Merge pull request #596 from NatLabRockies/develop

v0.58.2 Hourly Generator Costs, Bug fixes in TES-to-turbine results

Author: zolanaj

CHANGELOG.md

@@ -25,6 +25,17 @@ Classify the change according to the following categories:
     ### Deprecated
     ### Removed
 
+## v0.58.2
+### Added
+- **Generator** **om_cost_per_hr_per_kw_rated**: Generator non-fuel variable operations and maintenance costs in \$/hr/kw_rated (default of 0.0)
+  
+### Changed
+- Refactored some results expressions so that `value.` isn't called within them.
+
+### Fixed
+- Fixed an error creating results for flows from hot TES to the steam turbine.
+- Fixed an bug preventing `include_cooling_in_chp_size` from being included in CHP inputs.
+
 ## v0.58.1 
 ### Fixed
 - Calculation of offgrid_microgrid_lcoe_dollars_per_kwh for sub-hourly runs.
@@ -38,14 +49,12 @@ Classify the change according to the following categories:
 
 ### Changed
 - Updated heating dispatch results by separating heat flows to absorption chiller from heating load served (formerly, these were aggregated).
+- **HotThermalStorage** and **HighTempThermalStorage** output **storage_to_turbine_series_mmbtu_per_hour** to **storage_to_steamturbine_series_mmbtu_per_hour**
 
 ### Fixed
 - Fixed a bug in which the CHP system requires a **DomesticHotWater** load.
 - Fixed a bug in which the storage to steam turbine flow was included in the thermal heating load served.
 
-### Changed
-- **HotThermalStorage** and **HighTempThermalStorage** output **storage_to_turbine_series_mmbtu_per_hour** to **storage_to_steamturbine_series_mmbtu_per_hour**
-
 ## v0.57.0
 ### Fixed
 - Include boiler emissions in emissions calculations

Project.toml

@@ -1,7 +1,7 @@
 name = "REopt"
 uuid = "d36ad4e8-d74a-4f7a-ace1-eaea049febf6"
 authors = ["Nick Laws", "Hallie Dunham <hallie.dunham@nlr.gov>", "Bill Becker <william.becker@nlr.gov>", "Bhavesh Rathod <bhavesh.rathod@nlr.gov>", "Alex Zolan <alexander.zolan@nlr.gov>", "Amanda Farthing <amanda.farthing@nlr.gov>", "Xiangkun Li <xiangkun.li@nlr.gov>", "An Pham <an.pham@nlr.gov>", "Byron Pullutasig <byron.pullatasig@nlr.gov>"]
-version = "0.58.1"
+version = "0.58.2"
 
 [deps]
 ArchGDAL = "c9ce4bd3-c3d5-55b8-8973-c0e20141b8c3"

src/constraints/generator_constraints.jl

@@ -36,7 +36,6 @@ function add_binGenIsOnInTS_constraints(m,p)
 	end 
 end
 
-
 function add_gen_can_run_constraints(m,p)
 	if p.s.generator.only_runs_during_grid_outage
 		for ts in p.time_steps_with_grid, t in p.techs.gen
@@ -58,6 +57,38 @@ function add_gen_rated_prod_constraint(m, p)
 	)
 end
 
