Integrating IoT with Energy API: Unlocking New Possibilities for Smart Utility Management

Introduction

In today's rapidly evolving energy landscape, the integration of Internet of Things (IoT) technologies with energy data APIs is transforming how utilities manage resources and respond to market dynamics. The challenge lies in accessing reliable, real-time data from various sources, which often come in incompatible formats. Developers and data engineers face the daunting task of scraping government portals or stitching together disparate datasets, leading to inefficiencies and increased operational costs.

This blog post explores how integrating IoT with the Energy API can unlock new possibilities for smart utility management. By leveraging a unified REST API that aggregates wholesale energy market data, developers can streamline their workflows, enhance decision-making, and ultimately drive sustainability initiatives. We will delve into the features of the Energy API, provide practical examples, and demonstrate how to get started with this powerful tool.

Why Energy API

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

• One Unified Interface: The Energy API consolidates data from multiple sources, including OMIE, ENTSO-E, and EIA, into a single, normalized REST interface. This eliminates the need for developers to manage different formats and schedules, 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—the API provides extensive market data. Developers can access multiple commodities in a single API call, enhancing efficiency and reducing complexity.
• Rapid Development: The Energy API offers 16 endpoints that cover a wide range of functionalities, from spot prices to historical series and fluctuation analysis. This allows developers to ship features in hours rather than weeks, accelerating time-to-market for new applications.
• Trusted Data Providers: The API aggregates data from reputable sources, ensuring that users receive accurate and reliable information. This trustworthiness is crucial for developers building applications that rely on real-time market data.

Quick Start

To get started with the Energy API, you'll need to familiarize yourself with the base URL and authentication method. The base URL for the API is:

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

Authentication is done via the api_key query parameter. Here’s how to make your first request to retrieve the latest prices for a set of symbols:

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"

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,
"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"
}
}

In this response, the success field indicates whether the request was successful, while the rates object provides the latest prices for the requested symbols. Each symbol's price is accompanied by its respective currency, allowing for easy integration into applications.

Core Endpoints

1. GET /latest

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

Key Parameters:

• symbols (required): A comma-separated list of symbols to retrieve prices for.
• base (optional): A currency filter for the response.

cURL Snippet:

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 each symbol, making it easy for developers to display real-time market data in their applications.

2. GET /historical

This endpoint retrieves 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 to retrieve prices for.
• base (optional): A currency filter for the response.

cURL Snippet:

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"
}
}

The rates object provides historical prices, which are essential for trend analysis and reporting.

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 to retrieve prices for.
• base (optional): A currency filter for the response.

cURL Snippet:

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"
}
}

The rates object contains historical prices keyed by date, which is invaluable for developers looking to visualize trends over time.

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 to retrieve fluctuation data for.
• base (optional): A currency filter for the response.

cURL Snippet:

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
}
}
}

The fluctuations object provides insights into price changes over time, which can be critical for trading strategies and risk management.

Real-World Use Cases

1. 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 application can continuously monitor prices and send alerts via email or SMS when specific conditions are met.

2. ESG Dashboard

With growing emphasis on sustainability, developers can create an Environmental, Social, and Governance (ESG) dashboard that visualizes carbon intensity data. By leveraging the /carbon-intensity endpoint, users can track emissions in real-time and make informed decisions to reduce their carbon footprint.

3. Cost Calculator

A cost calculator can help businesses estimate their monthly energy expenses based on current market prices. By using the /cost-estimate endpoint, developers can provide users with a simple interface to input their energy consumption and receive an estimated cost based on the latest prices.

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, the Energy API allows you to access historical prices for various symbols. By using the /historical and /timeseries endpoints, developers can retrieve data for specific dates or ranges, enabling comprehensive analysis.

Does the API support multiple currencies?

Absolutely! The Energy API supports multiple currencies, allowing developers to specify a base currency for their requests. This flexibility ensures that users can view prices in their preferred currency.

Conclusion

Integrating IoT with the Energy API presents a transformative opportunity for smart utility management. By leveraging a unified data source, developers can streamline their workflows, enhance decision-making, and contribute to sustainability initiatives. The comprehensive features and capabilities of the Energy API empower developers to build innovative applications that address real-world challenges in the energy sector.

Ready to unlock the potential of energy data? Start exploring the Energy API today and see how it can revolutionize your approach to energy management. Try Energy API for free and experience the benefits firsthand!