Energy Unwrapped with Mick Wall – Details, episodes & analysis

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Energy Unwrapped with Mick Wall

Mick Wall

Technology

Frequency: 1 episode/12d. Total Eps: 22

Real conversations about heat pumps, tariffs, solar, batteries, and home energy in the UK. Hosted by Mick Wall (Energy Stats UK), this channel breaks down real-world performance, costs, and decisions using actual data from a fully electrified home. For homeowners planning upgrades and installers who want to understand what actually works, each episode helps you make better energy decisions without hype. Looking for a heat pump installer? https://trustedheatpumpinstallers.co.uk/ Website: https://energy-stats.uk Video: https://www.youtube.com/@MickWall

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Data updated on 18/10/2026

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https://mickwall.octopus.energy/
19 shares
https://energy-stats.uk
17 shares
https://www.trustedheatpumpinstallers.co.uk/
17 shares

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Score global : 32%

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Grid Flexibility with Pete Last from Axle Energy

Friday, October 16, 2026 • Duration 58:24

Can you really get paid £1/kWh to help the grid with a home battery? I sat down with Pete Last from Axle Energy to explain how virtual power plants work, and how batteries, EV charging, heat pumps and hot water cylinders can earn money with grid flexibility.In this Energy Unwrapped deep dive we cover what demand flexibility actually means, why wind farms get turned off when it's too windy, how Axle Energy works alongside suppliers like Octopus Energy, what time of use tariffs like Octopus Agile get right, and why a battery without solar can now pay back in 4-5 years. We also dig into smart EV charging, vehicle to grid, heat pump flexibility without losing comfort, and why your hot water cylinder is a 10kWh battery.Whether you have solar battery storage already or you're looking at energy storage, electric cars and how to cut UK energy bills, this is real data on what works, what it pays, and where the numbers don't match the marketing.In this episode:- What is grid flexibility and why wind and solar need it- How Axle Energy's virtual power plant aggregates home batteries, EVs and heat pumps- £1/kWh home battery exports vs 27p price cap explained- Smart EV charging at home and £10/month rewards- Octopus Agile, Octopus Energy and time of use tariffs- Heat pump flexibility, hot water cylinders and whole home energy management#AxleEnergy #SolarBatteryStorage #OctopusAgile #EVCharging #HeatPump⚡ Axle Energy Referral (free to join and £25 sign up bonus)👉 https://vpp.axle.energy/landing/grid?ref=R-ZWPYRZOD📊 Real-world UK energy data, analysis and tools:👉 https://energy-stats.uk🔥 Need help choosing a trusted heat pump installer?👉 https://trustedheatpumpinstallers.co.uk/🎙️ Energy Unwrapped Podcast:👉 https://energy-stats.uk/energy-unwrapped-podcast/⚡ Switch to Octopus Energy👉 https://mickwall.octopus.energy/⚡Switch to E.ON Next👉 https://tidd.ly/4xD3E6R⚡Switch to EDF Energy👉 https://tidd.ly/4a2Xbbr

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Heat Pumps Are Not New | Nathan Gambling | Betatalk

Wednesday, August 26, 2026 • Duration 01:31:48

Heat pumps get talked about like they're brand new technology — they're not. On this episode of the Energy Unwrapped Podcast, I sit down with Nathan Gambling, lecturer in plumbing and heating and host of the Beta Talk podcast, to trace how Britain actually got its heating: from single-room fires, through town gas and the conversion to natural gas, to the combi boiler boom — and how heat pumps have quietly been running in the background the whole time, including one that heated a Norwich building from the River Wensum from 1945 until the 2000s.We get into:- Why "heat pumps are not new" — Graeme Haldane's 1927 experiments and John Sumner's 1945 Norwich heat pump- How Britain's town-gas-to-natural-gas conversion became one of the biggest planned engineering operations in peacetime history- Why Canvey Island became the UK's first LNG terminal- Why radiators were never designed to be scorching hot — and why that still trips people up with heat pumps today- Why the UK became the world's biggest gas boiler market, and what that legacy means for the heat pump transition now#HeatPumps #EnergyUnwrapped #UKHeating #RenewableEnergy #HeatingEngineerI'll leave a link to my trusted heat pump installer directory and the Energy Unwrapped podcast below.📊 Real-world UK energy data, analysis and tools:👉 https://energy-stats.uk🔥 Need help choosing a trusted heat pump installer?👉 https://trustedheatpumpinstallers.co.uk/⚡ Switch to Octopus Energy (we both get £50):👉 https://mickwall.octopus.energy/🎙️ Energy Unwrapped Podcast:👉 https://energy-stats.uk/energy-unwrapped-podcast/