+"""
+    add_generator_hourly_om_charges(m, p)
+
+- add decision variable "dvOMByHourBySizeGen" for the hourly Generator operations and maintenance costs
+- add the cost to TotalPerUnitHourOMCosts
+"""
+function add_generator_hourly_om_charges(m, p)
+    dv = "dvOMByHourBySizeGen"
+    m[Symbol(dv)] = @variable(m, [p.techs.gen, p.time_steps], base_name=dv, lower_bound=0)
+
+    #Constraint Generator-hourly-om-a: om per hour, per time step >= per_unit_size_cost * size for when on, >= zero when off
+	@constraint(m, GeneratorHourlyOMBySizeA[t in p.techs.gen, ts in p.time_steps],
+        p.s.generator.om_cost_per_hr_per_kw_rated * m[Symbol("dvSize")][t] -
+        (p.s.generator.existing_kw + p.s.generator.max_kw) * p.s.generator.om_cost_per_hr_per_kw_rated * (1-m[Symbol("binGenIsOnInTS")][t,ts])
+            <= m[Symbol("dvOMByHourBySizeGen")][t, ts]
+    )
+	#Constraint Generator-hourly-om-b: om per hour, per time step <= per_unit_size_cost * size for each hour
+	@constraint(m, GeneratorHourlyOMBySizeB[t in p.techs.gen, ts in p.time_steps],
+        p.s.generator.om_cost_per_hr_per_kw_rated * m[Symbol("dvSize")][t]
+            >= m[Symbol("dvOMByHourBySizeGen")][t, ts]
+    )
+	#Constraint Generator-hourly-om-c: om per hour, per time step <= zero when off, <= per_unit_size_cost*max_size
+	@constraint(m, GeneratorHourlyOMBySizeC[t in p.techs.gen, ts in p.time_steps],
+        (p.s.generator.existing_kw + p.s.generator.max_kw) * p.s.generator.om_cost_per_hr_per_kw_rated * m[Symbol("binGenIsOnInTS")][t,ts]
+            >= m[Symbol("dvOMByHourBySizeGen")][t, ts]
+    )
+    
+    m[:TotalHourlyGenOMCosts] = @expression(m, p.third_party_factor * p.pwf_om * 
+    	sum(m[Symbol(dv)][t, ts] * p.hours_per_time_step for t in p.techs.gen, ts in p.time_steps))
+    nothing
+end
+
 
 """
     add_gen_constraints(m, p)
@@ -70,6 +101,11 @@ function add_gen_constraints(m, p)
     add_gen_can_run_constraints(m,p)
     add_gen_rated_prod_constraint(m,p)
 
+	m[:TotalHourlyGenOMCosts] = 0
+	if p.s.generator.om_cost_per_hr_per_kw_rated > 1.0E-7
+        add_generator_hourly_om_charges(m, p)
+    end
+
     m[:TotalGenPerUnitProdOMCosts] = @expression(m, p.third_party_factor * p.pwf_om *
         sum(p.s.generator.om_cost_per_kwh * p.hours_per_time_step *
         m[:dvRatedProduction][t, ts] for t in p.techs.gen, ts in p.time_steps)

src/core/chp.jl

@@ -43,7 +43,6 @@ conflict_res_min_allowable_fraction_of_max = 0.25
     serve_absorption_chiller_only::Bool = false # If CHP produced heat either serves absorption chiller or sends it to waste; only applies to the months specified in months_serving_absorption_chiller_only if true
     months_serving_absorption_chiller_only::AbstractVector{Int64} = Int64[] # months in which CHP only sevres the absorption chiller, with 1=January and 12=December; only applied when serve_absorption_chiller_only = true
     follow_electrical_load::Bool = false # If CHP follows the electrical load by running at capacity or meeting the load only.
-    include_cooling_in_chp_size::Bool = false # If true, includes cooling load (via absorption chiller) in the heuristic CHP sizing calculation along with heating loads. Defaults to true when AbsorptionChiller is present with CHP. Requires CoolingLoad to be specified.
 
     macrs_option_years::Int = 5 # Notes: this value cannot be 0 if aiming to apply 100% bonus depreciation; default may change if Site.sector is not "commercial/industrial"
     macrs_bonus_fraction::Float64 = 1.0 #Note: default may change if Site.sector is not "commercial/industrial"

