Building ESG Reporting Dashboards with Energy API: Streamlining Sustainability Metrics for Corporate Teams

Introduction

In today's corporate landscape, sustainability is no longer just a buzzword; it has become a critical component of business strategy. Companies are increasingly held accountable for their environmental impact, and as a result, the demand for accurate and timely Environmental, Social, and Governance (ESG) reporting has surged. However, gathering the necessary data to create comprehensive ESG reports can be a daunting task. Many organizations struggle with disparate data sources, inconsistent formats, and the complexities of integrating various energy market data into a cohesive reporting framework.

This is where the Energy API comes into play. By providing a unified REST API that aggregates wholesale energy market data from trusted sources, Energy API simplifies the process of collecting and reporting on sustainability metrics. In this blog post, we will explore how to build ESG reporting dashboards using the Energy API, streamlining the way corporate teams manage and report their sustainability metrics.

Why Energy API

The Energy API stands out in the crowded field of data aggregation services for several reasons:

• Unified Data Source: Instead of dealing with multiple data providers like OMIE, ENTSO-E, and EIA, Energy API offers a single, normalized REST interface. This means developers can access a wide range of energy market data without the hassle of scraping government portals or stitching together incompatible formats.
• Comprehensive Coverage: With over 39 symbols across six commodity categories—electricity, natural gas, crude oil, coal, carbon allowances, and grid carbon intensity—developers can retrieve all the data they need in one place. This reduces the time spent on data integration and allows teams to focus on analysis and reporting.
• Rapid Development: The Energy API provides a consistent JSON schema for every commodity, enabling developers to ship features in hours rather than weeks. This rapid development cycle is crucial for teams looking to stay agile in a fast-paced market.
• Trusted Data Providers: The API aggregates data from reputable sources such as OMIE, ENTSO-E, EIA, and FRED, ensuring that the information is reliable and up-to-date. This trustworthiness is essential for companies that need to present accurate ESG reports to stakeholders.

Quick Start

Getting started with the 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

To effectively build ESG reporting dashboards, developers will find several core endpoints particularly useful. Below are four key endpoints that can help streamline the process of gathering and reporting sustainability metrics:

1. GET /latest

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

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

Example cURL request:

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"

Example 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"
}
}

Key fields explained:

• rates: Contains the latest prices for the requested symbols, which can be used for real-time reporting.
• currencies: Indicates the currency for each rate, allowing for easy conversion if necessary.

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)

Example cURL request:

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"

Example 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"
}
}

Key fields explained:

• date: The date for which the historical prices are retrieved.
• rates: Contains the historical prices for the requested symbols, which is essential for trend analysis in ESG reporting.

3. GET /timeseries

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

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

Example cURL request:

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"

Example 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"
}
}

Key fields explained:

• start_date: The beginning of the date range for the historical data.
• end_date: The end of the date range for the historical data.
• rates: Contains the historical prices for each symbol, allowing for detailed trend analysis.

4. GET /fluctuation

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

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

Example cURL request:

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"

Example 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
}
}
}

Key fields explained:

• fluctuations: Contains the start and end values for each symbol, along with the absolute and percentage changes, which are crucial for understanding market volatility.

Real-World Use Cases

Developers can leverage the Energy API to build various applications that enhance ESG reporting and sustainability metrics. Here are three concrete examples:

1. Price Alert System

By utilizing the /latest endpoint, developers can create a price alert system that notifies corporate teams when energy prices exceed or fall below certain thresholds. This allows teams to make informed decisions regarding energy procurement and sustainability initiatives.

2. ESG Dashboard

Using the /timeseries and /historical endpoints, developers can build comprehensive ESG dashboards that visualize historical energy prices and trends. This data can be crucial for stakeholders looking to understand the company's environmental impact over time.

3. Cost Calculator

By implementing the /cost-estimate endpoint, developers can create a simple monthly wholesale electricity cost calculator. This tool can help organizations estimate their energy expenses based on current market prices, aiding in budget planning and sustainability reporting.

FAQ

How often does the TTF gas price update?

The TTF gas price updates daily, reflecting the most recent market conditions. This ensures that users have access to the latest pricing information for their reporting needs.

Can I get historical energy prices going back 5 years?

Yes, the Energy API allows you to retrieve historical prices for various symbols, enabling you to access data for up to five years, depending on the specific endpoint used.

Does the API support multiple currencies?

Absolutely! The Energy API supports multiple currencies, allowing users to specify their preferred currency for pricing data. This flexibility is essential for organizations operating in different regions.

Conclusion

Building ESG reporting dashboards has never been easier, thanks to the capabilities offered by the Energy API. By providing a unified interface for accessing reliable energy market data, the API streamlines the process of gathering and reporting sustainability metrics. Developers can quickly integrate various endpoints to create powerful applications that enhance corporate sustainability efforts.

Don't let the complexities of energy data hold your organization back. Start leveraging the Energy API today to simplify your ESG reporting and make informed decisions that positively impact your business and the environment. Try Energy API for free and see how it can transform your approach to sustainability metrics.