Energy API for Electric Vehicle Integration: Empowering Utilities and ESG Teams

Introduction

As the world shifts towards sustainable energy solutions, the integration of electric vehicles (EVs) into the energy grid presents both opportunities and challenges for utilities and ESG (Environmental, Social, and Governance) teams. The need for reliable, real-time energy market data has never been more critical. Developers and data engineers face the daunting task of aggregating data from various sources, each with its own formats and schedules, which can lead to inefficiencies and inaccuracies. This is where Energy API comes into play, offering a unified solution that simplifies access to wholesale energy market data.

With Energy API, developers can seamlessly integrate data related to electricity, natural gas, crude oil, coal, carbon allowances, and grid carbon intensity into their applications. This blog post will explore how Energy API empowers utilities and ESG teams by providing a comprehensive, normalized REST API that aggregates data from trusted sources like OMIE, ENTSO-E, ESIOS, EIA/FRED, and Ember. We will delve into the features, endpoints, and real-world use cases that demonstrate the value of this powerful tool.

Why Energy API

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

• Unified Data Access: Instead of dealing with multiple data sources, each with different formats and schedules, Energy API provides 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, gas, oil, coal, carbon, and carbon intensity—Energy API ensures that developers have access to the data they need to make informed decisions. The API covers 16 endpoints, including spot prices, historical series, and day-ahead forecasts, all in a consistent JSON schema.
• Rapid Development: By utilizing Energy API, developers can ship features in hours rather than weeks of ETL (Extract, Transform, Load) work. This accelerates the development process and allows teams to focus on building innovative solutions rather than data wrangling.
• Trusted Data Providers: Energy API aggregates data from reputable sources such as OMIE, ENTSO-E, EIA, FRED, and ESIOS. This ensures that the data is reliable and up-to-date, which is crucial for making accurate business 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 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, the success field indicates whether the request was successful, while the rates object contains the latest prices for the requested symbols. The currencies object specifies the currency for each rate.

Core Endpoints

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

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"
}
}

The rates object provides the latest prices for the requested symbols, allowing developers to quickly access current market data.

2. GET /historical

This endpoint returns 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"
}
}

This response allows developers to analyze historical price trends, which is essential for forecasting and decision-making.

3. GET /timeseries

This endpoint provides historical series between two dates, making it 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"
}
}

This response provides a detailed view of price changes over time, enabling developers to create visualizations and perform in-depth analyses.

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
}
}
}

This response provides insights into market volatility, which is crucial for traders and analysts looking to make informed decisions.

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 reach a certain threshold. By utilizing the /latest endpoint, the system can continuously monitor prices and send alerts via email or SMS when specific conditions are met.
• ESG Dashboard: ESG teams can create dashboards that visualize carbon intensity and energy consumption data. By using the /carbon-intensity and /electricity/latest endpoints, teams can track their sustainability goals and report on their progress in real-time.
• Cost Calculator: A cost calculator can be developed to estimate monthly energy expenses based on current market prices. By utilizing the /cost-estimate endpoint, developers can provide users with accurate estimates based on their energy consumption patterns.

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 informed decision-making.

Can I get historical energy prices going back 5 years?

Yes, Energy API allows users to access historical energy prices for up to five years. This data can be retrieved using the /historical and /timeseries endpoints, enabling comprehensive trend analysis.

Does the API support multiple currencies?

Absolutely! Energy API supports multiple currencies, allowing users to specify their preferred currency when making requests. This flexibility is essential for international users and businesses operating in different markets.

Conclusion

In an era where energy data is paramount for decision-making, Energy API provides a robust solution for developers, utilities, and ESG teams. By offering a unified, normalized REST API that aggregates data from trusted sources, Energy API eliminates the complexities associated with data integration and empowers users to focus on building innovative solutions.

Whether you are developing a price alert system, an ESG dashboard, or a cost calculator, Energy API equips you with the tools you need to succeed. With comprehensive coverage, rapid development capabilities, and reliable data, Energy API is the fastest path from zero to production energy data. Try Energy API for free today and unlock the potential of energy market data for your applications.