Version 2.0.3

[mfripp]

Here's the changelog for this version. See commits below for complete details.

• Users can now provide data in variable_capacity_factors.tab and hydro_timeseries.tab for times before projects are built or after they are retired without raising an error. However, the extra datapoints will be ignored.
• Various parts of the code have better formatting, documentation and performance.
• switch_model.hawaii.smooth_dispatch is now compatible with Pyomo 5.6 and later.
• A new '--exact' option in switch_model.hawaii.rps forces the system to exactly meet the RPS target and no more. This is useful for studying the cost of adopting various levels of renewable power, including levels below the least-cost system design (i.e., cases where low shares of renewable power cause higher system costs).
• A bug was fixed when calculating the cost of water spillage in switch_model.generators.extensions.hydro_system.
• Final reservoir level in switch_model.generators.extensions.hydro_system is now stored in a variable called ReservoirFinalVol. The ReservoirSurplus variable has been eliminated.
• Bounds on a number of inputs have been relaxed to allow unusual or edge cases. In particular, a number of variables can now be zero instead of strictly positive. This allows zero costs, zero capacity limits, zero-based year counting, etc.
• The gen_is_baseload parameter is now optional, with a default value of False (0).
• NEW_TRANS_BLD_YRS has been renamed to TRANS_BLD_YRS.
• setup.py now lists an optional dependency on rpy2<3.9 instead of rpy2, because later versions of rpy2 require Python 3, which Switch doesn't support yet. This only affects the iterative demand response module.
• A new GENS_BY_ENERGY_SOURCE set can be used to identify all the generators that use any energy source, either a fuel or a non-fuel energy source. GENS_BY_FUEL and GENS_BY_NON_FUEL_ENERGY_SOURCE also still exist.
• We have begun migrating toward using initialize instead of rule when initializing Pyomo components, and recommend that users do the same in their custom modules. This matches the current Pyomo API documentation. rule also works for now, but initialize should be more future proof.
• The discrete-build requirement is now enforced on generators with predetermined build quantities, in addition to optimized generators.
• The optional psycopg2 dependency has been changed to psycopg2-binary.
• The --debug option now uses the ipdb debugger if available; otherwise it falls back to pdb.