Empowering ESG Reporting with Real-Time Data: Leveraging Energy API for Transparency and Accuracy

Introduction

In today's fast-paced energy market, the demand for accurate and timely data has never been higher. Companies across various sectors are increasingly focusing on Environmental, Social, and Governance (ESG) reporting, which requires reliable data to ensure transparency and accuracy. However, many developers and data engineers face significant challenges when trying to aggregate energy market data from disparate sources. The traditional methods of scraping government portals or stitching together incompatible formats can be time-consuming and error-prone.

This is where Energy API comes into play. By providing a unified REST API that aggregates wholesale energy market data from trusted sources, Energy API empowers developers to access real-time data effortlessly. This blog post will explore how leveraging Energy API can streamline ESG reporting and enhance data accuracy, ultimately leading to better decision-making in the energy sector.

Why Energy API

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

• Unified Data Format: Energy API normalizes data from multiple sources such as OMIE, ENTSO-E, and EIA into a single JSON interface. This eliminates the need for developers to deal with different formats, schedules, and naming conventions, significantly reducing the time spent on data integration.
• Comprehensive Coverage: With over 39 symbols across six commodity categories—electricity, natural gas, crude oil, coal, carbon allowances, and grid carbon intensity—Energy API provides a one-stop solution for all energy data needs. Developers can query multiple commodities in a single API call, enhancing efficiency.
• Robust Endpoints: Energy API offers 16 endpoints that cover a wide range of functionalities, including spot prices, historical series, intraday curves, and cost estimates. This extensive coverage allows developers to build sophisticated applications without the hassle of managing multiple data sources.
• Rapid Development: The consistent JSON schema across all commodities means that developers can ship features in hours rather than weeks of ETL work. This accelerates the development cycle and allows teams to focus on building value-added features rather than data wrangling.

Quick Start

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

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

To make your first request, you will need to include the 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:

• success: Indicates whether the API call was successful.
• date: The date of the data retrieved.
• base: The base currency for the rates.
• rates: Contains the latest prices for the requested symbols.
• dates: The dates corresponding to each symbol's price.
• currencies: The currency in which each symbol's price is quoted.

Core Endpoints

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:

• rates: Contains the latest prices for the requested symbols.
• currencies: Indicates the currency for each symbol's price.

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:

• rates: Contains the prices for the requested symbols on the specified date.
• currencies: Indicates the currency for each symbol's price.

3. GET /timeseries

This endpoint retrieves historical series between two dates, 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:

• rates: Contains historical prices for the requested symbols, keyed by date.
• frequencies: Indicates the frequency of the data (e.g., daily).

4. GET /fluctuation

This endpoint provides start/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=2025-01-31" \
--data-urlencode "symbols=BRENT_CRUDE" \
--data-urlencode "api_key=YOUR_API_KEY"

JSON Response:

{
"success": true,
"fluctuation": {
"BRENT_CRUDE": {
"start_value": 76.30,
"end_value": 75.90,
"change": -0.40,
"change_pct": -0.52
}
}
}

Field Explanation:

• start_value: The price at the beginning of the period.
• end_value: The price at the end of the period.
• change: The absolute change in price.
• change_pct: The percentage change in price.

Real-World Use Cases

Energy API can be leveraged in various applications to enhance decision-making and operational efficiency. Here are three concrete examples:

• Price Alert System: Developers can build a price alert system that notifies users when energy prices exceed a certain threshold. By utilizing the /latest endpoint, the system can continuously monitor prices for multiple commodities and send alerts via email or SMS when significant changes occur.
• ESG Dashboard: Companies focused on sustainability can create an ESG dashboard that visualizes carbon intensity and energy prices. By querying the /carbon-intensity and /latest endpoints, developers can provide real-time insights into their carbon footprint and energy costs, helping organizations meet their sustainability goals.
• Cost Calculator: A cost calculator can be developed to estimate monthly energy expenses based on current prices. By using the /cost-estimate endpoint, developers can allow users to input their expected energy consumption and receive an estimate of their monthly costs, aiding in budgeting and financial planning.

FAQ

How often does the TTF gas price update?

The TTF gas price updates daily, reflecting the most recent market conditions. Developers can use the /latest endpoint to retrieve the most current price at any time.

Can I get historical energy prices going back 5 years?

Yes, Energy API allows you to access historical prices for various commodities. You can use the /historical and /timeseries endpoints to retrieve data for specific dates or ranges, making it easy to analyze trends over time.

Does the API support multiple currencies?

Absolutely! Energy API supports multiple currencies for different commodities. When making requests, you can specify the base currency, and the API will return prices in the requested currency, ensuring flexibility for developers working in different markets.

Conclusion

In conclusion, Energy API is a powerful tool for developers and data engineers looking to streamline their access to wholesale energy market data. By providing a unified REST API that aggregates data from trusted sources, Energy API eliminates the complexities associated with traditional data integration methods. With its comprehensive coverage, robust endpoints, and rapid development capabilities, Energy API empowers organizations to enhance their ESG reporting and make informed decisions based on real-time data.

Don't let the challenges of data aggregation hold you back. Try Energy API for free today and experience the benefits of seamless access to energy market data. Start building your applications with confidence and unlock the potential of real-time energy insights!