IESCO Load Flow Analysis Tool: NESPAK Enterprise MDB Simulation

Built Specifically for IESCO's NESPAK Enterprise Network Data

IESCO's distribution network is modelled in NESPAK Enterprise, a GIS platform with its own specific .MDB database structure for storing feeders, nodes, conductors, and transformers. Generic load flow tools built around a different DISCO's data format or a foreign GIS schema often cannot read this structure correctly, forcing engineers to manually rebuild feeder models before any analysis can even begin.

This tool was developed particularly for IESCO, reading the NESPAK Enterprise .MDB export directly and reconstructing the exact feeder topology already stored inside it, node by node, conductor by conductor. There is no manual redrawing and no intermediate conversion step. You upload the file IESCO's own systems already produce, and the tool takes it from there.

Real Time Network Modification

Feeder data is rarely static. A proposed new connection, a planned conductor upgrade, or a temporary reconfiguration all change the network you actually need to analyze, and re-exporting a fresh .MDB file from NESPAK Enterprise every time is slow. This tool allows real time network modification directly inside the interface after your initial upload, so you can adjust node connections, conductor sizing, or load values on the fly and immediately re-run the load flow to see the effect.

This makes the tool genuinely useful for planning conversations, not just static reporting. An engineer can test a proposed change, a planner can compare two configuration options side by side, and a field team can validate a temporary switching arrangement, all within the same session, without needing to go back to NESPAK Enterprise and generate a new export for every variation.

From MDB to Pandapower Object Creation

Behind the interface, the tool converts your NESPAK Enterprise .MDB data into a genuine Pandapower network object, the same structured representation used by Pandapower, a widely adopted open source Python library for power system analysis. Every bus, line, transformer, and load in your feeder is mapped into this object automatically, forming the basis for the load flow calculation.

Once the Pandapower object exists, the tool runs a standard load flow solution across the network, solving for voltage at every node, current and loading on every line and transformer, and total technical losses across the feeder. Because the underlying model is a real Pandapower object rather than a simplified approximation, the results carry the same accuracy you would expect from running the analysis directly in Python, without needing to write or manage any code yourself.

JSON Export for Global Interoperability

NESPAK Enterprise and Pandapower are both useful, but neither format is universally recognised outside the specific tools built around them. To solve this, the tool includes a JSON based export of your processed network, giving you a clean, structured, open format representation of the same feeder data.

This JSON export is what makes the tool genuinely interoperable rather than a closed system. IESCO engineers or consultants can take this file and bring it into other world compatible software platforms, whether that is a different power system analysis package, a custom in-house script, or an international planning tool that expects standard structured network data rather than a proprietary .MDB file. In practice, this means your IESCO feeder data is no longer locked inside NESPAK Enterprise alone. It becomes portable, ready to be used anywhere a modern engineering workflow needs it.

What You Can Analyze

Once your NESPAK Enterprise .MDB file is processed, the tool gives you a complete operational picture of your IESCO feeder. You can review feeder voltage profiles at every node, quantify technical losses across the network, check transformer loading and power flow direction, and identify line loading, current levels, and system weak points before they become operational problems. Together, this covers the core analysis most IESCO planning, design, and field decisions depend on.

Orientation and Training: 1 Hour Zoom Recording Available

Visit our official YouTube channel to find the full orientation recording, along with other walkthroughs of our engineering software.

Who This Tool Is For

This tool is built for IESCO engineers evaluating feeder performance day to day, independent consultants preparing load flow studies or hosting capacity reports for IESCO territory projects, DISCO planners assessing proposed network changes, and field staff who need a fast, browser based way to check voltage and loading on a specific feeder without waiting on a desktop software license.

Frequently Asked Questions