Designing User-Friendly Dashboards: Visualizing Energy Data with Energy API

Introduction

In today's fast-paced energy market, the ability to access and visualize real-time data is crucial for making informed decisions. Energy traders, data engineers, and sustainability teams face the challenge of navigating a complex landscape filled with disparate data sources, each with its own format and update schedule. This fragmentation can lead to inefficiencies, increased operational costs, and missed opportunities. The need for a unified solution that aggregates and normalizes energy market data has never been more pressing.

Enter Energy API, a powerful REST API designed to streamline access to wholesale energy market data. By providing a single, normalized interface for various commodities—including electricity, natural gas, crude oil, coal, carbon allowances, and grid carbon intensity—Energy API eliminates the pain of scraping government portals or stitching together incompatible formats. In this blog post, we will explore how to design user-friendly dashboards that visualize energy data using Energy API, highlighting its key features, endpoints, and practical use cases.

Why Energy API

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

• **Unified Data Model**: With Energy API, developers can access data from multiple sources—such as OMIE, ENTSO-E, and EIA—through a single REST interface. This eliminates the need for extensive ETL (Extract, Transform, Load) processes, allowing teams to ship features in hours instead of weeks.
• **Comprehensive Coverage**: The API supports over 39 symbols across six commodity categories, providing a wealth of data for analysis. Whether you need spot prices, historical series, or day-ahead forecasts, Energy API has you covered.
• **Consistent JSON Schema**: Every commodity is delivered in the same JSON format, simplifying integration and reducing the learning curve for developers. This consistency allows teams to focus on building applications rather than dealing with varying data structures.
• **Trusted Data Providers**: Energy API aggregates data from reputable sources, ensuring that users receive accurate and timely information. This reliability is essential for making informed trading and investment decisions.

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:

• success: Indicates whether the request was successful.
• date: The date of the data returned.
• base: The base currency for the rates.
• rates: An object containing the latest prices for the requested symbols.
• dates: The specific dates for each symbol's price.
• currencies: The currency in which each symbol's price is quoted.

Core Endpoints

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

1. GET /latest

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

Key Parameters:

• symbols (required): A comma-separated list of symbols.
• base (optional): Currency filter.
• category (optional): Category of the symbols.

cURL Example:

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 Parameters:

• date (required): The date in YYYY-MM-DD format.
• symbols (required): A comma-separated list of symbols.
• base (optional): Currency filter.

cURL Example:

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:

• date: The date for which the historical prices are returned.
• rates: Contains the historical prices for the requested symbols.

3. GET /timeseries

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

Key Parameters:

• start (required): The start date in YYYY-MM-DD format.
• end (required): The end date in YYYY-MM-DD format.
• symbols (required): A comma-separated list of symbols.
• base (optional): Currency filter.

cURL Example:

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:

• start_date: The start date for the time series data.
• end_date: The end date for the time series data.
• rates: Contains historical prices keyed by date for each symbol.

4. GET /fluctuation

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

Key Parameters:

• start (required): The start date in YYYY-MM-DD format.
• end (required): The end date in YYYY-MM-DD format.
• symbols (required): A comma-separated list of symbols.
• base (optional): Currency filter.

cURL Example:

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,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:

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

Real-World Use Cases

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

1. 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 specified conditions are met.

2. ESG Dashboard

For sustainability teams, creating an ESG dashboard that visualizes carbon intensity data is essential. By utilizing the /carbon-intensity endpoint, teams can track emissions in real-time and assess their impact on sustainability goals.

3. Cost Calculator

Energy traders can develop a cost calculator that estimates monthly wholesale electricity costs based on the latest prices. By using the /cost-estimate endpoint, the application can provide users with accurate estimates based on their consumption patterns.

FAQ

How often does the TTF gas price update?

The TTF gas price updates daily, reflecting the most recent market conditions. Users can access the latest price using the /latest endpoint.

Can I get historical energy prices going back 5 years?

Yes, Energy API allows users to retrieve historical prices for various symbols. The /historical and /timeseries endpoints can be used to access past data, depending on the specific requirements.

Does the API support multiple currencies?

Absolutely! Energy API supports multiple currencies, allowing users to filter data based on their preferred currency using the base parameter in requests.

Conclusion

Designing user-friendly dashboards that visualize energy data is made significantly easier with the capabilities of Energy API. By providing a unified interface for accessing a wide range of energy market data, developers can focus on building impactful applications without the hassle of dealing with disparate data sources.

Whether you are building a price alert system, an ESG dashboard, or a cost calculator, Energy API offers the tools you need to succeed. Start exploring the possibilities today and see how Try Energy API for free can transform your approach to energy data.