Thank you for taking your time to read this. We have built several HMI/SCADA systems for electrical substations since 1989. We have built drivers for .NET for over 100 industrial communications protocols for PLCs, IEDs, including Modbus, DNP3, OPC-DA, OPC-UA & more. Some other IEDs we have drivers for are SEL(Schweitzer), Eaton, GE, Siemens etc. Both control & monitoring is supported. Multiple systems are in place worldwide. A client-server system supporting unlimited clients & unlimited PLCs/IED quantity & tags. Largest electrical scada in use since 2001 talking to over 1000 IEDs & has over 100000 tags. We currently do not have IEC-61850 driver but can build one (not included in our proposal). Or we can purchase the 61850 driver from 3rd party & use it (cost of this is not included in our proposal). We have also added features for dealing with electrical events, harmonics, waveform capturing, tag-out/log-out for breakers & protection relays. The database used is MS SQL Server. Audit trail, web & cloud support can also be provided. We shall like to show you the system via web meeting & partnering with you. Commissioning assistance available all over the world. In order to raise your trust & confidence, we can also build a proof of concept (POC) for you for a token fee of US$100, payable after you like the POC via freelancer. If you like to continue commercial use of the POC, you can make us a reasonable offer. There will be no obligation if you do not like POC.