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CHANGELOG.md

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REoptLite Changelog

v0.9.0

  • ElectricTariff.NEM boolean is now determined by ElectricUtility.net_metering_limit_kw (true if limit > 0)
  • added ElectricUtility inputs for net_metering_limit_kw and interconnection_limit_kw
  • added binary choice for net metering vs. wholesale export
  • added ElectricTariff.export_rate_beyond_net_metering_limit input (scalar or vector allowed)
  • added can_net_meter, can_wholesale, can_export_beyond_nem_limit tech inputs (PV, Wind, Generator)

v0.8.0

  • added Wind module, relying on System Advisor Model Wind module for production factors and Wind Toolkit for resource data
  • new ElectricTariff input options:
    • urdb_utility_name and urdb_rate_name
    • blended_annual_energy_rate and blended_annual_demand_rate
  • added two capabilities that require binary variables:
    • tax, production, and capacity incentives for PV (compatible with any energy generation technology)
    • technology cost curve modeling capability
    • both of these capabilities are only used for the technologies that require them (based on input values), unlike the API which always models these capabilities (and therefore always includes the binary variables).
  • cost_per_kw[h] input fields are now installed_cost_per_kw[h] to distinguish it from other costs like om_cost_per_kw[h]
  • Financial input field refactored: two_party_ownership -> third_party_ownership
  • total_itc_pct -> federal_itc_pct on technology inputs
  • Three new tests: Wind, Blended Tariff and Complex Incentives (which aligns with API results)

v0.7.3

bug fixes
  • outage results processing would fail sometimes when an integer variable was not exact (e.g. 1.000000001)
  • fixed simulate_outages for revised results formats (key names changed to align with the REopt Lite API)

v0.7.2

Improvements

  • added PV.prod_factor_series_kw input (can skip PVWatts call)
  • added run_mpc capability, which dispatches DER for minimum energy cost over an arbitrary time horizon

v0.7.1

bug fixes
  • ElectricLoad.city default is empty string, must be filled in before annual_kwh look up

v0.7.0

Improvements

  • removed Storage.can_grid_export
  • add optional integer constraint to prevent simultaneous export and import of power
  • add warnings when adding integer variables
  • add ability to add LinDistFlow constraints to multinode models
  • no longer require ElectricLoad.city input (look up ASHRAE climate zone from lat/lon)
  • compatible with Julia 1.6

v0.6.0

Improvements

  • Added multi-node (site) capability for PV and Storage
  • started documentation process using Github Pages and Documenter.jl
  • restructured outputs to align with the input structure, for example top-level keys added for ElectricTariff and PV in the outputs

v0.5.3

Improvements

  • compatible with Julia 1.5

v0.5.2

bug fixes

  • outage_simulator.jl had bug with summing over empty Any[]

Improvements

  • add optional microgrid_only arg to simulate_outages

v0.5.1

Improvements

  • added outage dispatch outputs and sped up their derivation
  • removed redundant generator minimum turn down constraint

v0.5.0

bug fixes

  • handle missing input key for year_one_soc_series_pct in outage_simulator
  • remove erroneous total_unserved_load = 0 output
  • dvUnservedLoad definition was allowing microgrid production to storage and curtailment to be double counted towards meeting critical load

Improvements

  • add unserved_load_per_outage output

v0.4.1

bug fixes

  • removed total_unserved_load output because it can take hours to generate and can error out when outage indices are not consecutive

Improvements

  • add @info for time spent processing results

v0.4.0

Improvements

  • add simulate_outages function (similar to REopt Lite API outage simulator)
  • removed MutableArithmetics package from Project.toml (since JuMP now has method for value(::MutableArithmetics.Zero))
  • added outage related outputs:
    • Generator_mg_kw
    • mg_Generator_upgrade_cost
    • mg_Generator_fuel_used
    • mg_PV_upgrade_cost
    • mg_storage_upgrade_cost
    • dvUnservedLoad array
    • max_outage_cost_per_outage_duration
  • allow VoLL values to be subtype of Real (rather than only Real)
  • add run_reopt method for scenario Dict

v0.3.0

Improvements

  • add separate decision variables and constraints for microgrid tech capacities
    • new Site input mg_tech_sizes_equal_grid_sizes (boolean), when false the microgrid tech capacities are constrained to be <= the grid connected tech capacities

bug fixes

  • allow non-integer outage_probabilities
  • correct total_unserved_load output
  • don't add_min_hours_crit_ld_met_constraint unless min_resil_timesteps <= length(elecutil.outage_timesteps)

v0.2.0

Improvements

  • add support for custom ElectricLoad loads_kw input
  • include existing capacity in microgrid upgrade cost
    • previously only had to pay to upgrade new capacity
  • implement ElectricLoad loads_kw_is_net and critical_loads_kw_is_net
    • add existing PV production to raw load profile if true
  • add min_resil_timesteps input and optional constraint for minimum timesteps that critical load must be met in every outage

bug fixes

  • enforce storage cannot grid charge

v0.1.1 Fix build.jl

deps/build.jl had a relative path dependency, fixed with an absolute path.

v0.1.0 Initial release

This package is currently under development and only has a subset of capabilities of the REopt Lite model used in the REopt Lite API. For example, the Wind model, tiered electric utility tariffs, and piecewise linear cost curves are not yet modeled in this code. However this code is easier to use than the API (only dependencies are Julia and a solver) and has a novel model for uncertain outages.