v0.7.0

EnergyModelsBase v0.7.0

Diff since v0.6.8

Merged pull requests:

• Improvement of Storage level balances (#26) (@JulStraus)
• Inclusion of both charge and discharge capacities (#29) (@JulStraus)
• Add citation for JOSS paper (#30) (@hellemo)
• Removed unncessary last(collect()) (#31) (@JulStraus)
• Add citation to JOSS paper (#32) (@hellemo)

Closed issues:

• JOSS Review (#21)
• [joss paper] remarks (#27)
• Improvement of Storage level balance and capacities (#28)