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June 2022. Release of the new version 5 of the NAP Transmission Network Analysis and Planning software.

NAP (Network Analysis and Planning) 

is a complete software package for the analysis and planning of electrical transmission networks (MV and HV). Widely used for load flow studies, short circuit calculation and incident simulation, it allows network analysis and planning of new extensions (Transmission Master Plan, power plant interconnection study...)

The new version 5 (published in 2022) is now available and offers a new data management completely modernized with new capacities of data entry and visualization of the networks in mixed mode single line and cartographic (GIS). NAP 5 also integrates in an optimized way new ENR generators (solar and wind intermittent) and storage modules for more detailed network analyses and to meet current requirements. Its new automatic calculation engine also allows to compare different scenarios and identify the most appropriate solution in the case of transmission network extension studies.


A one-click installation, NAP 5 uses the latest technology to provide planners and decision makers with fast, professional results through a modern, user-friendly interface.

The NAP 2022 version can now be tested for free on our Website.

Feb. 2022. IED establishes the most up-to-date mapping of the WAPP area with the latest information in early 2022.

In total, more than 200 powerplants, 570 substations and 1040 transmission lines have been georeferenced.

In 2022, it is estimated that the installed capacity in the whole area exceeds 25 GW. The ENR share is estimated to be around 31% as described in the following table:

Type Capacity (MW) Part
Biomass 32 0%
Solar 535 2%
Wind 203 1%
Hydro 7130 28%
Thermal 2013 8%
Gas 15744 61%
25720 100%
7919 31%

More than 5 GW of generation is to be delivered in the short term in the next few years, which will bring the capacity of the area to more than 30 GW. The map below shows the distribution of power plants, with a wide disparity in the distribution of technologies, depending on the potential of the area.


The database built will be able to feed the NAP and GAP software for energy supply stability studies (GAP) and transport network studies (NAP).

SolarMGJul.2021: New PV minigrids planning module

In order to provide more detailed and accurate electrification options, the latest version GEOSIM 5.6 now includes a new and improved planning module for PV electrification options that strengthens the previous approach of solar mini-grids.

3 mini-grid configurations can now be studied:

  • PV Hybrid Diesel Project: diesel generator with solar hybridisation. From a solar point of view, this module is equivalent to a grid connected system, the hybridisation reduces the load on the diesel, which however remains in permanent operation.
  • PV/Battery/Diesel: Solar, batteries, diesel. Solar based mini-grid with diesel support to ensure a certain quality of service.
  • PV/Battery: Solar, batteries for smaller mini-grids

The discounted levelized cost study can also be carried out on the long term with a more precise and geospatial estimate of the solar potential, calculated per site and derived from the solar maps available on the internet (GlobalSolarAtlas...)


Feb 2021. New releases for GAP and DAP

GAP 3.6 - New corrections and evolutions available with the new version of GAP, in particular the following points :

  • Spanish language version added.
  • Visualization by satellite imagery of power plants
  • Addition of a system indicator for the amount of thermal production injected into the storage.
  • Added storage of the result settings for :

          - Annual results
          - Periodic results
          - Scenario comparison

DAP 4.3 - Many corrections, optimizations and evolutions are available with the new version of DAP, in particular the following points :

  • Evolution of the forecast/results screen for large customers to have more information.
  • Addition of the import and export directories parameterization in the options
  • Added choice of unit for determining factors
  • Adding a totalization in the bulk consumers results.

June 2020. DAP 4 version 2020 is now available !

DAPV4Born from the observation that it is fundamental to forecast, at best, the demand for electricity on a territorial scale, in order to better anticipate and plan investments in generation, the DAP software was developed more than 25 years ago and has since been widely tested by large well-known institutions and companies. In order to compensate for the absence of modern tools fully adapted to the energy sector stakeholders (national institutions, electricity companies, distribution companies ...) and plan and evaluate actions of Demand Side Management (DSM), DAP was completely modernized in 2020 to better respond to today's increasingly strategic key challenges. The DAP solution thus makes it possible to simulate the operation of the regional power system in order to assess the adequacy of the power supply.and compare various demand forecasting scenarios using different statistical methods, in order to anticipate sectoral and / or regional energy needs. The DSM mode also makes it possible to predict the effects of national policies on the evolution of demand

DAP 4 is now fully integrated with the latest version GAP 4 published in 2019 in order to constitute a real decision-making platform concerning the analysis and planning of energy supply and demand, integration of Variable Renewable Energy (VRE) and generation expansion planning (GEP).


Software installed in one click, DAP uses the latest technologies to provide planners and decision-makers with rapid professional results through a modern and user-friendly interface.

The new DAP version 2020 can now be tested for free on our  Download Space