purchased binary variable isn't linked to energy_cap if energy_cap_max/_min/_equals isn't defined

[brynpickering]

What happened?

If the purchase cost is defined but some limit on energy_cap isn't defined, then there is no constraint to link purchase with energy_cap. This means that you get zeroes across the board for purchase even when technologies that are using this binary decision variable have a non-zero energy_cap.

The straightforward workaround is to set energy_cap_max to some value that is akin to bigM: large enough not to impact model results but small enough not to cause numerical trouble.

Which operating systems have you used?

• macOS
• Windows
• Linux

Version

v0.6.10

Relevant log output

No response