Tag Archives: OCPP

The Kraken/EPRI “Mercury Consortium” Launch

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Last week there was a significant “Energy Technology” announcement in Manchester. This article was supposed to be written/published last weekend, but Storm Darragh and our subsequent 20 hour power cut proved more than capable of disrupting the carefully laid plans of both mice and men!

Hastily returning to a rather damp Manchester on December 5th, here is a recording of the meat of the initial presentation by Devrim Celal, Chief Marketing and Flexibility Officer of KrakenFlex Limited, speaking at the launch of the “Mercury Consortium” at the “UK’s first energy tech superhub”:

Devrim’s presentation was followed by a panel session with representatives of four “manufacturers”, which we will cover at a future date. After a “networking break” there was another panel session with speakers from four “utilities”, introduced by Arshad Mansoor who is President and CEO of the Electric Power Research Institute. Here’s what Arshad had to say:

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Sono Announce AC V2G Wallbox

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On a press release a couple of days ago Sono Motors announced that:

Mobility provider Sono Motors is fulfilling the Community’s desire for an affordable wall charging station, suitable for home charging, vehicle-to-grid (V2G) and vehicle-to-home (V2H) with the first bidirectional AC wallbox on the market. This brings the company a significant step closer to its vision of a world without fossil fuels. The wallbox enables the Sion to be used as a mobile power plant and also to feed stored electricity either back into their house or into the grid itself. Homeowners with photovoltaic systems especially save a large amount of money as they are able to use more of their own electricity without having to buy an expensive home storage system. The Sono wallbox charges and discharges the Sion with up to 11 kW via the integrated Type 2 charging cable, and will save up to 70% of costs incurred by DC bidirectional wallboxes available to date. It is already possible to reserve the new wallbox free of charge, delivery is expected to take place with the Sion start of production in 2023.

This is of course very exciting news, and Sono also address a question that we have been pondering for many years, and which we discussed in detail more recently with the British Standard Institution’s launch of its PAS 1878 specification for home energy management systems:

A home energy management system (HEMS) controls when the Sion is charged and discharged: the wallbox communicates with the HEMS via various protocols such as EEBUS, Modbus or OCPP. A recommendation as to which HEMS are compatible with the Sono wallbox will be available shortly after its sales launch. The Sono app and Sono infotainment can also be used to set the level of the vehicle’s battery at which discharging can be terminated. This ensures that it always has enough range to cover any mobility needs.

The specification for the Sono bidirectional wallbox looks like this:

That all looks very good, but there are a couple of flies in Sono’s ointment. Their wallbox won’t be available until 2023, and there appear to be no plans to release it in the United Kingdom.

What’s more Sono’s copywriter needs a slight slap on the wrist. Here’s a picture of a 22 kW 3 phase bidirectional AC wallbox that has been available off the shelf for over a year!

Here’s Sono’s video explaining the benefits of their forthcoming, albeit less powerful, piece of equipment:

Perhaps Tillman would be good enough to appear in another Sion Motors video with more accurate commentary in the not too distant future?

Finally, for the moment at least, here once again is a dual 22 kW bidirectional AC charging pillar that has been installed in our car park for over two years:

The Future of Vehicle to Grid EV Charging?

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Our title for today is shamelessly plagiarised from an article of the same name on the Electric Nation web site, which begins as follows:

By 2050, up to 45% of households will actively provide Vehicle to Grid (V2G) services, according to National Grid’s Future Energy Scenarios, published in July 2020. But will the average Electric Vehicle (EV) driver be able to use V2G charging over the next few years?

A very good question and a very interesting infographic! The article continues:

The rapid growth in the numbers of electric vehicles on our roads will mean more demand on local electricity networks if EVs are all plugged in at the same time, such as during the peak between 5pm and 7pm in the evening. Smart charging, or ‘V1G’, which allows management of the time when EV charging occurs – as trialled by the original Electric Nation project – will help to avoid this situation.

V2G charging will be more effective than smart charging. This is due to the ability to link EVs together and put significant levels of energy back into the grid at peak times, like a huge decentralised power station. V2G will therefore help to reduce the grid’s need for additional energy generation, typically supplied by fossil fuels at peak times, as well as reducing demand on electricity networks, and allowing EV drivers to use greener and cheaper electricity.

So far so good, I agree entirely. However the next paragraph states:

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IEC 63110-1 Committee Draft for Vote Draws Near

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Please read on to discover the latest news from the smoke filled back offices of the International Electrotechnical Commission’s (IEC for short) electric vehicle standards development committees.

Here once again is the roadmap for the development of the IEC 63110 international standard defining a protocol for the management of electric vehicles charging and discharging infrastructures:

2018-01-IEC-63110-Roadmap

Part 1 of the standard (IEC 63110-1 for short) concerns itself with potential EV charging and discharging use cases. As we have previously mentioned the committee produced a draft document for comment many months ago. The original draft has now been modified to incorporate the suggestions contained in several hundred comments received from around the world. A grand total of zero of those comments emanated from the United Kingdom. The committee is issuing one final call for informal suggestions for further vehicle-to-grid use cases before their next face to face meeting which will be held in Seoul, South Korea starting on June 18th 2019. At that meeting the Committee Draft for Vote (CDV) document for 63110-1 will be finalised, following which the assorted national committees that make up the IEC will vote on the committee’s proposals.

