NatLabRockies · sriharisundar · Jun 12, 2026 · Jun 12, 2026 · Jun 12, 2026 · Jun 12, 2026
diff --git a/PRAS.jl/Project.toml b/PRAS.jl/Project.toml
@@ -6,7 +6,7 @@ authors = [
     "Julian Florez <Julian.Florez@nlr.gov>",
     "Gord Stephen <g.stephen@imperial.ac.uk>"
 ]
-version = "0.8.0"
+version = "0.9.0"
 
 [deps]
 PRASCapacityCredits = "2e1a2ed5-e89d-4cd3-bc86-c0e88a73d3a3"
@@ -15,9 +15,9 @@ PRASFiles = "a2806276-6d43-4ef5-91c0-491704cd7cf1"
 Reexport = "189a3867-3050-52da-a836-e630ba90ab69"
 
 [compat]
-PRASCapacityCredits = "0.8.0"
-PRASCore = "0.8.0"
-PRASFiles = "0.8.0"
+PRASCapacityCredits = "0.9"
+PRASCore = "0.9"
+PRASFiles = "0.9"
 Reexport = "1"
 julia = "1.10"
 

diff --git a/PRAS.jl/examples/pras_walkthrough.jl b/PRAS.jl/examples/pras_walkthrough.jl
@@ -35,10 +35,21 @@ sys["2"]
 
 # We can visualize a time series of the regional load in region "2":
 region_2_load = sys.regions.load[sys["2"].index,:]
-plot(sys.timestamps, region_2_load, 
-     xlabel="Time", ylabel="Region 2 load ($(powerunit))", 
+plot(sys.timestamps, region_2_load,
+     xlabel="Time", ylabel="Region 2 load ($(powerunit))",
      legend=false)
 
+# !!! tip "Get the time axis from `sys.timestamps`, don't rebuild it"
+#     The plot above passes `sys.timestamps` directly, which is exactly right:
+#     it is the true length-`N` vector of timestamps. If you need a plain
+#     `Vector` (e.g. for a `DataFrame` or to align an external series), use
+#     `collect(sys.timestamps)`. Either way, do **not** reconstruct the axis from
+#     `first(sys.timestamps)` and `length(sys.timestamps)` with a fixed timestep
+#     (e.g. `first(sys.timestamps) .+ (0:length(sys.timestamps)-1) .* timestep`):
+#     that assumes evenly spaced timestamps with no gaps, which is wrong for a
+#     non-contiguous (multi-slice) system -- it fills the gaps between slices
+#     with times that are not actually in the system.
+
 # We can find more information about all the Generators in the system by
 # retriving the `generators` in the SystemModel:
 system_generators = sys.generators

diff --git a/PRASCapacityCredits.jl/Project.toml b/PRASCapacityCredits.jl/Project.toml
@@ -1,15 +1,15 @@
 name = "PRASCapacityCredits"
 uuid = "2e1a2ed5-e89d-4cd3-bc86-c0e88a73d3a3"
 authors = ["Gord Stephen <g.stephen@imperial.ac.uk>"]
-version = "0.8.0"
+version = "0.9.0"
 
 [deps]
 Distributions = "31c24e10-a181-5473-b8eb-7969acd0382f"
 PRASCore = "c5c32b99-e7c3-4530-a685-6f76e19f7fe2"
 
 [compat]
 Distributions = "0.25"
-PRASCore = "0.7 - 0.8"
+PRASCore = "0.7 - 0.9"
 julia = "1.10"
 
 [extras]

diff --git a/PRASCore.jl/Project.toml b/PRASCore.jl/Project.toml
@@ -6,7 +6,7 @@ authors = [
     "Julian Florez <Julian.Florez@nlr.gov>",
     "Gord Stephen <g.stephen@imperial.ac.uk>"
 ]
-version = "0.8.1"
+version = "0.9.0"
 
