Mick Wall
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zarch1972.bsky.social
Mick Wall
@zarch1972.bsky.social
Husband, Dad, Wednesdayite, Retro Fan & Geek.

Creator of @energystatsuk website.

Claim £50 of free Octopus Energy credit after signup: https://share.octopus.energy/linen-pearl-869
Reposted by Mick Wall
The story of my #heatpump journey. Big thank you to all the bluesky folk who have helped on the way!
NEW: Helen Jeffrey was excited to have a heat pump installed after moving home - but something wasn't right. It was costing her far more than expected.

So she decided to investigate. And soon met an internet stranger who was able to help.

MY LATEST: www.thereengineer.pro/p/an-interne...
‘An internet stranger helped solve my heat pump puzzle’
Gadgets can monitor heat pumps and reveal their workings
www.thereengineer.pro
March 6, 2025 at 9:09 AM
Reposted by Mick Wall
People of Bluesky!! How do you track your central heating, if you do? Spreadsheet and regular meter readings? Heat meters on your pipes? A smart meter? Anything more unusual?

PLEASE TELL ME! Working on a story about this.
February 27, 2025 at 2:26 PM
It happened, Nathan finally got me on the Beta Talk podcast.

“Don’t drink, don’t smoke, what do you do?”

betatalk.buzzsprout.com/509671/episo...

We spoke for ages about a load of stuff and mentioned a ton of people.

@octopus.energy @energystatsuk.bsky.social @openenergymon.bsky.social
Expert Heat Pump Customers - Mick Wall Interview - BetaTalk - The Renewable Energy and Low Carbon Heating Podcast
Nathan interviews Mick Wall, a self-proclaimed 'heating nerd,' about his experiences with a heat pump expertly installed by Damon Blackmore, a renowned engineer. Mick's story, like those of Trystan an...
betatalk.buzzsprout.com
January 5, 2025 at 10:26 AM
Reposted by Mick Wall
Greener Nights/Mornings Score by Octopus Energy

Aimed to forecast how green the grid will over the coming nights

Could you delay your overnight usage until a greener morning?

For more information about Greener Days visit:
https://energy-stats.uk/octopus-greener-days/
December 21, 2024 at 12:05 PM
Reposted by Mick Wall
National average pricing for Octopus Energy Agile Tariff: Sun 22-12-2024

Min: -1.5p (01:30)
Max: 31.4p (17:00)
Avg: 7.1p
Avg Excl Peak: 4.0p
Peak 4pm-7pm: 28.0p

Get graphs & pricing for all 14 UK regions at www.energy-stats.uk
December 21, 2024 at 4:09 PM
Reposted by Mick Wall
Yesterday, Wed 18-12-24.

Wasted wind cost Britain: £12,614,972

£4,172,190 switching off wind turbines

£8,442,781 buying energy elsewhere

That's 84,887 MWh of green electrons: enough to power 2 Londons for a day.

Powered by: wastedwind.energy
December 19, 2024 at 7:38 AM
Reposted by Mick Wall
National average pricing for Octopus Energy Tracker Tariff (SILVER-24-10-01)

Recent Pricing
Thu 19 Dec, Elec:20.39p, Gas:5.76p
Wed 18 Dec, Elec:20.0p, Gas:5.79p
Tue 17 Dec, Elec:23.02p, Gas:5.7p

Get graphs & pricing for all 14 UK regions at www.energy-stats.uk
December 19, 2024 at 7:30 AM
Reposted by Mick Wall
Yesterday (Tue 17/12/2024).

Wasted wind cost Britain: £6,733,406

£1,707,773 switching off wind turbines

£5,025,632 buying energy elsewhere

That's 45,428 MWh of green electrons: enough to power London for a day.

Powered by: wastedwind.energy
December 18, 2024 at 10:12 AM
Reposted by Mick Wall
Greener Nights/Mornings Score by Octopus Energy

Aimed to forecast how green the grid will over the coming nights

Could you delay your overnight usage until a greener morning?

For more information about Greener Days visit:
https://energy-stats.uk/octopus-greener-days/
December 18, 2024 at 12:05 PM
Reposted by Mick Wall
Was wondering why my DHW COP was so poor on @openenergymon.bsky.social but thanks to @zarch1972.bsky.social excellent blog - energy-stats.uk/arotherm-plu... - I realised I've been running it on normal as opposed to Eco. Will be interested to see what difference it makes. emoncms.org/app/view?nam...
Arotherm Plus Hot Water Modes | Energy Stats UK
This article explains the 3 DHW (direct hot water) modes on the Arotherm Plus heat pump; Eco, Balance and Normal. And why you'd choose one over the other.
energy-stats.uk
December 17, 2024 at 10:40 AM
Reposted by Mick Wall
National average pricing for Octopus Energy Agile Tariff: Mon 16-12-2024

Min: -0.6p (05:00)
Max: 38.1p (16:30)
Avg: 16.5p
Avg Excl Peak: 13.5p
Peak 4pm-7pm: 36.0p

Get graphs & pricing for all 14 UK regions at www.energy-stats.uk
December 15, 2024 at 4:09 PM
Reposted by Mick Wall
Greener Nights/Mornings Score by Octopus Energy

Aimed to forecast how green the grid will over the coming nights

Could you delay your overnight usage until a greener morning?

