Merge pull request #239 from NREL/default_update_23

Default update 23

CHANGELOG.md

@@ -23,6 +23,31 @@ Classify the change according to the following categories:
     ### Deprecated
     ### Removed
 
+## Develop
+### Changed
+- ANNUAL UPDATE TO DEFAULT VALUES. Changes outlined below with (old value) --> (new value). See user manual for references. 
+  - Owner Discount rate, nominal (%): : **Financial** **owner_discount_rate_fraction** 0.0564	--> 0.0638
+  - Offtaker Discount rate, nominal (%): **Financial**  **offtaker_discount_rate_fraction** 0.0564 --> 0.0638
+  - Electricity cost escalation rate, nominal (%): **Financial** **elec_cost_escalation_rate_fraction** 0.019	--> 0.017
+  - Existing boiler fuel cost escalation rate, nominal (%): **Financial**  **existing_boiler_fuel_cost_escalation_rate_fraction**	0.034	--> 0.015
+  - Boiler fuel cost escalation rate, nominal (%): **Financial** **boiler_fuel_cost_escalation_rate_fraction**	0.034	--> 0.015
+  - CHP fuel cost escalation rate, nominal (%): **Financial**  **chp_fuel_cost_escalation_rate_fraction**	0.034	--> 0.015
+  - Generator fuel cost escalation rate, nominal (%): **Financial**  **generator_fuel_cost_escalation_rate_fraction**	0.027	--> 0.012
+  - Array tilt – Ground mount, Fixed: **PV** **tilt** latitude	--> 20
+  - O&M cost ($/kW/year): **PV** **om_cost_per_kw**	17	--> 18
+  - System capital cost ($/kW): **PV** **installed_cost_per_kw**	1592	--> 1790
+  - Energy capacity cost ($/kWh): **ElectricStorage** **installed_cost_per_kwh**	388	--> 455
+  - Power capacity cost ($/kW): **ElectricStorage**	**installed_cost_per_kw**	775	--> 910
+  - Energy capacity replacement cost ($/kWh): **ElectricStorage** **replace_cost_per_kwh**	220	--> 318
+  - Power capacity replacement cost ($/kW): **ElectricStorage**	**replace_cost_per_kw**	440	--> 715
+  - Fuel burn rate by generator capacity (gal/kWh): **Generator** **fuel_slope_gal_per_kwh**	0.076	--> removed and replaced with full and half-load efficiencies
+  - Electric efficiency at 100% load (% HHV-basis): **Generator** **electric_efficiency_full_load**	N/A - new input	--> 0.322
+  - Electric efficiency at 50% load (% HHV-basis): **Generator** **electric_efficiency_half_load**	N/A - new input	--> 0.322
+  - Generator fuel higher heating value (HHV): **Generator** **fuel_higher_heating_value_kwh_per_gal**	N/A - new input	--> 40.7
+  - System capital cost ($/kW): **Generator**  **installed_cost_per_kw** 500	--> $650 if the generator only runs during outages; $800 if it is allowed to run parallel with the grid; $880 for off-grid
+  - Fixed O&M ($/kW/yr): **Generator** **om_cost_per_kw** Grid connected: 10 Off-grid: 20 --> Grid connected: 20 Off-grid: 10
+  - System capital cost ($/kW) by Class: **Wind** **size_class_to_installed_cost**	residential - 5675 commercial - 4300 medium - 2766 large - 2239 --> residential - 6339 commercial - 4760 medium - 3137 large - 2386
+  - O&M cost ($/kW/year): **Wind** **om_cost_per_kw** 35 --> 36
 ## v0.34.0
 ### Added
 - Ability to run hybrid GHX sizing using **GhpGhx.jl** (automatic and fractional sizing)

