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Question

Getting ready for export

  • December 4, 2025
  • 1 reply
  • 13 views
hertsevaddict
Carbon Cutter***
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Hello, 

So my plans when installing a 8kw solis hybrid inverter and 16kwh lifepo4 battery were not for export, just a protection for blackouts (the house now runs on UPS). It is also a first step to lower electricity expenses, as they will only grow when we get an ASHP. Eventually we may add some PV.  

Our battery install is ready.  🙂

Since our DNO uk power networks stated they would approve us to do 5kw export, taking the next step while it was all fresh seemed simpler.  

I now have an export MPAN, actually with 8kw approved. Our smart meter is export-ready. But we do not have MCS nor flexorb (as I had no plan to export now, I saved the expense).  

Is there an advantage to get MCS paperwork vs short-circuiting and setting up export to an utility operator that does not require it? Or is there anything to gain with MCS?  😉 

1 reply

Peter E
Plan Zero Hero
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  • Peter EPlan Zero Hero
  • Plan Zero Hero
  • December 4, 2025

As far as I'm aware most energy companies require MCS certification in order to be able to export. The only one who do not specifically require this is Octopus who will accept an installation certificate from a licenced electrician as far as I can recall. These details need to be verified. it's for safety reasons which means DIY installations are not accepted. I had not heard of Flex-Orb until now so you would have to ask the question. It may be equivalent to MCS. 

Reducing my yearly fossil fuel usage with an EV (-900 litres petrol), A2AHP (-8,500 kWh gas) and Timed Immersion heater (-1,500 kWh gas)
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