Geographical Information Systems and Energy API: Enhancing Renewable Site Selection for Utilities

Introduction

As the world shifts towards renewable energy sources, utilities face the challenge of selecting optimal sites for energy generation. This process requires a comprehensive understanding of geographical data, energy market trends, and environmental factors. Traditional methods of site selection often involve cumbersome data collection processes, including scraping government portals and dealing with incompatible data formats. This is where Geographical Information Systems (GIS) and the Energy API come into play, providing a streamlined solution for utilities to enhance their renewable site selection.

The integration of GIS with the Energy API allows developers and data engineers to access a wealth of normalized energy market data, enabling them to make informed decisions quickly. By leveraging the capabilities of the Energy API, utilities can efficiently analyze various factors such as energy prices, carbon intensity, and historical trends, all from a single, unified interface. This blog post will explore how the Energy API can enhance renewable site selection for utilities, providing practical examples and technical insights.

Why Energy API

The Energy API stands out as a powerful tool for developers and energy professionals for several reasons:

• Unified Data Access: The Energy API aggregates data from multiple trusted sources, including OMIE, ENTSO-E, and EIA, into a single RESTful interface. This eliminates the need for developers to stitch together disparate data formats and schedules, saving significant time and effort.
• Comprehensive Market Coverage: With over 39 symbols across six commodity categories—electricity, gas, oil, coal, carbon, and carbon intensity—the Energy API provides a holistic view of the energy market. Developers can query multiple commodities in a single API call, enhancing their analytical capabilities.
• Rapid Development: The consistent JSON schema across all endpoints allows developers to integrate energy data into their applications in hours, not weeks. This accelerates the development process and enables quicker time-to-market for new features and products.
• Real-Time and Historical Data: The Energy API offers both real-time and historical data, allowing utilities to analyze trends over time and make data-driven decisions regarding site selection and energy generation strategies.

Quick Start

To get started with the Energy API, you will need to know the base URL and how to authenticate your requests. The base URL for the Energy 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 contains the latest prices for the requested symbols.

Core Endpoints

1. GET /latest

This endpoint retrieves the most recent prices 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 commodities, which can be crucial for making informed decisions about energy generation and site selection.

2. GET /historical

This endpoint provides historical 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 endpoint is particularly useful for analyzing historical trends in energy prices, which can inform site selection strategies based on past performance.

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"
}
}

The rates object contains historical prices keyed by date, allowing developers to visualize trends over time, which is essential for strategic planning in renewable energy site selection.

4. GET /carbon-intensity

This endpoint provides grid carbon intensity in gCO2eq/kWh by country, which is crucial for assessing the environmental impact of energy generation.

Key Params: country (ISO-2, required), base (optional)

curl -G https://energy-api.com/api/v1/carbon-intensity \
--data-urlencode "country=DE" \
--data-urlencode "api_key=YOUR_API_KEY"

JSON Response:

{
"success": true,
"country": "DE",
"carbon_intensity": {
"value": 200,
"unit": "gCO2eq/kWh"
}
}

The carbon_intensity field provides the carbon emissions associated with electricity generation in Germany, enabling utilities to make environmentally conscious decisions when selecting renewable energy sites.

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, they can fetch real-time prices for various commodities and trigger alerts based on user-defined criteria.

2. ESG Dashboard

Utilities can create an Environmental, Social, and Governance (ESG) dashboard that visualizes carbon intensity and energy prices. By leveraging the /carbon-intensity and /latest endpoints, they can provide stakeholders with insights into their environmental impact and market trends.

3. Cost Calculator

A cost calculator can be developed to estimate monthly wholesale electricity costs based on user input. By using the /cost-estimate endpoint, developers can provide users with a simple interface to calculate their expected energy expenses 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. 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, the Energy API provides historical data for various commodities, allowing users to access prices going back several years. This is particularly useful for trend analysis and strategic planning.

Does the API support multiple currencies?

Yes, the Energy API supports multiple currencies, allowing users to specify their preferred currency when making requests. This flexibility is essential for international users and those dealing with cross-border energy transactions.

Conclusion

In conclusion, the integration of Geographical Information Systems with the Energy API offers a powerful solution for utilities seeking to enhance their renewable site selection processes. By providing access to a wealth of normalized energy market data, the Energy API empowers developers and data engineers to make informed decisions quickly and efficiently.

With features such as real-time and historical data, comprehensive market coverage, and a unified interface, the Energy API stands out as the fastest path from zero to production energy data. Whether you are building a price alert system, an ESG dashboard, or a cost calculator, the Energy API provides the tools you need to succeed in the evolving energy landscape.

Ready to get started? Try Energy API for free and unlock the potential of your renewable energy projects today!