src/core/energy_storage/electric_storage.jl

@@ -146,10 +146,10 @@ end
     soc_min_fraction::Float64 = 0.2
     soc_init_fraction::Float64 = off_grid_flag ? 1.0 : 0.5
     can_grid_charge::Bool = off_grid_flag ? false : true
-    installed_cost_per_kw::Real = 775.0
-    installed_cost_per_kwh::Real = 388.0
-    replace_cost_per_kw::Real = 440.0
-    replace_cost_per_kwh::Real = 220.0
+    installed_cost_per_kw::Real = 910.0
+    installed_cost_per_kwh::Real = 455.0
+    replace_cost_per_kw::Real = 715.0
+    replace_cost_per_kwh::Real = 318.0
     inverter_replacement_year::Int = 10
     battery_replacement_year::Int = 10
     macrs_option_years::Int = 7
@@ -178,10 +178,10 @@ Base.@kwdef struct ElectricStorageDefaults
     soc_min_fraction::Float64 = 0.2
     soc_init_fraction::Float64 = off_grid_flag ? 1.0 : 0.5
     can_grid_charge::Bool = off_grid_flag ? false : true
-    installed_cost_per_kw::Real = 775.0
-    installed_cost_per_kwh::Real = 388.0
-    replace_cost_per_kw::Real = 440.0
-    replace_cost_per_kwh::Real = 220.0
+    installed_cost_per_kw::Real = 910.0
+    installed_cost_per_kwh::Real = 455.0
+    replace_cost_per_kw::Real = 715.0
+    replace_cost_per_kwh::Real = 318.0
     inverter_replacement_year::Int = 10
     battery_replacement_year::Int = 10
     macrs_option_years::Int = 7

