Recent Releases of nempy
nempy - v3.0.0
Updates to allow for the dispatch of bidirectional units. Bidirectional units began operating in the NEM in August 2024.
These updates required breaking changes to the Nempy API, so the new release is new major version 3.0.0.
The main functionality to be affected is the ramp rates, and FCAS regulation joint ramping constraints.
Energy Systems - Global and Regional Energy System Models
- Python
Published by nick-gorman 3 months ago
nempy - v2.2.0
Fixes a few issues:
- specifies version 1.16rc0 for mip-python (solver interface). This is a pre-release of mip-python so not ideal, but the other recent version are having install issues across mac, linux, and windows. Version 1.16rc0 only seems to be having issues on mac so it the best option for now, but we will update when a better one is available.
- Changes implementation of solver interface to avoid a pandas warning
- Corrects some errors in the bidstack example.
- Bumps default requests version in poetry.lock (security fix)
- Changes python version in poetry to ">=3.8,<3.13"
Energy Systems - Global and Regional Energy System Models
- Python
Published by nick-gorman 11 months ago
nempy - v2.1.0
This update to Nempy:
- Adds the very fast frequency raise and lower market. These use the names lower_1s and raise_sec1 in the nempy inputs tables. Thanks @mlee94 for pull request #20 which added this functionality.
- Removes some redundant reloading of input data. Thank @yueXiao2 for PR #16
- Bumps urllib3 from 2.0.4 to 2.0.6 which resolves a security issue in urllib, see #21
- Fixes some typos in examples
Energy Systems - Global and Regional Energy System Models
- Python
Published by nick-gorman over 1 year ago
nempy - v2.0.1
Adds functionality for calculating constraint RHS values and implementing the Basslink switch run, see https://nempy.readthedocs.io/en/latest/historical.html#module-nempy.historical_inputs.rhs_calculator, and https://nempy.readthedocs.io/en/latest/examples.html#detailed-recreation-of-historical-dispatch-with-basslink-switch-run respectively.
Fixes errors in the implementation of fast start unit ramp rates and joint regulation and ramping constraints.
Energy Systems - Global and Regional Energy System Models
- Python
Published by nick-gorman over 1 year ago
nempy - v1.1.5
Fix the bug that v1.1.4 was attempting to fix, with not being about to do over-constrained dispatch re-runs without both FCAS and generic constraints.
Additionally, fix a bug with the XMLCacheManager where downloads of XML files would randomly fail, have implemented functionality to re-attempt the download after waiting 100 seconds which appears to work well.
Energy Systems - Global and Regional Energy System Models
- Python
Published by nick-gorman almost 3 years ago
nempy - v1.1.3
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Fix issue (#6) with AEMO retiring table BIDDAYOFFER_D. Thanks @MattAmos for identifying this. The was fix was done by instead sourcing the price bid data from the xml NEMDE input files published by AEMO. An example has been added to the docs to show Nempy working on data from Jan 2022: https://nempy.readthedocs.io/en/latest/examples.html#nempy-performance-on-recent-data-jan-2022
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Fix issue (#7) in older data sets from AEMO there was an edge case where no semi scheduled units were providing FCAS and this was causing the input preparation functionality to break. Thanks @andrewhn for raising this issue and suggesting a fix (which I've implemented in this release). An example has been added to the docs to show Nempy working on data from Jan 2015, tests haven't been run on any data earlier to this date. https://nempy.readthedocs.io/en/latest/examples.html#nempy-performance-on-older-data-jan-2015
Energy Systems - Global and Regional Energy System Models
- Python
Published by nick-gorman about 3 years ago
nempy - v1.1.0
Add the populate_by_day method to the historical_inputs.xml_cache.XMLCacheManager class, the method allows the the cache to be populated with historical data in daily increments.
Energy Systems - Global and Regional Energy System Models
- Python
Published by nick-gorman over 3 years ago
nempy -
Corrected the project README file by removing the section stating that there is no stable release.
Energy Systems - Global and Regional Energy System Models
- Python
Published by nick-gorman over 4 years ago
nempy -
The first stable release of nempy!
Energy Systems - Global and Regional Energy System Models
- Python
Published by nick-gorman over 4 years ago