To remain within Parliamentary protocols @toodles I've just removed the Clerk's name.

But you've done well.
The 'competing voices' he refers to are companies in the Energy Sector, lobbyists and the host of organisations who receive grants to push their own green agendas.

It's much less common for individuals to communicate with a Select Committee.

Let's keep looking to see other Committee Members being announced.
It's possible that an MP on the ESNZ Committee might represent a constituency of someone here on the forum.

@transparent Thank you @transparent - I wouldn’t want to upset the applecart! Protocols remain as they should be then! Toodles.

E.ON has launched their Cosy Octopus copy tariff product, 'E.ON Next Pumped' with 2x3hr low rate periods, 4am-7am & 1pm-4pm, just like the original Cosy. Come on E.ON, keep up, the market's moved on babe - Cosy now offers 3 low rate periods 2x3hr + 1x2hr.

Doing the maths crudely, the 24hr weighted average per kWh on E.ON Next Pumped is 22.78p/kWh and on Cosy Octopus is 21.07p/kWh assuming you flat line your import at constant load. So with 6hrs on Pumped @ 11p/kWh vs 8hrs on Cosy @ 11.6p/kWh it's a no-brainer to stick with Cosy, especially if you load shift and/or have BESS.

These cost examples include VAT@5% but exclude standing charges, which tend to be historically quite high with E.ON.

https://www.eonnext.com/tariffs/next-pumped

Thank you @allyfish, as you suggest Cosy (MK2) is where I am staying for the present. Toodles.

Hi, does anybody use the Octopus Cosy tariff without a battery setup, and if so is there much of a saving, thanks

@potatoman. Last month was my first full month with the heat pump .The split tuned out at 190Kwh @ Cosy standard tariff, 140 @ cheap tariff & 50 at high rate. I should receive the November bill any day and will report again.

@broadsman hi that is interesting can you confirm you do not have a battery backup

No battery yet as I cannot get the "return on capital" figures to work over a reasonable time period at the moment.

Hello Everyone - new member downfield here.

We have a 220m2 4 bed / 2 bath timber-framed barn property near Hertford.

We have installed the following since May 2023:

Heating: 14kW Mitsubishi Zubadan with 210l Mixergy tank.  

Solar/batteries: 24 solar panels 9kWp (10 east/14west ) with 2x 9.5kWh GivEnergy batteries and 5kW Hybrid inverter.

Emitters: all the rads changed to Jaga Strada fan-assisted units, including one 3m trench (mini-Canal) rad under a floor to ceiling bay window.  We have found these to be excellent as they happily run at low flow temps.  Currently at 36C in this cold snap with outside temps just above zero.

Bay windows: we have two large 3.6m x 3.6m bay windows (ex tractor doors) which were triple-glazed in 2005

Vacuum glazing:  the other windows are small Georgian-type multipane.  I discovered Landvac vacuum glazing last year and have installed vacuum units in 11 windows.  The vacuum units are 2 panes of 4mm glass with a 0.4mm gap so perform nearly as well as triple glazing but can be retro-fitted into existing frames without significant change to the appearance of the property.

We switched to Octo's Agile tariff on 23 Dec 2023 and benefitted from some very low rates over the Xmas/New Year period.  Since then I use Octo's Compare app (does everyone know about this?) to monitor and record my daily usage and compare savings against Octo's Flexible tariff.

Results so far:  since switching to Agile we have imported 9646kWh costing £1440 giving an average cost of 14.9p/kWh. 

I have an EV (Smart#1) which has used about 2400kWh in the same period (8000 miles), so my usage for the house is around 7246kWh costing £1080.

Solar generated 6550kWh of which I exported 2604kWh at 15p earning £390.

So net energy costs for the house = 1080 -390 = £690 for 11 months.

Capex:

Heating - £12k after BUS grant.

Solar/batteries:  £19k

Jaga rads:  £8k

Vacuum glazing:  £5k

Happy to answer questions if anyone needs further detail.

Posted by: @broadsman

↑

No battery yet as I cannot get the "return on capital" figures to work over a reasonable time period at the moment.

Two recent discussions on this forum looked at the figures and different approaches:

See A Business Case for a Battery
and Battery Sizing - How low can you go.

Please feel free to add your observations, comments and questions to either of those topics, rather than here, where we're discussing Domestic Energy Suppliers.
Don't worry too much about the 'correct' technical wording.
You will receive responses at whatever depth of technicality you feel happy with.

Last month was my first full month with the heat pump .The split tuned out at 190Kwh @ Cosy standard tariff, 140 @ cheap tariff & 50 at high rate. I should receive the November bill any day and will report again.

Updated figures just received; Standard tariff, 429 Kwh; Cheap rate. 263Kwh; expensive rate 119 Kwh. We mostly cook at mid-day, use the dryer and dishwasher anytime outside the expensive period.  Standard tariff was, 24.58p p Kwh, my average 22.13Kwh, so Cosy gave a 10% saving.

I have been with octopus Go, as I can shift my usage to any time of the day, but I found this tariff yesterday. Has anybody heard of tomatonenrgy?