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Solar PV and Octopus- DNO, MCS, MPAN (etc) Formalities

Qyburn
Posts: 3,505 Forumite

We're not there yet but I want to understand in advance as much as possible about the formalities around getting set up for an export tariff. We're an existing Octopus customer and will be going initially with their fixed export.
The installation has a G99 application approved. At what stage do we get the "DNO Letter" that Octopus refers to? Should that be available at this stage, or is there a sign off or inspection or something once the installation is complete?
MCS comes from the installer so I need to confirm from them when that's issued.
The installation has a G99 application approved. At what stage do we get the "DNO Letter" that Octopus refers to? Should that be available at this stage, or is there a sign off or inspection or something once the installation is complete?
MCS comes from the installer so I need to confirm from them when that's issued.
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Comments
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Generally speaking, the DNO Notification and MCS Certificate should be provided upon payment being made in full and system operation being confirmed.- 10 x 400w LG + 6 x 550W SHARP BiFacial Panels + SE 3680 HD Wave Inverter + SE Optimizers. SE London.
- Triple aspect. (22% ENE/ 33% SSE/ 45% WSW)
- Viessmann 200-W on Advanced Weather Comp. (the most efficient gas boiler sold)Feel free to DM me if I can help with any energy saving!0 -
Qyburn said:We're not there yet but I want to understand in advance as much as possible about the formalities around getting set up for an export tariff. We're an existing Octopus customer and will be going initially with their fixed export.
The installation has a G99 application approved. At what stage do we get the "DNO Letter" that Octopus refers to? Should that be available at this stage, or is there a sign off or inspection or something once the installation is complete?
MCS comes from the installer so I need to confirm from them when that's issued.
MCS should be within 10 days of commissioning.PV total 19.8 kW system:
23 x 420W East/West split over two flat roof areas at 10 degrees inclination.
13 x 390W South spit over two flat roof areas at 5 to 20 degrees inclination.
6 x 390W south wall mounted at 90 degrees inclination.
7 x 390W West wall mounted at 90 degrees inclination.
2 x 5 kW hybrid inverters
4 x 9.5 kWh batteries (38 kWh total)0 -
94JDH said:You should really have sight of DNO offer before your installation and definitely before paying. If it's not in place it's your responsibility (even though the installer has said they'll do it) and then all the potential hassle as well.
For G99 is there a subsequent acceptance or anything, or is that approval at the application stage all that's needed.
I must say I was disappointed in the answers from Octopus which were very contradictory, one moment all they need is the MCS certificate, then she said they need the export MPAN, then she said they apply for the MPAN, and at one stage she said the MCS certificate will show the MPAN. In the end she said she was "just going by what she's seen" and would pass my question on.0 -
Qyburn said:94JDH said:You should really have sight of DNO offer before your installation and definitely before paying. If it's not in place it's your responsibility (even though the installer has said they'll do it) and then all the potential hassle as well.
For G99 is there a subsequent acceptance or anything, or is that approval at the application stage all that's needed.
I must say I was disappointed in the answers from Octopus which were very contradictory, one moment all they need is the MCS certificate, then she said they need the export MPAN, then she said they apply for the MPAN, and at one stage she said the MCS certificate will show the MPAN. In the end she said she was "just going by what she's seen" and would pass my question on.PV total 19.8 kW system:
23 x 420W East/West split over two flat roof areas at 10 degrees inclination.
13 x 390W South spit over two flat roof areas at 5 to 20 degrees inclination.
6 x 390W south wall mounted at 90 degrees inclination.
7 x 390W West wall mounted at 90 degrees inclination.
2 x 5 kW hybrid inverters
4 x 9.5 kWh batteries (38 kWh total)1
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