 [deps]
 Dates = "ade2ca70-3891-5945-98fb-dc099432e06a"

diff --git a/PRASCore.jl/src/Results/DemandResponseAvailability.jl b/PRASCore.jl/src/Results/DemandResponseAvailability.jl
@@ -55,7 +55,7 @@ accumulatortype(::DemandResponseAvailability) = DRAvailabilityAccumulator
 struct DemandResponseAvailabilityResult{N,L,T<:Period} <: AbstractAvailabilityResult{N,L,T}
 
     demandresponses::Vector{String}
-    timestamps::StepRange{ZonedDateTime,T}
+    timestamps::AbstractVector{ZonedDateTime}
 
     available::Array{Bool,3}
 

diff --git a/PRASCore.jl/src/Results/DemandResponseEnergy.jl b/PRASCore.jl/src/Results/DemandResponseEnergy.jl
@@ -61,7 +61,7 @@ struct DemandResponseEnergyResult{N,L,T<:Period,E<:EnergyUnit} <: AbstractEnergy
 
     nsamples::Union{Int,Nothing}
     demandresponses::Vector{String}
-    timestamps::StepRange{ZonedDateTime,T}
+    timestamps::AbstractVector{ZonedDateTime}
 
     energy_mean::Matrix{Float64}
 

diff --git a/PRASCore.jl/src/Results/DemandResponseEnergySamples.jl b/PRASCore.jl/src/Results/DemandResponseEnergySamples.jl
@@ -57,7 +57,7 @@ accumulatortype(::DemandResponseEnergySamples) = DemandResponseEnergySamplesAccu
 struct DemandResponseEnergySamplesResult{N,L,T<:Period,E<:EnergyUnit} <: AbstractEnergyResult{N,L,T}
 
     demandresponses::Vector{String}
-    timestamps::StepRange{ZonedDateTime,T}
+    timestamps::AbstractVector{ZonedDateTime}
 
     energy::Array{Int,3}
 

diff --git a/PRASCore.jl/src/Results/Flow.jl b/PRASCore.jl/src/Results/Flow.jl
@@ -68,7 +68,7 @@ struct FlowResult{N,L,T<:Period,P<:PowerUnit} <: AbstractFlowResult{N,L,T}
 
     nsamples::Union{Int,Nothing}
     interfaces::Vector{Pair{String,String}}
-    timestamps::StepRange{ZonedDateTime,T}
+    timestamps::AbstractVector{ZonedDateTime}
 
     flow_mean::Matrix{Float64}
 

diff --git a/PRASCore.jl/src/Results/FlowSamples.jl b/PRASCore.jl/src/Results/FlowSamples.jl
@@ -64,7 +64,7 @@ accumulatortype(::FlowSamples) = FlowSamplesAccumulator
 struct FlowSamplesResult{N,L,T<:Period,P<:PowerUnit} <: AbstractFlowResult{N,L,T}
 
     interfaces::Vector{Pair{String,String}}
-    timestamps::StepRange{ZonedDateTime,T}
+    timestamps::AbstractVector{ZonedDateTime}
 
     flow::Array{Int,3}
 

diff --git a/PRASCore.jl/src/Results/GeneratorAvailability.jl b/PRASCore.jl/src/Results/GeneratorAvailability.jl
@@ -56,7 +56,7 @@ accumulatortype(::GeneratorAvailability) = GenAvailabilityAccumulator
 struct GeneratorAvailabilityResult{N,L,T<:Period} <: AbstractAvailabilityResult{N,L,T}
 
     generators::Vector{String}
-    timestamps::StepRange{ZonedDateTime,T}
+    timestamps::AbstractVector{ZonedDateTime}
 
     available::Array{Bool,3}
 

diff --git a/PRASCore.jl/src/Results/GeneratorStorageAvailability.jl b/PRASCore.jl/src/Results/GeneratorStorageAvailability.jl
@@ -56,7 +56,7 @@ accumulatortype(::GeneratorStorageAvailability) = GenStorAvailabilityAccumulator
 struct GeneratorStorageAvailabilityResult{N,L,T<:Period} <: AbstractAvailabilityResult{N,L,T}
 