src/core/financial.jl

@@ -3,16 +3,16 @@
 `Financial` is an optional REopt input with the following keys and default values:
 ```julia
     om_cost_escalation_rate_fraction::Real = 0.025,
-    elec_cost_escalation_rate_fraction::Real = 0.019,
-    existing_boiler_fuel_cost_escalation_rate_fraction::Float64 = 0.034, 
-    boiler_fuel_cost_escalation_rate_fraction::Real = 0.034,
-    chp_fuel_cost_escalation_rate_fraction::Real = 0.034,
-    generator_fuel_cost_escalation_rate_fraction::Real = 0.027,
-    offtaker_tax_rate_fraction::Real = 0.26,
-    offtaker_discount_rate_fraction::Real = 0.0564,
+    elec_cost_escalation_rate_fraction::Real = 0.017,
+    existing_boiler_fuel_cost_escalation_rate_fraction::Float64 = 0.015, 
+    boiler_fuel_cost_escalation_rate_fraction::Real = 0.015,
+    chp_fuel_cost_escalation_rate_fraction::Real = 0.015,
+    generator_fuel_cost_escalation_rate_fraction::Real = 0.012,
+    offtaker_tax_rate_fraction::Real = 0.26, # combined state and federal tax rate
+    offtaker_discount_rate_fraction::Real = 0.0638,
     third_party_ownership::Bool = false,
-    owner_tax_rate_fraction::Real = 0.26,
-    owner_discount_rate_fraction::Real = 0.0564,
+    owner_tax_rate_fraction::Real = 0.26, # combined state and federal tax rate
+    owner_discount_rate_fraction::Real = 0.0638,
     analysis_years::Int = 25,
     value_of_lost_load_per_kwh::Union{Array{R,1}, R} where R<:Real = 1.00, #only applies to multiple outage modeling
     microgrid_upgrade_cost_fraction::Real = 0.0
@@ -77,16 +77,16 @@ struct Financial
     function Financial(;
         off_grid_flag::Bool = false,
         om_cost_escalation_rate_fraction::Real = 0.025,
-        elec_cost_escalation_rate_fraction::Real = 0.019,
-        existing_boiler_fuel_cost_escalation_rate_fraction::Float64 = 0.034,
-        boiler_fuel_cost_escalation_rate_fraction::Real = 0.034,
-        chp_fuel_cost_escalation_rate_fraction::Real = 0.034,
-        generator_fuel_cost_escalation_rate_fraction::Real = 0.027,
-        offtaker_tax_rate_fraction::Real = 0.26,
-        offtaker_discount_rate_fraction::Real = 0.0564,
+        elec_cost_escalation_rate_fraction::Real = 0.017,
+        existing_boiler_fuel_cost_escalation_rate_fraction::Float64 = 0.015,
+        boiler_fuel_cost_escalation_rate_fraction::Real = 0.015,
+        chp_fuel_cost_escalation_rate_fraction::Real = 0.015,
+        generator_fuel_cost_escalation_rate_fraction::Real = 0.012,
+        offtaker_tax_rate_fraction::Real = 0.257,
+        offtaker_discount_rate_fraction::Real = 0.0638,
         third_party_ownership::Bool = false,
-        owner_tax_rate_fraction::Real = 0.26,
-        owner_discount_rate_fraction::Real = 0.0564,
+        owner_tax_rate_fraction::Real = 0.257,
+        owner_discount_rate_fraction::Real = 0.0638,
         analysis_years::Int = 25,
         value_of_lost_load_per_kwh::Union{Array{<:Real,1}, Real} = 1.00, #only applies to multiple outage modeling
         microgrid_upgrade_cost_fraction::Real = 0.0,

src/core/generator.jl

@@ -6,11 +6,11 @@
     existing_kw::Real = 0,
     min_kw::Real = 0,
     max_kw::Real = 1.0e6,
-    installed_cost_per_kw::Real = only_runs_during_grid_outage ? 650.0 : 800.0,
-    om_cost_per_kw::Real = off_grid_flag ? 20.0 : 10.0,
+    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,
-    fuel_cost_per_gallon::Real = 3.0,
-    electric_efficiency_full_load::Real = 0.3233,
+    fuel_cost_per_gallon::Real = 3.61,
+    electric_efficiency_full_load::Real = 0.322,
     electric_efficiency_half_load::Real = electric_efficiency_full_load,
     fuel_avail_gal::Real = 1.0e9,
     fuel_higher_heating_value_kwh_per_gal::Real = 40.7,
@@ -101,11 +101,11 @@ struct Generator <: AbstractGenerator
         existing_kw::Real = 0,
         min_kw::Real = 0,
         max_kw::Real = 1.0e6,
-        installed_cost_per_kw::Real = only_runs_during_grid_outage ? 650.0 : 800.0,
-        om_cost_per_kw::Real= off_grid_flag ? 20.0 : 10.0,
+        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,
-        fuel_cost_per_gallon::Real = 3.0,
-        electric_efficiency_full_load::Real = 0.3233,
+        fuel_cost_per_gallon::Real = 3.61,
+        electric_efficiency_full_load::Real = 0.322,
         electric_efficiency_half_load::Real = electric_efficiency_full_load,
         fuel_avail_gal::Real = 1.0e9,
         fuel_higher_heating_value_kwh_per_gal::Real = KWH_PER_GAL_DIESEL,

src/core/heating_cooling_loads.jl

@@ -265,8 +265,8 @@ struct CoolingLoad
         time_steps_per_hour::Int = 1,
         latitude::Float64=0.0,
         longitude::Float64=0.0,
-        existing_chiller_cop::Union{Real, Nothing} = nothing,
-        existing_chiller_max_thermal_factor_on_peak_load::Union{Real, Nothing}= nothing
+        existing_chiller_cop::Union{Real, Nothing} = nothing, # Passed from ExistingChiller or set to a default
+        existing_chiller_max_thermal_factor_on_peak_load::Union{Real, Nothing}= nothing # Passed from ExistingChiller or set to a default
     )
         # determine the timeseries of loads_kw_thermal
         loads_kw_thermal = nothing

src/core/pv.jl

@@ -3,7 +3,7 @@
 `PV` is an optional REopt input with the following keys and default values:
 ```julia
     array_type::Int=1, # PV Watts array type (0: Ground Mount Fixed (Open Rack); 1: Rooftop, Fixed; 2: Ground Mount 1-Axis Tracking; 3 : 1-Axis Backtracking; 4: Ground Mount, 2-Axis Tracking)
-    tilt::Real= array_type == 1 ? 10 : abs(latitude), # tilt = 10 deg for rooftop systems, abs(lat) for ground-mount
+    tilt::Real= array_type == 1 ? 10 : 20, # tilt = 10 deg for rooftop systems, 20 for ground-mount
     module_type::Int=0, # PV module type (0: Standard; 1: Premium; 2: Thin Film)
     losses::Real=0.14, # System losses
     azimuth::Real = latitude≥0 ? 180 : 0, # set azimuth to zero for southern hemisphere
@@ -14,8 +14,8 @@
     existing_kw::Real=0,
     min_kw::Real=0,
     max_kw::Real=1.0e9,
-    installed_cost_per_kw::Real=1592.0,
-    om_cost_per_kw::Real=17.0,
+    installed_cost_per_kw::Real=1790.0,
+    om_cost_per_kw::Real=18.0,
     degradation_fraction::Real=0.005,
     macrs_option_years::Int = 5,
     macrs_bonus_fraction::Real = 0.8,
@@ -102,7 +102,7 @@ mutable struct PV <: AbstractTech
         off_grid_flag::Bool = false,
         latitude::Real,
         array_type::Int=1, # PV Watts array type (0: Ground Mount Fixed (Open Rack); 1: Rooftop, Fixed; 2: Ground Mount 1-Axis Tracking; 3 : 1-Axis Backtracking; 4: Ground Mount, 2-Axis Tracking)
-        tilt::Real= array_type == 1 ? 10 : abs(latitude), # tilt = 10 deg for rooftop systems, abs(lat) for ground-mount
+        tilt::Real= array_type == 1 ? 10 : 20, # tilt = 10 deg for rooftop systems, 20 for ground-mount
         module_type::Int=0, # PV module type (0: Standard; 1: Premium; 2: Thin Film)
         losses::Real=0.14,
         azimuth::Real = latitude≥0 ? 180 : 0, # set azimuth to zero for southern hemisphere
@@ -113,8 +113,8 @@ mutable struct PV <: AbstractTech
         existing_kw::Real=0,
         min_kw::Real=0,
         max_kw::Real=1.0e9,
-        installed_cost_per_kw::Real=1592.0,
-        om_cost_per_kw::Real=17.0,
+        installed_cost_per_kw::Real=1790.0,
+        om_cost_per_kw::Real=18.0,
         degradation_fraction::Real=0.005,
         macrs_option_years::Int = 5,
         macrs_bonus_fraction::Real = 0.8,

