An API for examing the EIA Monthly Energy Review datasets.
Python Library for EIA Data Examination & Exhibition
A tool for creating visuals from historical energy data (e.g. the EIA monthly energy review).
This tool is designed to provide insightful, aesthetic and more flexible visualizations of the Energy Information Administration (EIA) monthly energy review datasets. The datasets contain information about the sources of energy Americans have relied on for power since the middle of the 20th century. The datasets begin in 1949 with annual energy production, consumption, import, and export values, and extend up until the present. Monthly energy datapoints are reported starting in 1973.
The basic energy sources are reported in the following groups:
- Natural Gas
The data is published monthly on the EIA's website, and as of March 31st, 2019 records were provided up through December 2018. This package also includes data up to date through the end of 2018, though more recent data can be downloaded using an included script.
All reported values are in units of quadrillion british thermal units (1.0E15 BTU). Be aware that the datasets may provide more precision than is published in the PDF reports.
pyleiades is hosted through the Python Package Index (PyPI) and can be easily installed using pip. From the command line, run
$ pip install pyleiades
The module requires a recent version of Python 3 (3.6 or greater), pandas, and matplotlib, among others. If you run into trouble running the package, try using the Anaconda environment provided in this repo. Install the environment using the command
$ conda env create -f environment.yml
and activate the environment by issuing the command
$ conda activate pyleiades
An archive of EIA Monthly Energy Review datasets is kept in the
pyleiades data repository.
This may not include the most up to date information, and so the package comes with a script to update the available data.
Once the package is installed, run
from the command line to download the most recent data from the EIA website.
Using the API
The API is built around two main object types—the
To access the EIA data directly for a certain energy type, use the
For example, the energy consumption data for all renewable energy sources can be accessed with:
>>> from pyleiades import Energy >>> renewables = Energy('renewable')
renewables object stores the complete consumption history within the
energy_data dataframe attribute.
>>> renewables.energy_data date_code value 6220 194913 2.973984 6221 195013 2.977718 6222 195113 2.958464 6223 195213 2.940181 ...
date_code column gives the reporting date (in the format
YYYYMM, where the month code 13 indicates a yearly total) and the
value column gives the consumption amounts (in QBTU) for each date.
In the example above, the first four entries of the
energy_data dataframe are the renewable energy yearly consumption totals for 1949 through 1952.
Energy consumption values are the default, however the
Energy objects can also be used to access production, import and export statistics.
The type of statistic can be selected using the
stat_type keyword argument.
>>> renewables = Energy('renewable', stat_type='production') >>> renewables.energy_data date_code value 6220 194913 1.549262 6221 195013 1.562307 6222 195113 1.534669 6223 195213 1.474369
Perhaps more interesting than the complete history, however, are more sophisticated features of the data, like interval specific totals and extremes.
totals method of an
Energy object allows the data to be totaled at a specified interval—either monthly, yearly, or cumulatively.
>>> renewables.totals('monthly') value date 197301 0.403981 197302 0.360900 197303 0.400161 197304 0.380470
Notice that here the monthly data only goes back as far as 1973 (though the
energy_data attribute showed yearly data for renewable energy dating back to 1949).
By default, the
totals method selects the entire range of available data.
This behavior can be overriden by providing start and end dates for some interval as keyword arguments.
To only get monthly renewable energy data from 2000 to 2010, this would be:
>>> renewables.totals(freq='monthly', start_date='200001', end_date='200912') value date 200001 0.505523 200002 0.498993 200003 0.558474 200004 0.567147
To get extremes over a dataset interval, use the
Visual allows the package to create plots of several energy types.
The initialization parameters for a
Visual are similar to those for an
Visual can accept a single energy type or a list of energy types, optionally followed by a type of statistic (consumption by default).
visual = Visual(['coal', 'nuclear', 'renewable'])
This visual object's methods can then be used to generate any of a variety of visuals.
The syntax is again similar to that of the
Energy object, however it includes a subject argument corresponding to a method of the
Here's an example that generates a line graph of energy totals:
visual.linegraph(subject='totals', freq='monthly', start_date='1970')
Run the very simple installed script
pyleiades-demo.py to see the package in action.
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