Meanwhile the IEC 63110 part 2 (IEC 63110-2) task force looking into possible options for “message encoding and transmission technology” to be included in the standard are also currently completing their work. It was agreed on the IEC Technical Committee 69 Joint Working Group 11 (TC 69/JWG 11 PT1 and PT2 web conference calls earlier this week that the Seoul meeting should be extended by a day in order to finalise this aspect of part 2 of the standard. By way of example, version 2 of the Open Charge Point Protocol (OCPP 2.0) specifies using JSON encoding over RFC 6455 WebSockets transport, but the task force have been considering a wide range of other possibilities.

Should you have any thoughts on these thorny eMobility topics then please do not hesitate to get in touch at your earliest convenience. After the TC 69/JWG 11 meeting in Seoul these matters will be starting to be set in stone (SSS for short).

Octopus and Ohme Announce a Smart Cable

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This is a piece of electric vehicle smart charging (V1G for short) news rather than directly related to vehicle-to-grid technology. It is extremely interesting nonetheless. In a press release this morning it was announced that:

Octopus Energy and Ohme are today announcing a partnership to offer Octopus Energy customers the chance to have smart charging at home – enabling them to charge any electric car when Octopus’s green electricity is cheapest.

By integrating with Agile Octopus, the UK’s only smart time-of-use tariff, the Ohme cable and app brings smart charging to any home.

Here’s the image of Ohme’s new “smart cable” that accompanied the press release:

OHME_cable_launch

The press release continues:

Once the cable is connected, the driver can just open up the app and enter the amount they would like to charge their car and by when, and then let Ohme manage it for them. For example: “On weekdays, charge my car battery to 100% by 7am”. Ohme then uses the Octopus Agile API to automatically deliver the right amount of electricity when it is cheapest.

By optimising their charging in this smart way, Octopus Energy and Ohme estimate that customers using Ohme in parallel with the Agile Octopus tariff could save around £300 per year on their charging costs in comparison to charging on a typical industry standard variable tariff.

The cable will cost £399, but the first 1,000 Octopus Energy customers get a special launch price of £199.

The Ohme cable is available for pre-order on the Octopus Energy web site. Whilst we wait for them to start shipping the new product, here’s an image of the Ohme app in action:

OHME_app_launch

According to Ohme’s CEO, David Watson:

At Ohme we believe the future of transport is electric and that flexible home charging is the key to mass adoption. Ohme’s innovative smart charging cable is the first App-controlled, intelligent EV charger, that combined with Octopus’ smart energy tariffs, delivers real savings and environmental benefits. All you need to do is plug in and let Ohme do the rest.

I cannot help but think that the likes of Wallbox might well quibble with David’s “first app-controlled, intelligent EV charger” remark? The press release didn’t include a telephone number, but we’ll let you know Ohme’s thoughts on the matter when we manage to get hold of them.

 

[Edit – March 30th]

After desperately doing my due diligence I eventually managed to have a long chat with Ohme’s technical guru, Dan Hollingworth, yesterday evening. As I strongly suspected, the Ohme “smart cable” isn’t actually that smart, by V2G UK’s standards at least. It contains a microprocessor and a 4G modem, not unlike our sister company V2G EVSE’s “smart controller” except that it doesn’t optionally do WiFi, Bluetooth, 2.5 G, 3G, LTE-M and NB-IoT as well.

Ohme’s device doesn’t determine the electric vehicle (EV for short) battery pack’s state of charge by communicating with the EV through the cable. Instead it finds out that useful piece of information by using its 4G modem to communicate with assorted EV original equipment manufacturer’s (OEM for short) cloud platforms, which in turn communicate wirelessly with the EV the Ohme’s cable is plugged into using proprietary protocols.

Ohme’s cloud platform is somewhat smarter since it communicates with National Grid’s Application Programming Interface (API for short) to forecast the “carbon intensity” of the UK Grid and thus determine the “greenness” of the electricity used to charge the EV to which the “smart cable” is attached. Here’s the current output of our open source example of how to go about doing that, generated by the V2G EVSE smart controller:

Screenshot from 2019-03-30 10-05-54

Ohme’s cloud platform also determines the price of electricity on Octopus Energy’s Agile or Go tariffs by communicating with the Octopus Energy API

Ohme’s smartphone application (app for short) allows the EV’s owner to instruct Ohme’s cloud based platform how much charge they’d like in their EV battery pack by when. On the basis of all the information Ohme’s cloud based platform has acquired it then uses version 1.6 of the Open Charge Point Protocol (OCPP for short) to instruct the cable when and how fast to charge the EV it’s connected to. In case it’s of interest here’s our open source smart charging station simulator, based on a mildly modified clone of Thomas Volden’s OCPP 1.6 library over on GitHub:

https://github.com/V2G-Ltd/OCPP-1.6-EVSE-Demo

Does that all make perfect sense now?