For more information about Greener Days visit:
https://energy-stats.uk/octopus-greener-days/
December 15, 2024 at 12:05 PM
The Tracker tariff rollercoaster. 🎢
National average pricing for Octopus Energy Tracker Tariff (SILVER-24-10-01)

Recent Pricing
Sun 15 Dec, Elec:19.6p, Gas:5.85p
Sat 14 Dec, Elec:24.38p, Gas:5.85p
Fri 13 Dec, Elec:32.63p, Gas:6.01p

Get graphs & pricing for all 14 UK regions at www.energy-stats.uk
December 15, 2024 at 9:11 AM
I spy with my little eye 22:30. 👀

Looks like it might be worth hanging off a day with any big charging? 🚗
National average pricing for Octopus Energy Agile Tariff: Sun 15-12-2024

Min: 0.0p (22:30)
Max: 35.2p (17:30)
Avg: 13.8p
Avg Excl Peak: 10.9p
Peak 4pm-7pm: 33.4p

Get graphs & pricing for all 14 UK regions at www.energy-stats.uk
December 14, 2024 at 4:11 PM
Reposted by Mick Wall
My latest video is up. In this one, I look at how my low flow temperature actually uses *less gas* than the traditional 70° flow temperature that I'm told is better!

youtu.be/lig23gactEo
Does low temperature heating actually use more gas or is that a myth?
YouTube video by Tomas McGuinness
youtu.be
December 13, 2024 at 10:04 PM
Do you hot water runs in the afternoon for best COP they say!!

Well, not much in it during the winter so far.

Especially if you do the hot water runs on cheaper rates. Just keep them overnight?

Interesting numbers from my Mixergy and 5kW Arotherm in Eco mode (to 45C target) since 1st November.
December 13, 2024 at 1:24 PM
Reposted by Mick Wall
National average pricing for Octopus Energy Tracker Tariff (SILVER-24-10-01)

Recent Pricing
Tue 10 Dec, Elec:26.95p, Gas:6.22p
Mon 09 Dec, Elec:24.34p, Gas:6.34p
Sun 08 Dec, Elec:21.2p, Gas:6.33p

Get graphs & pricing for all 14 UK regions at www.energy-stats.uk
December 10, 2024 at 7:30 AM
At what point can you have one thermostat too many @tomasmcguinness.bsky.social ?

Searching for the source of truth!! 😆

Got a Xiaomi,
@openenergymon.bsky.social emonTH, Tado and the
Vaillant Sensocomfort all logging into
Home Assistant

All there or thereabouts.

@energystatsuk.bsky.social
December 7, 2024 at 11:04 AM
Great day at the Mercury Consortium announcement at Kraken in Manchester with @octopus.energy

Great to meet @garydoessolar.bsky.social
@raimonick.bsky.social
@sarahgogreen.com

@energystatsuk.bsky.social on Tour!! 🤣
December 5, 2024 at 7:32 PM
Reposted by Mick Wall
Solar PV & Electric Stats for November 2024

Generated: 121 kWh
Consumed: 921 kWh
Imported: 810 kWh
Exported: 10 kWh

ASHP: 343 kWh
EV: 110 kWh
Induction Cooker: 29 kWh
Dishwasher: 20 kWh
Tumble Dryer : 18 kWh
Washing Machine: 25 kWh
To Batteries: 470 kWh

*thread*
December 2, 2024 at 9:35 AM
Reposted by Mick Wall
ASHP Usage/Performance November 2024
(Real world 1930s 3 bed semi detached house)

Electric In: 343 kWh
Heat Output: 1434 kWh

Overall Monthly COP 4.18
Heating COP 4.34 (74% of usage)
Hot Water COP: 3.82 (26% of usage)
250L @MixergyLtd cylinder to 45C, 2 runs a day (1am and 1pm)

** thread**
December 2, 2024 at 9:58 AM
Reposted by Mick Wall
National average pricing for Octopus Energy Tracker Tariff (SILVER-24-10-01)

Recent Pricing
Fri 29 Nov, Elec:25.23p, Gas:6.38p
Thu 28 Nov, Elec:26.0p, Gas:6.42p
Wed 27 Nov, Elec:26.33p, Gas:6.46p

Get graphs & pricing for all 14 UK regions at www.energy-stats.uk
November 29, 2024 at 7:30 AM
Reposted by Mick Wall
National average pricing for Octopus Energy Agile Tariff: Tue 26-11-2024

Min: 14.0p (01:30)
Max: 54.8p (16:30)
Avg: 26.2p
Avg Excl Peak: 22.8p
Peak 4pm-7pm: 48.7p

Get graphs & pricing for all 14 UK regions at www.energy-stats.uk
November 25, 2024 at 4:49 PM
Reposted by Mick Wall
Sad to see a brand new 1.1GW wind farm being switched off most of this very windy weekend when it should be generating at near full capacity.

Explore 👉 renewables-map.robinhawkes.com
November 25, 2024 at 10:57 AM
Reposted by Mick Wall
National average pricing for Octopus Energy Agile Tariff: Mon 25-11-2024

Min: -2.2p (02:30)
Max: 40.3p (16:30)
Avg: 16.2p
Avg Excl Peak: 12.9p
Peak 4pm-7pm: 38.0p

Get graphs & pricing for all 14 UK regions at www.energy-stats.uk
November 24, 2024 at 4:09 PM