     generatorstorages::Vector{String}
-    timestamps::StepRange{ZonedDateTime,T}
+    timestamps::AbstractVector{ZonedDateTime}
 
     available::Array{Bool,3}
 

diff --git a/PRASCore.jl/src/Results/GeneratorStorageEnergy.jl b/PRASCore.jl/src/Results/GeneratorStorageEnergy.jl
@@ -64,7 +64,7 @@ struct GeneratorStorageEnergyResult{N,L,T<:Period,E<:EnergyUnit} <: AbstractEner
 
     nsamples::Union{Int,Nothing}
     generatorstorages::Vector{String}
-    timestamps::StepRange{ZonedDateTime,T}
+    timestamps::AbstractVector{ZonedDateTime}
 
     energy_mean::Matrix{Float64}
 

diff --git a/PRASCore.jl/src/Results/GeneratorStorageEnergySamples.jl b/PRASCore.jl/src/Results/GeneratorStorageEnergySamples.jl
@@ -59,7 +59,7 @@ accumulatortype(::GeneratorStorageEnergySamples) = GenStorageEnergySamplesAccumu
 struct GeneratorStorageEnergySamplesResult{N,L,T<:Period,E<:EnergyUnit} <: AbstractEnergyResult{N,L,T}
 
     generatorstorages::Vector{String}
-    timestamps::StepRange{ZonedDateTime,T}
+    timestamps::AbstractVector{ZonedDateTime}
 
     energy::Array{Int,3}
 

diff --git a/PRASCore.jl/src/Results/LineAvailability.jl b/PRASCore.jl/src/Results/LineAvailability.jl
@@ -27,7 +27,7 @@ struct LineAvailability <: ResultSpec end
 struct LineAvailabilityResult{N,L,T<:Period} <: AbstractAvailabilityResult{N,L,T}
 
     lines::Vector{String}
-    timestamps::StepRange{ZonedDateTime,T}
+    timestamps::AbstractVector{ZonedDateTime}
 
     available::Array{Bool,3}
 

diff --git a/PRASCore.jl/src/Results/Shortfall.jl b/PRASCore.jl/src/Results/Shortfall.jl
@@ -137,7 +137,7 @@ struct ShortfallResult{N, L, T <: Period, E <: EnergyUnit, S} <:
        AbstractShortfallResult{N, L, T}
     nsamples::Union{Int, Nothing}
     regions::Regions
-    timestamps::StepRange{ZonedDateTime,T}
+    timestamps::AbstractVector{ZonedDateTime}
 
     eventperiod_mean::Float64
     eventperiod_std::Float64
@@ -164,7 +164,7 @@ struct ShortfallResult{N, L, T <: Period, E <: EnergyUnit, S} <:
     function ShortfallResult{N,L,T,E,S}(
         nsamples::Union{Int,Nothing},
         regions::Regions,
-        timestamps::StepRange{ZonedDateTime,T},
+        timestamps::AbstractVector{ZonedDateTime},
         eventperiod_mean::Float64,
         eventperiod_std::Float64,
         eventperiod_region_mean::Vector{Float64},

diff --git a/PRASCore.jl/src/Results/ShortfallSamples.jl b/PRASCore.jl/src/Results/ShortfallSamples.jl
@@ -79,7 +79,7 @@ accumulatortype(::S) where {
 struct ShortfallSamplesResult{N,L,T<:Period,P<:PowerUnit,E<:EnergyUnit, S} <: AbstractShortfallResult{N,L,T}
 
     regions::Regions{N,P}
-    timestamps::StepRange{ZonedDateTime,T}
+    timestamps::AbstractVector{ZonedDateTime}
 