src/core/generator.jl

@@ -9,6 +9,7 @@
     installed_cost_per_kw::Real = off_grid_flag ? 880 : only_runs_during_grid_outage ? 650.0 : 800.0,
     om_cost_per_kw::Real = off_grid_flag ? 10.0 : 20.0,
     om_cost_per_kwh::Real = 0.0,
+    om_cost_per_hr_per_kw_rated::Float64 = 0.0, # Generator non-fuel variable operations and maintenance costs in \$/hr/kw_rated
     fuel_cost_per_gallon::Real = 2.25,
     electric_efficiency_full_load::Real = 0.322,
     electric_efficiency_half_load::Real = electric_efficiency_full_load,
@@ -57,6 +58,7 @@ struct Generator <: AbstractGenerator
     installed_cost_per_kw
     om_cost_per_kw
     om_cost_per_kwh
+    om_cost_per_hr_per_kw_rated
     fuel_cost_per_gallon
     electric_efficiency_full_load
     electric_efficiency_half_load
@@ -104,6 +106,7 @@ struct Generator <: AbstractGenerator
         installed_cost_per_kw::Real = off_grid_flag ? 880 : only_runs_during_grid_outage ? 650.0 : 800.0,
         om_cost_per_kw::Real= off_grid_flag ? 10.0 : 20.0,
         om_cost_per_kwh::Real = 0.0,
+        om_cost_per_hr_per_kw_rated::Float64 = 0.0, # Generator non-fuel variable operations and maintenance costs in \$/hr/kw_rated
         fuel_cost_per_gallon::Real = 2.25,
         electric_efficiency_full_load::Real = 0.322,
         electric_efficiency_half_load::Real = electric_efficiency_full_load,
@@ -152,6 +155,7 @@ struct Generator <: AbstractGenerator
             installed_cost_per_kw,
             om_cost_per_kw,
             om_cost_per_kwh,
+            om_cost_per_hr_per_kw_rated,
             fuel_cost_per_gallon,
             electric_efficiency_full_load,
             electric_efficiency_half_load,

src/core/reopt.jl

@@ -274,6 +274,7 @@ function build_reopt!(m::JuMP.AbstractModel, p::REoptInputs)
             add_gen_constraints(m, p)
             m[:TotalPerUnitProdOMCosts] += m[:TotalGenPerUnitProdOMCosts]
             m[:TotalFuelCosts] += m[:TotalGenFuelCosts]
+			m[:TotalPerUnitHourOMCosts] += m[:TotalHourlyGenOMCosts]
         end
 
         if !isempty(p.techs.chp)

src/core/scenario.jl

@@ -473,7 +473,11 @@ function Scenario(d::Dict; flex_hvac_from_json=false)
         avg_cooling_load_kw = nothing
         absorption_chiller_cop = nothing
         # User can override by explicitly setting include_cooling_in_chp_size = false
-        include_cooling_in_size = get(d["CHP"], "include_cooling_in_chp_size", haskey(d, "AbsorptionChiller"))
+        if "include_cooling_in_chp_size" in keys(d["CHP"])
+            include_cooling_in_size = pop!(d["CHP"], "include_cooling_in_chp_size")
+        else
+            include_cooling_in_size = haskey(d, "AbsorptionChiller")
+        end
 
         if max_cooling_demand_kw > 0 && include_cooling_in_size
             # Use already-processed cooling_load object
@@ -498,7 +502,7 @@ function Scenario(d::Dict; flex_hvac_from_json=false)
                     sector = site.sector,
                     federal_procurement_type = site.federal_procurement_type)
         else # Only if modeling CHP without heating_load and existing_boiler (for prime generator, electric-only)
-            chp = CHP(d["CHP"],
+            chp = CHP(d["CHP"];
                     electric_load_series_kw = electric_load.loads_kw,
                     avg_cooling_load_kw = avg_cooling_load_kw,
                     absorption_chiller_cop = absorption_chiller_cop,

src/mpc/model.jl

@@ -153,6 +153,7 @@ function build_mpc!(m::JuMP.AbstractModel, p::MPCInputs)
 
     m[:TotalFuelCosts] = 0.0
     m[:TotalPerUnitProdOMCosts] = 0.0
+	m[:TotalPerUnitHourOMCosts] = 0.0
 