src/core/wind.jl

@@ -5,7 +5,7 @@
     min_kw = 0.0,
     max_kw = 1.0e9,
     installed_cost_per_kw = nothing,
-    om_cost_per_kw = 35.0,
+    om_cost_per_kw = 36.0,
     production_factor_series = nothing, # Optional user-defined production factors. Must be normalized to units of kW-AC/kW-DC nameplate. The series must be one year (January through December) of hourly, 30-minute, or 15-minute generation data.
     size_class = "",
     wind_meters_per_sec = [],
@@ -41,10 +41,10 @@
     If no `installed_cost_per_kw` is provided then it is determined from:
     ```julia
     size_class_to_installed_cost = Dict(
-        "residential"=> 11950.0,
-        "commercial"=> 7390.0,
-        "medium"=> 4440.0,
-        "large"=> 3450.0
+        "residential"=> 6339.0,
+        "commercial"=> 4760.0,
+        "medium"=> 3137.0,
+        "large"=> 2386.0
     )
     ```
     If the `production_factor_series` is not provided then NREL's System Advisor Model (SAM) is used to get the wind turbine 
@@ -102,7 +102,7 @@ struct Wind <: AbstractTech
         min_kw = 0.0,
         max_kw = 1.0e9,
         installed_cost_per_kw = nothing,
-        om_cost_per_kw = 35.0,
+        om_cost_per_kw = 36.0,
         production_factor_series = nothing,
         size_class = "",
         wind_meters_per_sec = [],
@@ -141,10 +141,10 @@ struct Wind <: AbstractTech
             "large"=> 80
         )
         size_class_to_installed_cost = Dict(
-            "residential"=> 5675.0,
-            "commercial"=> 4300.0,
-            "medium"=> 2766.0,
-            "large"=> 2239.0
+            "residential"=> 6339.0,
+            "commercial"=> 4760.0,
+            "medium"=> 3137.0,
+            "large"=> 2386.0
         )
 
         if size_class == ""

test/runtests.jl

@@ -176,7 +176,7 @@ else  # run HiGHS tests
         post = JSON.parsefile("./scenarios/$post_name")
         scen = Scenario(post)
 
-        @test scen.pvs[1].tilt ≈ post["Site"]["latitude"] 
+        @test scen.pvs[1].tilt ≈ 20
         @test scen.pvs[1].azimuth ≈ 180
 
