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Set investment variable types to none as default.

Type: improvementImprove something that already existsImprove something that already exists

Type: new featureAdd something that doesn't exist yetAdd something that doesn't exist yet

Zone: data & importStuff going in and how it's processedStuff going in and how it's processed

Zone: model implementationHow the formulation is implemented in codeHow the formulation is implemented in code

Status: Open.

Feature

#1302 In spine-tools/SpineOpt.jl;

· Tasqu opened on Apr 27, 2026

Consider making it possible to use ramping capabilities without using online variables

Status: Open.

#1301 In spine-tools/SpineOpt.jl;

· gnawin opened on Apr 21, 2026

Possibly disable crossover for dual calculation

Status: Open.

#1297 In spine-tools/SpineOpt.jl;

· DillonJ opened on Apr 14, 2026

Allow multiple reports with outputs at different temporal resoltutions

good first issueGood for newcomersGood for newcomers

Type: improvementImprove something that already existsImprove something that already exists

Status: Open.

#1281 In spine-tools/SpineOpt.jl;

· DillonJ opened on Feb 19, 2026

First timestep imbalance

Status: Open.

#1279 In spine-tools/SpineOpt.jl;

· RuilongWang1215 opened on Feb 4, 2026

Add fixed operational costs (FOM)

Status: Open.

Feature

#1277 In spine-tools/SpineOpt.jl;

· Mastomaki opened on Jan 28, 2026

Add a new parameter to control if the connection constraint should be written in the highest or lowest resolution per connection

good first issueGood for newcomersGood for newcomers

Status: Open.

#1275 In spine-tools/SpineOpt.jl;

· datejada opened on Dec 9, 2025

[bug]: Having the same block twice one in a temporal block with has_free_start = true and another with has_free_start = false doesn't work with unit_lifetime constraint

Status: Open.

#1273 In spine-tools/SpineOpt.jl;

· aporrasc opened on Nov 11, 2025

Improved gas flow formulations

Status: Open.

#1272 In spine-tools/SpineOpt.jl;

· nhniina opened on Nov 4, 2025

time-series with ignore_year=true but spanning multiple years only preserves the last

Status: Open.

#1256 In spine-tools/SpineOpt.jl;

· manuelma opened on Sep 25, 2025

Adding min up/down time artificially results in more constrained problem

Status: Open.

#1255 In spine-tools/SpineOpt.jl;

· manuelma opened on Sep 24, 2025

Define representative periods mapping relative to the model start

Status: Open.

#1250 In spine-tools/SpineOpt.jl;

· datejada opened on Aug 19, 2025