Rota Disconnections
Ive just noticed this term, Rota Disconnections, on my electricity bill for the first time.
It presumably tells me where in the priority order my supply would be if general power cuts had to be made.
I've always thought that heat pumps should not just be disconnected from the mains to turn them off but shut down via the control panel, before switching off the power supply. Is this correct and is it true that the pump can be harmed if you don't follow that procedure? If so what are the implications for general power cuts and protecting heat pumps. Would they have to be timetabled so that heat pumps could be shut down correctly in advance?
Or am I worrying uneccessarily?
Mike
Grant Aerona HPID10 10kWh ASHP
I’ve not heard of these Rota Disconnections either; however, I have noticed that on the Tesla app that takes care of my 2 x Powerwall 2’s and under the heading of ‘Impact’ / ‘Backup History’, my system has experienced 12 events since February totalling 7 minutes; the longest was 2 minutes but most were a few seconds in duration. I was totally unaware of these events (as should be the case I believe) but I was rather surprised to see how many there were! We have rather ‘tired’ supply cables in the road and the SSEB have attended one or other spot in the pavement every week or so over the last few years so I am expecting a complete shut down sometime whilst the infrastructure receives a little TLC. The cabling is very much patched up but any original sections are over 90 years old now. We did have a complete loss of supply one day during Covid restrictions and could not heat the house nor heat up any food for some 12 hours that day; of course, had we had a Powerwall setup then…. Regards, Toodles.
Toodles, 76 years young and hoping to see 100 and make some ROI on my renewable energy investment!
Modern monobloc heat pumps will not be harmed by power cuts. They don't have a refrigerant pump down system as the low charge quantity doesn't necessitate. We get multiple power cuts a year as the underground cabling in the village is post WW2 paper insulated aluminium conductors. These were developed when copper was scarce and expensive. Their useable life expired a long time ago. Over time the dielectric properties of the paper breaks down, with the resulting short circuit in the cable popping the fuse in the sub-station and blacking out the properties the cable supplies. Northern Powergrid are forever digging the roads and paths up in the village and splicing patches in. The whole lot needs ripping out and replacing, but they have shareholders dividends to pay and Board of Directors' remuneration to meet, so network maintenance is a low priority.
@allyfish Well, of course shareholder’s dividends and Fat Controller’s Bonii (plural of bonus!;-) ) are of a far higher priority than customer service! Regrets, Toodles.
Toodles, 76 years young and hoping to see 100 and make some ROI on my renewable energy investment!
- 25 Forums
- 1,513 Topics
- 31.8 K Posts
- 42 Online
- 1,283 Members
Join Us!
Latest Posts
-
RE: Ecodan ASHP - How to optimise my set up?
That would seem logical, however do you know if the FTC...
By rhh2348 , 26 seconds ago
-
RE: Ecodan - flow rates, sensors, settings
As mentioned above, the one I have 1) has the MITSUBISH...
By rhh2348 , 10 mins ago
-
RE: Additional Battery v Wind Turbine v Ripple
I should add, being an investment, the value of your in...
By Old_Scientist , 7 hours ago
-
RE: Delivering a smart and secure electricity system: government consultation
@Transparent.Now that I am represented by a new MP I th...
By IanMK13 , 15 hours ago
-
RE: Vaillant aroTHERM plus not level or flat - what base is best under an external unit?
Similar thread here
By Johnmo , 16 hours ago
-
RE: VDI 2035 heating water specification
Been looking and it seems a good little project. Ever...
By Johnmo , 2 days ago
-
RE: Do I accept an ASHP and Solar Panel retrofit under the HUG 2 scheme?
Will do. I'm currently waiting for another survey / vis...
By dssr , 2 days ago
-
The company that did the borehole were expecting us to ...
By Johnmo , 2 days ago
-
-
RE: The Misquote That Ruined the Heating Industry
@abernyte manufacturer training is pretty average. They...
By Mars , 2 days ago
-
-
RE: ECO4 Scheme and EPC ratings
@mellow Thanks. Given there is a scheme requirement to ...
By Old_Scientist , 3 days ago
-
RE: Do I just go with the lowest quote for my heat pump?
@jancold To me its a no-brainer then, a max 40C flow te...
By bontwoody , 4 days ago
-
-
RE: Heat Pump Books Beginners – Bodge Buster & From Zero To Heat Pump Hero
@editor Presumably he had some good weather Compensatio...
By Toodles , 4 days ago
-
RE: New Vaillant 7kW aroTherm ASHP or oil boiler dilemma/decision??
Storage capacity really is dependent on storage tempera...
By Johnmo , 4 days ago
-
RE: HP Cycling, Expected or Undesirable
Just a little update. I ordered a longer shielded twin ...
By bontwoody , 4 days ago
-
RE: Domestic hot water timer doing crazy things on my Grant Aerona3 10kW air source heat pump
Thanks @allyfish for the pics and info. Spoke to the in...
By Mellow , 4 days ago
-
RE: Aira Heat Pump: Stylish Scandinavian Heating
It's been a busy day for calls and emails from Aira. I ...
By MikeH , 5 days ago
-
RE: Heat Pump Servicing & Maintenance – Good Value or Rip-Off?
Hmm. A bit of a nuanced answer, methinks. As I've alr...
By Majordennisbloodnok , 5 days ago
Latest Topics
-
Ecodan - flow rates, sensors, settings
By rhh2348 14 hours ago
-
Replacing mains water with well water
By Johnmo 2 days ago
-
Additional Battery v Wind Turbine v Ripple
By bontwoody 2 days ago
-
By jamespipe 3 days ago
-
VDI 2035 heating water specification
By Johnmo 3 days ago
-
Do I just go with the lowest quote for my heat pump?
By Jancold 5 days ago
-
The Misquote That Ruined the Heating Industry
By Alec Morrow 6 days ago
-
Battery Storage Wiring Gauge Question
By Puff 6 days ago