eCalc v7.1

Features

Add new CATEGORY with name OFFSHORE-WIND to report power usage from offshore windfarms. Should be negative load to deduct from genset, if what is supplied externally. Also added to LTP Reporting. See excerpt example below:
```
- NAME: wind_turbine
  CATEGORY: OFFSHORE-WIND
  ENERGY_USAGE_MODEL:
  TYPE: DIRECT
  LOAD: -4.4 # MW
```

Add new CATEGORY with name TURBINE-GENERATOR and POWER-FROM-SHORE to report power consumption separately from installation and onshore (land) for generators. If not set, defaults to TURBINE-GENERATOR. See excerpt example below:

GENERATORSETS:
  - NAME: genset
    CATEGORY: TURBINE-GENERATOR
    ELECTRICITY2FUEL: A_genset
    ...
    ...
  - NAME: power_from_shore
    CATEGORY: POWER-FROM-SHORE
    ELECTRICITY2FUEL: onshore_power
    ...

where electricity2fuel for onshore power in general would have power map to 0 fuel usage

Add new CATEGORY with name GAS-DRIVEN-COMPRESSOR to report power consumption for gas(-turbine)-driven compressors for LTP. Also added to LTP Reporting. See excerpt example below:
```
- NAME: gascompression_2
  CATEGORY: GAS-DRIVEN-COMPRESSOR
  ENERGY_USAGE_MODEL:
    TYPE: COMPRESSOR
```
Allow single speed and variable speed compressor train to run with zero pressure and non-zero rate. Will raise warning, and affected time steps will not be calculated, but eCalc will run.
Add a POWER column data to the COMPRESSOR_TABULAR csv-file for a fuel-driven SAMPLED_COMPRESSOR in order to also get energy reported as power (MW). See Header requirements for the sampled compressor csv file
Add surge control margin to variable speed compressor charts. See Surge control margin for variable speed compressor chart.
Ensure non-infinite loops by setting max 50 iterations for compressor models. Will raise warning in the logger if not converged.
Bug in max rate calculation for simplified compressor train. Wrong convergence criterion leading to too early exit from iteration.
VARIABLES can be specified in yaml and referred to in expressions.
```
VARIABLES:
  salt_water_injection:
    VALUE: SIM1:COL1 {*} 2
```
Use this variable by referencing it as $var.salt_water_injection in an expression.
```
EXPRESSION: "$var.salt_water_injection {/} 2"
```
See VARIABLES for more information.

Breaking changes

CONVERT_TO_RATE no longer supported. If this was something you used, let us know so we can know the use case.

CLI

Experimental: Add JSON v3 output to cover needs that are no longer supported by v2 because of tight coupling with core code. Both new and old format is provided, and will be stored when using the --json argument.

eCalc v7.1

Features​

CLI​

Features

CLI