     shortfall::Array{Int,3} # r x t x s
 

diff --git a/PRASCore.jl/src/Results/StorageAvailability.jl b/PRASCore.jl/src/Results/StorageAvailability.jl
@@ -55,7 +55,7 @@ accumulatortype(::StorageAvailability) = StorAvailabilityAccumulator
 struct StorageAvailabilityResult{N,L,T<:Period} <: AbstractAvailabilityResult{N,L,T}
 
     storages::Vector{String}
-    timestamps::StepRange{ZonedDateTime,T}
+    timestamps::AbstractVector{ZonedDateTime}
 
     available::Array{Bool,3}
 

diff --git a/PRASCore.jl/src/Results/StorageEnergy.jl b/PRASCore.jl/src/Results/StorageEnergy.jl
@@ -64,7 +64,7 @@ struct StorageEnergyResult{N,L,T<:Period,E<:EnergyUnit} <: AbstractEnergyResult{
 
     nsamples::Union{Int,Nothing}
     storages::Vector{String}
-    timestamps::StepRange{ZonedDateTime,T}
+    timestamps::AbstractVector{ZonedDateTime}
 
     energy_mean::Matrix{Float64}
 

diff --git a/PRASCore.jl/src/Results/StorageEnergySamples.jl b/PRASCore.jl/src/Results/StorageEnergySamples.jl
@@ -57,7 +57,7 @@ accumulatortype(::StorageEnergySamples) = StorageEnergySamplesAccumulator
 struct StorageEnergySamplesResult{N,L,T<:Period,E<:EnergyUnit} <: AbstractEnergyResult{N,L,T}
 
     storages::Vector{String}
-    timestamps::StepRange{ZonedDateTime,T}
+    timestamps::AbstractVector{ZonedDateTime}
 
     energy::Array{Int,3}
 

diff --git a/PRASCore.jl/src/Results/Surplus.jl b/PRASCore.jl/src/Results/Surplus.jl
@@ -61,7 +61,7 @@ struct SurplusResult{N,L,T<:Period,P<:PowerUnit} <: AbstractSurplusResult{N,L,T}
 
     nsamples::Union{Int,Nothing}
     regions::Vector{String}
-    timestamps::StepRange{ZonedDateTime,T}
+    timestamps::AbstractVector{ZonedDateTime}
 
     surplus_mean::Matrix{Float64}
 

diff --git a/PRASCore.jl/src/Results/SurplusSamples.jl b/PRASCore.jl/src/Results/SurplusSamples.jl
@@ -57,7 +57,7 @@ accumulatortype(::SurplusSamples) = SurplusSamplesAccumulator
 struct SurplusSamplesResult{N,L,T<:Period,P<:PowerUnit} <: AbstractSurplusResult{N,L,T}
 
     regions::Vector{String}
-    timestamps::StepRange{ZonedDateTime,T}
+    timestamps::AbstractVector{ZonedDateTime}
 
     surplus::Array{Int,3}
 

diff --git a/PRASCore.jl/src/Results/Utilization.jl b/PRASCore.jl/src/Results/Utilization.jl
@@ -77,7 +77,7 @@ struct UtilizationResult{N,L,T<:Period} <: AbstractUtilizationResult{N,L,T}
 
     nsamples::Union{Int,Nothing}
     interfaces::Vector{Pair{String,String}}
-    timestamps::StepRange{ZonedDateTime,T}
+    timestamps::AbstractVector{ZonedDateTime}
 
     utilization_mean::Matrix{Float64}
 

diff --git a/PRASCore.jl/src/Results/UtilizationSamples.jl b/PRASCore.jl/src/Results/UtilizationSamples.jl
@@ -74,7 +74,7 @@ accumulatortype(::UtilizationSamples) = UtilizationSamplesAccumulator
 struct UtilizationSamplesResult{N,L,T<:Period} <: AbstractUtilizationResult{N,L,T}
 
     interfaces::Vector{Pair{String,String}}
-    timestamps::StepRange{ZonedDateTime,T}
+    timestamps::AbstractVector{ZonedDateTime}
 
     utilization::Array{Float64,3}