     if !isempty(p.techs.gen)
         add_gen_constraints(m, p)
@@ -164,6 +165,7 @@ function build_mpc!(m::JuMP.AbstractModel, p::MPCInputs)
             sum(m[:dvFuelUsage][t,ts] * p.s.generator.fuel_cost_per_gallon for t in p.techs.gen, ts in p.time_steps)
         )
         m[:TotalFuelCosts] += m[:TotalGenFuelCosts]
+		m[:TotalPerUnitHourOMCosts] += m[:TotalHourlyGenOMCosts]
 	end
 
 	add_elec_utility_expressions(m, p)
@@ -203,7 +205,7 @@ function build_mpc!(m::JuMP.AbstractModel, p::MPCInputs)
 	@expression(m, Costs,
 
 		# Variable O&M
-		m[:TotalPerUnitProdOMCosts] +
+		m[:TotalPerUnitProdOMCosts] + m[:TotalPerUnitHourOMCosts] +
 
 		# Total Generator Fuel Costs
         m[:TotalFuelCosts] +

src/mpc/structs.jl

@@ -261,6 +261,7 @@ function MPCGenerator(;
     only_runs_during_grid_outage::Bool = true,
     sells_energy_back_to_grid::Bool = false,
     om_cost_per_kwh::Real=0.0,
+    om_cost_per_hr_per_kw_rated::Real=0.0,
     )
 ```
 """
@@ -276,6 +277,7 @@ struct MPCGenerator <: AbstractGenerator
     only_runs_during_grid_outage
     sells_energy_back_to_grid
     om_cost_per_kwh
+    om_cost_per_hr_per_kw_rated
 
     function MPCGenerator(;
         size_kw::Real,
@@ -288,6 +290,7 @@ struct MPCGenerator <: AbstractGenerator
         only_runs_during_grid_outage::Bool = true,
         sells_energy_back_to_grid::Bool = false,
         om_cost_per_kwh::Real=0.0,
+        om_cost_per_hr_per_kw_rated::Real=0.0,
         )
 
         max_kw = size_kw
@@ -304,6 +307,7 @@ struct MPCGenerator <: AbstractGenerator
             only_runs_during_grid_outage,
             sells_energy_back_to_grid,
             om_cost_per_kwh,
+            om_cost_per_hr_per_kw_rated
         )
     end
 end

src/results/boiler.jl

@@ -55,8 +55,8 @@ function add_boiler_results(m::JuMP.AbstractModel, p::REoptInputs, d::Dict; _n="
     r["thermal_to_steamturbine_series_mmbtu_per_hour"] = round.(value.(NewBoilerToSteamTurbine), digits=3)
 
     if "AbsorptionChiller" in p.techs.cooling
-		@expression(m, NewBoilertoAbsorptionChillerKW[ts in p.time_steps], sum(value.(m[:dvHeatToAbsorptionChiller]["Boiler",q,ts] for q in p.heating_loads)))
-		@expression(m, NewBoilertoAbsorptionChillerByQualityKW[q in p.heating_loads, ts in p.time_steps], sum(value.(m[:dvHeatToAbsorptionChiller]["Boiler",q,ts])))
+		@expression(m, NewBoilertoAbsorptionChillerKW[ts in p.time_steps], sum(m[:dvHeatToAbsorptionChiller]["Boiler",q,ts] for q in p.heating_loads))
+		@expression(m, NewBoilertoAbsorptionChillerByQualityKW[q in p.heating_loads, ts in p.time_steps], sum(m[:dvHeatToAbsorptionChiller]["Boiler",q,ts]))
 	else
 		@expression(m, NewBoilertoAbsorptionChillerKW[ts in p.time_steps], 0.0)
 		@expression(m, NewBoilertoAbsorptionChillerByQualityKW[q in p.heating_loads, ts in p.time_steps], 0.0)