.

Quick Start

Getting started with Energy API is straightforward. The base URL for accessing the API is:

https://energy-api.com/api/v1

To make your first request, you will need to include your API key as a query parameter. Here’s an example of how to retrieve the latest prices for Brent Crude and TTF Gas:

curl -G https://energy-api.com/api/v1/latest \
--data-urlencode "symbols=BRENT_CRUDE,TTF_GAS" \
--data-urlencode "api_key=YOUR_API_KEY"

The expected JSON response will look like this:

{
"success": true,
"date": "2026-06-11",
"base": "MIXED",
"rates": {
"BRENT_CRUDE": 74.82,
"TTF_GAS": 38.15
},
"dates": {
"BRENT_CRUDE": "2026-06-11",
"TTF_GAS": "2026-06-11"
},
"currencies": {
"BRENT_CRUDE": "USD",
"TTF_GAS": "EUR"
}
}

In this response, the key fields include:

• success: Indicates whether the API call was successful.
• date: The date of the data retrieved.
• base: The base currency for the rates provided.
• rates: An object containing the latest prices for the requested symbols.
• currencies: The currency in which each rate is expressed.

Core Endpoints

Energy API offers a variety of endpoints that cater to different data needs. Here are four core endpoints relevant to energy data:

1. GET /latest

This endpoint retrieves the most recent price for one or more symbols.

Key Params: symbols (required), base (optional), category (optional)

curl -G https://energy-api.com/api/v1/latest \
--data-urlencode "symbols=BRENT_CRUDE,TTF_GAS,EUA_CO2" \
--data-urlencode "api_key=YOUR_API_KEY"

JSON Response:

{
"success": true,
"date": "2026-06-11",
"base": "MIXED",
"rates": {
"BRENT_CRUDE": 74.82,
"TTF_GAS": 38.15,
"EUA_CO2": 67.40
},
"dates": {
"BRENT_CRUDE": "2026-06-11",
"TTF_GAS": "2026-06-11",
"EUA_CO2": "2026-06-11"
},
"currencies": {
"BRENT_CRUDE": "USD",
"TTF_GAS": "EUR",
"EUA_CO2": "EUR"
}
}

Field Explanation: The response includes the latest prices for Brent Crude, TTF Gas, and EUA CO2, along with their respective currencies.

2. GET /historical

This endpoint provides prices for all symbols on a specific past date. If the date falls on a non-publishing day, it returns the most recent value before it.

Key Params: date (YYYY-MM-DD, required), symbols (required), base (optional)

curl -G https://energy-api.com/api/v1/historical \
--data-urlencode "date=2025-09-15" \
--data-urlencode "symbols=BRENT_CRUDE,TTF_GAS" \
--data-urlencode "api_key=YOUR_API_KEY"

JSON Response:

{
"success": true,
"date": "2025-09-15",
"base": "MIXED",
"rates": {
"BRENT_CRUDE": 71.45,
"TTF_GAS": 36.20
},
"currencies": {
"BRENT_CRUDE": "USD",
"TTF_GAS": "EUR"
}
}

Field Explanation: This response provides historical prices for Brent Crude and TTF Gas on the specified date, allowing for trend analysis and historical comparisons.

3. GET /timeseries

This endpoint retrieves historical series between two dates, which is ideal for charting and trend analysis.

Key Params: start (required), end (required), symbols (required), base (optional)

curl -G https://energy-api.com/api/v1/timeseries \
--data-urlencode "start=2025-01-01" \
--data-urlencode "end=2025-03-31" \
--data-urlencode "symbols=BRENT_CRUDE,TTF_GAS" \
--data-urlencode "api_key=YOUR_API_KEY"

JSON Response:

{
"success": true,
"base": "MIXED",
"start_date": "2025-01-01",
"end_date": "2025-03-31",
"rates": {
"BRENT_CRUDE": {
"2025-01-02": 76.30,
"2025-01-03": 75.90
},
"TTF_GAS": {
"2025-01-02": 46.80,
"2025-01-03": 47.10
}
},
"frequencies": {
"BRENT_CRUDE": "daily",
"TTF_GAS": "daily"
},
"currencies": {
"BRENT_CRUDE": "USD",
"TTF_GAS": "EUR"
}
}

Field Explanation: This response provides daily prices for Brent Crude and TTF Gas over the specified date range, enabling users to analyze trends and fluctuations.

4. GET /fluctuation

This endpoint calculates the start and end values, absolute change, and percentage change over a specified period.

Key Params: start (required), end (required), symbols (required), base (optional)

curl -G https://energy-api.com/api/v1/fluctuation \
--data-urlencode "start=2025-01-01" \
--data-urlencode "end=2025-03-31" \
--data-urlencode "symbols=BRENT_CRUDE,TTF_GAS" \
--data-urlencode "api_key=YOUR_API_KEY"

JSON Response:

{
"success": true,
"fluctuations": {
"BRENT_CRUDE": {
"start_value": 76.30,
"end_value": 75.90,
"change": -0.40,
"change_pct": -0.52
},
"TTF_GAS": {
"start_value": 46.80,
"end_value": 47.10,
"change": 0.30,
"change_pct": 0.64
}
}
}

Field Explanation: This response provides insights into the price fluctuations for Brent Crude and TTF Gas, including the start and end values, absolute change, and percentage change, which are crucial for traders and analysts.

Real-World Use Cases

Energy API can be utilized in various real-world applications. Here are three concrete examples:

• Price Alert System: Developers can build a price alert system that notifies users when energy prices reach a certain threshold. By using the /latest endpoint, the application can continuously monitor prices and send alerts via email or SMS when specific conditions are met.
• ESG Dashboard: Sustainability teams can create dashboards that visualize carbon intensity and emissions data. By leveraging the /carbon-intensity and /emissions/latest endpoints, teams can track their carbon footprint and make informed decisions to improve their ESG performance.
• Cost Calculator: Utilities can develop cost calculators that estimate monthly electricity costs based on usage patterns. By utilizing the /cost-estimate endpoint, users can input their expected kWh usage and receive an estimate of their wholesale electricity costs.

FAQ

How often does the TTF gas price update?

The TTF gas price updates daily, reflecting the most recent market data available from the EEX. This ensures that users have access to the latest pricing information for their analyses and trading decisions.

Can I get historical energy prices going back 5 years?

Yes, Energy API provides historical data for various symbols, allowing users to access prices going back several years. This is particularly useful for trend analysis and historical comparisons.

Does the API support multiple currencies?

Yes, Energy API supports multiple currencies across different commodities. Users can specify their desired base currency in their requests to receive prices in that currency.

Conclusion

In conclusion, Energy API is a powerful tool that empowers energy communities by providing seamless access to reliable market data. By aggregating data from multiple trusted sources into a single, normalized REST API, developers can save time and resources while building innovative solutions for the energy sector. Whether you're a trader looking to analyze price trends, a sustainability team aiming to track carbon emissions, or a utility developing cost calculators, Energy API offers the flexibility and reliability you need.

Don't let the complexities of energy data hold you back. Try Energy API for free today and unlock the potential of your energy solutions!