Last Call for IEC 63110 Use Case Submissions

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Our regular reader(s) will be aware that quite some time ago I suggested that:

There’s a few more urgent things to be ticked off on the to do list. How about OCPP 2.0 or even fully fledged British and international standards for “smart charging”, V2B and ultimately pukka V2G protocols for starters?

I am happy to now be able to report that my wish has come true! An international standard is now being developed for electric vehicle supply equipment (EVSE for short) communications with the “back office”, including vehicle to grid (V2G for short) functionality. For my sins I now sit on IEC technical committee 69 joint working group 11 (TC69/JWG11 for short). According to the Wikipedia article on the subject, which I wrote:

IEC 63110 is an international standard defining a protocol for the management of electric vehicles charging and discharging infrastructures, which is currently under development. IEC 63110 is one of the International Electrotechnical Commission’s group of standards for electric road vehicles and electric industrial trucks.

You will no doubt be delighted to discover that proceedings are still at a fairly early stage. Here’s the current IEC 63110 roadmap:

IEC-63110-2017-11-24

The top line indicates to the initiated that I am still able to point out that IEC TC69/JWG11 is currently seeking submissions for potential use cases to add to our initial list. The current deadline is December 6th. It is probably safe for you to assume that all the obvious stuff from the Open Charge Alliance’s Open Charge Point Protocol and ISO/IEC’s 15118 protocol is already included on our list.

However if you have a use case that isn’t in amongst the obvious stuff then please do not hesitate to get in touch!

Are you ready?

Nissan Electric Vehicles Prove Popular at UK Universities

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In a news release today Nissan UK point out that:

The all-electric Nissan e-NV200 van has graduated with flying colours to become one of the most popular new vehicle choices for university fleets in the UK.

The multi award-winning van, which costs from just two pence per mile to run and offers zero emissions mobility whilst driving, is now in service on the fleets at more than 20 of the nation’s leading academic institutions.

University of Birmingham was the first fleet operator in the country to take delivery of the model when it added two to its fleet in 2014.

Since then, the University has added four more and the e-NV200 has moved to the top of the of the list for universities and colleges the length and breadth of the UK.

e-NV200s are now in service at universities including Bath, Brighton, Coventry, Dundee, Edinburgh, Exeter, Leicester, Leeds, Manchester, Manchester Metropolitan, Newcastle, Oxford, Sheffield, St Andrews, Swansea, the University of Central Lancashire and the University of Wales.

In addition, a number of other universities across the UK are currently trialling the e-NV200 as they explore the environmental and financial benefits it could have for their fleets.

Many moons ago I lived in Mayals and I’ve studied at Swansea University:

Nissan point out that in Swansea:

The e-NV200 Combi has been introduced as part of a broader commitment to sustainability and is operated as a pool vehicle, available on a booking system, by the information services and systems team.

As part of a seven-strong EV fleet, which also includes four Nissan LEAFs, the e-NV200 has proved a popular choice thanks to its size, flexibility and car-like driving dynamics.

Nigel Morris from the information services and systems team at Swansea University said:
 “Our EV fleet has already been a big success, cutting our carbon emissions by 4.5 metric tons and saving around several thousand pounds in fuel so far.

“The e-NV200 has made a terrific contribution to those figures as it’s proved so popular with staff. It’s a big vehicle that’s got lots of space for cargo or people but it’s very easy to drive.”

This news is all very encouraging of course, but I cannot help but wonder about something Nissan didn’t reveal to us this morning. Which of their long list of UK universities might actively be researching the application of vehicle-to-building or even fully fledged vehicle-to grid technology?

Perhaps the answer is “none of them”, but I am able to reveal that a UK University not mentioned by Nissan is in fact already so doing. Here’s an exterior view of the European Bioenergy Research Institute (EBRI for short) at Aston University:

and here’s what EBRI’s press release from a month or more ago has to say about the bright green box attached to the 24 kWh battery equipped 2014 model year Nissan LEAF pictured above:

Aston University has successfully commissioned the UK’s first permanent electric vehicle to grid (V2G) charging system.

This next generation of electric vehicle charging infrastructure allows power to flow both in the traditional way (grid to vehicle) and in reverse (vehicle to grid). The technology, developed in Japan to improve electricity supply reliability in the wake of the Fukushima disaster, is being investigated in collaboration with our leading industry partners, as a new method for energy storage and grid balancing services in Europe.

Please do read the press release in it’s entirety, and when you’ve done that also take a good look at the user interface of EBRI’s “load matching system”:

Exciting times for V2G enthusiasts here in the United Kingdom! Now that this pilot project is up and running there’s a few more urgent things to be ticked off on the to do list. How about OCPP 2.0 or even fully fledged British and international standards for “smart charging”, V2B and ultimately pukka V2G protocols for starters?

Here’s how the Open Charge Alliance explain the need for “Open Standards”:

The specification for version 2.0 of the Open Charge Point Protocol still seems to be absent from their web site however!