A Tessen is a Japanese hand fans used in warfare by the Samurai class of feudal Japan.
This repo is not about Samurai though.
Tessen is a tool for visualising energy and reserve offers. You want to do this because energy and reserve are co-optimised and the interaction between the markets can lead to some quite strange effects occurring. This is primarily due to the inverse bathtub set of constraints which limit the simultaneous dispatch of both energy and reserve.
It is currently in a working, but could be prettier state. Note that this library is quite tightly coupled to the OfferPandas and you will need a recent version of this for the functionality to work. OfferPandas is a custom pandas DataFrame for handling energy and reserve market data offers including improved metadata and filtering functionality.
To see how to use Tessen in a simplified circumstance check out the Example iPython Notebook
An example of a Tessen is below:
TWDSR can currently be implemented although the behaviour is not quite right. As background a TWDSR dispatched unit cannot be offered for energy as no water is running through the turbine. But it can be offered as spinning reserve. How TWDSR fits into the wider picture of a plot like the Tessen fan curve is still to be determined.
Interruptible load is planned to be included in the next update.
- Free software: BSD license
- Documentation: http://Tessen.rtfd.org.
See the Enhancement Features page on Github.