From the Social media page this seems to be worryingly cropping up multiple times on my page, is this an administration error from OVO? why should customers pay to become part of a trial, at a cost that looks like it could spiral to more than they would even achieve by join the trial ?> please see below I have removed the names, I have seen this multiple times from different interested parties.
I hope you are well.
We have received an update from your Distribution Network Operator (DNO) with regards to applying to connect V2G units in your region. Unfortunately your DNO (Northern Powergrid) would charge you a design fee to further investigate the feasibility of your V2G connection. Typical design fees range from £260 + VAT for cases where the network supports full exports from the V2G unit with no additional works required to £350 + VAT for a connection solution where additional works are required. If additional works are required, it is likely that further fees will be charged by the DNO for a further technical study and the actual cost to carry out the enabling works. These further fees could range from a few hundred to a few thousand pounds.
If you choose to proceed with the next stage of your application, we will pass your details to Northern Powergrid who will carry out this work and invoice you for these design fees directly. Please note, the design fees are payable even if the connection is not technically possible, or if you decide you do not wish to proceed further based on the cost of additional works required.
We have worked with DNOs around the UK to remove fees where possible to try and ensure our V2G trial has as low a cost of participation as possible. In this instance these costs are unfortunately outside of our control.
Please could you confirm if you wish to proceed with your application on the above basis by response to this email.
OVO V2G Team
Best answer by Transparent
Hmmm… and a happy Monday morning to you too,
Before I get into the technical explanation of what’s going on, the way this issue gets resolved will depend on our attitude to the Kaluza V2G Trial.
The positive way forward is to regard “us” as part of a team which is developing and testing technology required for the future UK electricity grid. Thus we (us customers) and OVO/Kaluza are working together to address issues such as climate change.
As a commercial organisation, Kaluza must operate within the normal constraints of the energy sector, regulated by Ofgem.
As private citizens we have access to other routes, including writing to our MPs, the press and social media. We are just 11 months away from hosting the world’s next Climate Change conference, and these issues have cross-party support. So swift action is very much required and will be widely supported.
The alternative/negative view is that we get very annoyed with Kaluza, make wildly inaccurate statements to the press and stir up a backlash from DNOs such as Northern Powergrid. I don’t favour that strategy.
So let’s next explain the technical background:
Any power source which gets connected to the public electricity grid must have the appropriate certification. This confirms that it operates safely and within the supply limitations. For example if the grid fails, all power sources must detach themselves in order avoid electrocuting engineers who need to work on the remedy!
There are three main levels of certification which affect us:
G98 (was G83) is applied to equipment which is pre-tested by the manufacturer and may not supply more than 16A /phase to the grid. In this category would be all those off-the-shelf solar PV inverters such as the Sunny Boy, Xantrex Solar etc.
G100 is a varient of G98 in that it has more than 4kW of connected generation, but will only provide 16A of that to the grid. This allows connection of east-west roofs with solar panels.
G99 (was G59) is for anything else. So you can design and build any type of electrical generator, but the testing and on-site commissioning must be done by an authorised company, which in almost all cases is the local DNO.
So I deduce that Indra/Kaluza have created the V2G charger and provided test results declaring it to be G98 compliant.
However, Northern Powergrid have looked into the matter and disagreed. Thus they now want the end-users to have on-site testing and commissioning of every unit as if it requires G99 certification.
That is their right, and they are obliged by Ofgem to ensure that they correctly assess all such scenarios, most especially as regards safety.
At this stage we don’t know why Northern Powergrid have reached such a conclusion so the next step must be to find out that reason. It could be:
- the V2G charger is not self-contained and relies on external devices such as an rcd and current-detector to operate within the relevant G-standard.
- they disagree with the test data supplied by Indra, and believe that the charger could place more than 16A onto the supply
- they are not happy with the software control system of the Kaluza Platform, possibly because they’re not confident that it “fails safe” or that it couldn’t be hacked into by a 3rd party.
- they are unhappy with the control system making charge/discharge decisions based on National Grid data rather than local factors within their own Distribution Grid
So the next step is for Triallists in Northern Powergrid’s territory to write to them and find out what their reasons are.
Please do this by email so that there is a written record with a time/date stamp to verify when it was sent. Such evidence may be needed later.
I actually believe that there should be a new G-standard for V2G and Storage batteries which permits them to supply far more than 16A /phase if the control software detects that this would be beneficial to local circumstances.
If my local sub-station was suffering losses due to phase-imbalances, a mere 16A is inadequate to redress the issue.
At the moment this is academic because the Kaluza-platform doesn’t receive data input from local substations at the moment. But it should do so at some future point.