         ## Scenario 2: Palmdale, CA; array-type = 1 (roof)
@@ -191,7 +191,7 @@ else  # run HiGHS tests
         post["PV"]["array_type"] = 0 
         scen = Scenario(post)
 
-        @test scen.pvs[1].tilt ≈ abs(post["Site"]["latitude"])
+        @test scen.pvs[1].tilt ≈ 20
         @test scen.pvs[1].azimuth ≈ 0
 
         ## Scenario 4:Cape Town; array-type = 0 (ground); user-provided tilt (should not get overwritten)

test/scenarios/chp_sizing.json

@@ -7,6 +7,7 @@
         "analysis_years": 25,
         "om_cost_escalation_rate_fraction": 0.025,
         "elec_cost_escalation_rate_fraction": 0.023,
+        "existing_boiler_fuel_cost_escalation_rate_fraction": 0.034, 
         "boiler_fuel_cost_escalation_rate_fraction": 0.034,
         "chp_fuel_cost_escalation_rate_fraction": 0.034,
         "offtaker_discount_rate_fraction": 0.083,

test/scenarios/chp_supplementary_firing.json

@@ -7,6 +7,7 @@
         "analysis_years": 25,
         "om_cost_escalation_rate_fraction": 0.025,
         "elec_cost_escalation_rate_fraction": 0.023,
+        "existing_boiler_fuel_cost_escalation_rate_fraction": 0.034, 
         "boiler_fuel_cost_escalation_rate_fraction": 0.034,
         "chp_fuel_cost_escalation_rate_fraction": 0.034,
         "offtaker_discount_rate_fraction": 0.083,

test/scenarios/chp_unavailability_outage.json

@@ -7,6 +7,7 @@
         "analysis_years": 25,
         "om_cost_escalation_rate_fraction": 0.025,
         "elec_cost_escalation_rate_fraction": 0.023,
+        "existing_boiler_fuel_cost_escalation_rate_fraction": 0.034, 
         "boiler_fuel_cost_escalation_rate_fraction": 0.034,
         "chp_fuel_cost_escalation_rate_fraction": 0.034,
         "offtaker_discount_rate_fraction": 0.083,

test/scenarios/nogridcost_minresilhours.json

@@ -61,10 +61,16 @@
   },
   "Generator": {
     "fuel_avail_gal": 660,
-    "installed_cost_per_kw": 500.0
+    "installed_cost_per_kw": 500.0,
+    "om_cost_per_kw": 10.0,
+    "fuel_cost_per_gallon": 3.0,
+    "electric_efficiency_full_load": 0.3233
   },
   "Financial": {
     "value_of_lost_load_per_kwh": 0.001,
-    "microgrid_upgrade_cost_fraction": 0.3
+    "microgrid_upgrade_cost_fraction": 0.3,
+    "generator_fuel_cost_escalation_rate_fraction": 0.027,
+    "elec_cost_escalation_rate_fraction": 0.019,
+    "offtaker_discount_rate_fraction": 0.0564
   }
 }

test/scenarios/nogridcost_multiscenario.json

@@ -59,6 +59,8 @@
   },
   "Financial": {
     "value_of_lost_load_per_kwh": 1.0,
-    "microgrid_upgrade_cost_fraction": 0.3
+    "microgrid_upgrade_cost_fraction": 0.3,
+    "elec_cost_escalation_rate_fraction": 0.019,
+    "offtaker_discount_rate_fraction": 0.0564
   }
 }

test/scenarios/off_grid.json

@@ -16,7 +16,8 @@
         "tilt": 34.579,
         "federal_rebate_per_kw": 350,
         "operating_reserve_required_fraction": 0.25,
-        "production_incentive_per_kwh": 0.05
+        "production_incentive_per_kwh": 0.05,
+        "om_cost_per_kw": 17.0
     },
     "Generator": {
         "installed_cost_per_kw": 700,
@@ -25,7 +26,9 @@
         "replacement_year": 10,
         "replace_cost_per_kw": 700,
         "electric_efficiency_full_load": 0.3232898,
-        "electric_efficiency_half_load": 0.3232898
+        "electric_efficiency_half_load": 0.3232898,
+        "om_cost_per_kw": 20.0,
+        "fuel_cost_per_gallon": 3.0
     },
     "ElectricLoad": {
         "doe_reference_name": "RetailStore",