Simon Richardson

@renewablesmiffy @AuroraGroove @afneil Thanks Chris. Your explanation was helpful.

@simrich99 @AuroraGroove @afneil Simon describe it as you wish. I follow the industry

Meaningless since we can’t store any excess to use on days when the wind is weak or close to zero. Get back to me in January when we could be in the middle of a dunkelflaute.

@AuroraGroove @renewablesmiffy @afneil Thanks Aurora. Describing power stations in terms of their power output makes absolute sense, but for batteries their power output and energy storage are both required to be meaningful imho.

@simrich99 @renewablesmiffy @afneil It is context dependant: Andrew Neill was quoting a tweet about power generation so it makes sense to respond in terms of installed power capacity of batteries. Of course if you want to know how long that power can be provided, you have to also look at the energy capacity.

@renewablesmiffy @afneil Ah, thank you. That is very helpful. I wondered if that was the reason! But power generation and energy storage are different. Surely, for a battery both parameters are required?

@simrich99 @afneil No different to how we describe generation.

@renewablesmiffy @afneil Yes, I understand the difference between energy and power. I am confused when people describe battery storage in units of power rather than energy. Am I missing something? Thank you for answering my questions.

@simrich99 @afneil GW is the rated capacity. GWh are the units of output

@renewablesmiffy @afneil I’m not questioning your expertise, Chris. I’m just asking for your help in explaining what is meant when battery storage is quoted in GW. Is this shorthand for GWh?

@simrich99 @afneil and I answered you Simon. I am an electrical engineer who started working in the industry in 1987

@renewablesmiffy @afneil I was asking a genuine question, Chris. Installed capacity requires knowledge of both the electrical energy stored and power output. I see battery storage quoted in GW all the time - I wonder whether the author means GWh? BTW - I am a retired engineer.

@simrich99 @afneil Installed capacity chap. Come on this is basic stuff.

@Towlie1981 @afneil Carlo, why are you using units of power to answer an energy storage question? I see this done a lot and it does not make engineering sense.

@afneil NESO literally green lit over 30GW of battery storage today, to be connected by 2030. Not to mention the 4-6GW of LDES projects in the pipeline. Storage capacity will grow exponentially in the next 10 years and this problem will disappear.

@renewablesmiffy @afneil Why have you answered a question about energy storage in units of power?

@afneil I have no idea how 43% of generation is “useless” On storage we have 5GW battery storage with 17GW in development and construction 2.8GW pumped storage with 8GW in development

@sainsburys Your CEO’s office has my email address. If you wish to communicate,you are welcome to contact me there.

@sainsburys Please do not contact me via DM. I’ve already received messages from scam accounts impersonating you, and I won’t risk further exposure through unsecured channels.

@Sainsburyworker @sainsburys @CitizensAdvice Thanks for being honest — sounds like it’s tough for staff and customers both. From what I’ve seen, it feels like the culture doesn’t help anyone. Hopefully, by sharing my experience, Sainsbury’s will listen and make changes. Everyone deserves better than scripted responses.

@simrich99 @sainsburys @CitizensAdvice At Sainsbury is not good at engaging with both customers & staff Simon Robert’s or CEO is absolutely useless

As I’ve had no meaningful response from @sainsburys CEO’s office, I’ve now reported the incident to Trading Standards via @CitizensAdvice, who have accepted the case without hesitation.

Still no contact from @sainsburys CEO’s office, despite promising to be in touch “shortly.” I’ll honour the 7-day window I gave them but in the meantime, I’ve prepared a report for the @TheFCA regarding payment security and pre-auth handling. #ConsumerRights #RetailTransparency

@masasakano Many thanks for your support, Masa

@simrich99 That's appalling... Sorry to hear you had to put up with the incident.

The incident involved a £100 pre-authorisation being held after no fuel was dispensed. The store manager refused to cancel it, said she “didn’t trust me,” and left the pump live — a serious payment security issue. This has taken hours to resolve with my bank.

@Sainsburys Transcript of conversation with store manager of Watford Dome roundabout store explaining why she would not cancel my transaction after petrol pump failure #EqualityAct2010 #EHRC

@Sainsburys This is what your bank statement will look like if a petrol pump fails at a Sainsbury store. £33.57 is when I filled up at a different pump. £100 is the pre-auth charge that Sainsbury’s refused to cancel #TradingStandards

@Sainsburys This is what a failed petrol pump looks like after it has taken £100 pre-authorisation but not provided any fuel. The pump registering “Closed” means this is a pump failure but Sainsburys refused to take any responsibility or cancel the transaction. #TradingStandards

’m not seeking compensation — just accountability. I expect a proper investigation into the handling of this incident, including staff conduct and payment security procedures, and a clear explanation of what changes will be made to prevent this happening again.

@Sainsburys Thank you for your responses, but I’ve been unable to obtain an email contact to escalate my complaint properly. As a result, I’ll now be contacting your CEO, @simonroberts0, directly. This relates to a failed pay-at-pump transaction and serious service concerns.