CHANGES IN BUILD 20230122:
- Added the possibility to inject power to the AC grid from the fossil fuel generator (AC generator) in NPV maximizing systems (in generating systems which sell electricity to the grid).
- Added C-rate for grid-connected battery charge / discharge.
CHANGES IN BUILD 20221223:
- Fixed minor bugs
- Added minimum capacity of the water tank or reservoir to allow the use of the turbine in PHS systems.
- The user can define if PV AC coupled inverter can limit the AC output power of the PV to the inverter rated power. If not limited, as in previous versions, we assume the inverter can be overcharged.
- Capacity factor when PV is AC coupled uses AC output power of the inverter instead DC PV power.
CHANGES IN BUILD 20221210:
- Added possibility to use electricity sell price inflation instead of general inflation in calculation of LCOE in maximizing NPV projects.
- Fixed minor bugs (bifacial PV, CPV, electrolyzer, fuel cell).
CHANGES IN BUILD 20221201:
New version 3.4 published in November 22, 2022. News:Added the possibility to consider wake effect in wind turbines.Added the availability (hourly and monthly) for electrolyzer and for fuel cell.Added variable efficiency for the water pump (for PHS and for water supply).Choose power limit for priority to use surplus Energy in pump or in batteries In Excel file obtained in simulation, added column of efficiency of turbine, efficiency of pump and efficiency of electrolyzer (% of HHV).Improved visual effects in graphs, adding checkbox for the different series.In load window the graph includes the water load (in energy pumped) and shows the total average daily energy for each month. In iHOGA high power projects and in MHOGA, added the possibility to connect PV generator and wind turbines to the DC bus.Extended download irradiation/wind/temperature hourly data from PVGIS for all around the world. Changed maximum current in li-ion batteries databases to C/2. Corrected problem with full equivalent cycles model of li-ion batteries when including calendar ageing for cases of very low discharge current.Corrected bugs in some cases with PHS storage.Corrected bugs when showing unmet load in multi-objective optimization.Fixed minor bugs.
New version 3.3 published in September 29th, 2022. News:Added a new li-ion LiFePo4 battery degradation model (Naumann et al., 2020). MHOGA: In maximization of the net present value (NPV) projects, added the constraint of the minimum renewable capacity factor (sold energy divided by peak power of the renewables multiplied by 8760 h).MHOGA: In maximization of the net present value (NPV) projects, added the constraint of the maximum land use.In maximization of the net present value (NPV) projects, added the the result of the renewable capacity factor (sold energy divided by peak power of the renewables multiplied by 8760 h).MHOGA: In maximization of the net present value (NPV) projects, added the result of the land use.In maximization of the net present value (NPV) projects, when a solution does not meet all the constraints, it is assigned an NPV of –infinite (before it was assigned 0).Added the number of cycles to failure for 100% DOD of the batteries.Fixed bugs
New version 3.2 published in April 2nd, 2022. News:
Added calculation of direct irradiance when downloading data from databases.
Added graph of direct irradiance.
Added possibility to consider Concentrating PV (CPV) modules or generators.
Corrected bugs when downloading NASA hourly data.
Corrected bugs of multi-objective optimization (when using unmet load as objective).
Corrected bug when calculating back surface irradiation if solar tracking (one or two axis) was selected.
Corrected minor bugs.
NASA has changed the formta of the download files of irradiation, wind speed and temperature. The software has been adapted to these changes
-Corrected bug when downloading the first time hourly irradiation from NASA, it didn’t update the latitude to calculate the irradiation over the tilted surface after downloading the hourly irradiation.
-Corrected bug when downloading Renewables Ninja irradation hourly data in the south hemisphere with tilted surface.
January 10th, 2022, corrected bugs: right axis of the main graph of the simulation screeen and hourly fuel consumption of the AC generator
November 12th, 2021, corrected bugs when downloading data form databases in computers that use comma as decimal separator.
New version 3.1 published in November 2nd, 2021.
- Added the possibility to use bifacial
- Improved reports
- Improved the visualization of the
application, adapting to different screen sizes and DPI.
- Added visual themes.
- Fixed minor bugs.
Modified the method to download NASA data as their database changed. Also added method to download hourly data from NASA. Fixed bugs