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Mixergy's Pete Armstrong: How Hot Water Cylinders Solve Grid Curtailment

Saturday, August 8, 2026 • Duration 01:08:17

Hot water cylinders are one of the UK's biggest untapped energy storage assets — and most homes don't even know it. In this episode of the Energy Unwrapped Podcast, I sit down with Pete Armstrong, CEO and co-founder of Mixergy, to unpack a decade of engineering behind the smart hot water cylinder.We get into how top-down heating and stratification let a single 200L tank store roughly 10 kWh of usable energy, why there's something like 10 times more energy sitting in the UK's hot water tanks than in Dinorwig's pumped hydro plant, and how curtailed wind power in Scotland could be turned into free hot water for half of Scottish homes instead of being switched off.Pete also walks through why Mixergy moved to local, cloud-independent control, what the upcoming Secure Smart Electricity System regulation means for appliances like this, and where hot water storage sits against home batteries and EVs in the flexibility conversation.#Mixergy #HotWaterCylinder #EnergyStorage #UKEnergy #GridFlexibility #EnergyUnwrapped🎙️ Full Energy Unwrapped Podcast:👉 https://energy-stats.uk/energy-unwrapped-podcast/📊 Real-world UK energy data, analysis and tools:👉 https://energy-stats.uk🔥 Need help choosing a trusted heat pump installer?👉 https://www.trustedheatpumpinstallers.co.uk/⚡ Switch to Octopus Energy (we both get £50):👉 https://mickwall.octopus.energy/

⚡ Axle Energy Flexibility Referral (we both get £25):👉 https://vpp.axle.energy/landing/grid?ref=R-ZWPYRZOD

Golden Rules (best heat pump hot water settings:👉 https://www.youtube.com/watch?v=YTE1NiWCOtk

Future Homes Standard with Nigel Banks of Octopus👉 https://www.youtube.com/watch?v=ln_ZEHDEiJI

The Cheapest Electricity has Moved👉 https://www.youtube.com/watch?v=PodKKVa_BCk

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James Clark | Elite Services Group

Tuesday, July 28, 2026 • Duration 56:39

How does a gas engineer become a heat pump specialist?

In this episode of the Energy Unwrapped podcast, Mick Wall speaks with James Clark of Elite Services Group about his journey from gas engineering into heat pumps and renewable heating.

James explains how his approach to heat pump design and installation developed, the impact of Heat Geek training, and why good installers need to keep learning as the industry changes. We also discuss communication, customer handover, aftercare and the importance of learning from mistakes.

The conversation covers the realities of building and running a renewable heating business, including the Boiler Upgrade Scheme, recruitment, changing technology and the challenge of delivering quality heat pump installations at scale.

James also shares his experience of solar, home batteries, air conditioning and smart electricity tariffs — and explains why the role of a heating installer is increasingly becoming that of a whole-home energy adviser.

In this episode:

James’s journey from gas engineer to heat pump specialist

What makes a good heat pump installer

Heat pump design, training and continuous learning

Heat-loss surveys, installation and customer handover

The Boiler Upgrade Scheme and industry challenges

Running a heat pump and renewable heating business

Solar, batteries and air conditioning

Smart tariffs and the future of home energy

🔥 James and Elite Services Group are part of my Trusted Heat Pump Installer directory

Open Energy Monitor: The Tools Changing UK Energy

Monday, July 20, 2026 • Duration 01:13:07

In this episode of the Energy Unwrapped podcast, I speak to Glyn Hudson and Trystan Lea from OpenEnergyMonitor.

We go back to the early days of OpenEnergyMonitor, from Glyn and Trystan meeting as childhood friends, to building early energy monitoring hardware, hand-soldered circuit boards, open-source software and the arrival of the Raspberry Pi.

We also talk about how OpenEnergyMonitor moved from electricity monitoring into heat pump monitoring, how HeatPumpMonitor.org came about, and the role of John Cantor in helping shape real-world heat pump monitoring.

This is a brilliant conversation about open-source energy monitoring, heat pump performance, billing-grade MID monitoring, manufacturer onboard data, installer learning, community forums, Raspberry Pi, Home Assistant, solar, batteries, EV charging and what better energy data can teach us.

My own OpenEnergyMonitor journey started in October 2018 with an emonPi to monitor my solar. Since then, my setup has expanded to monitor solar, batteries, EV charging, cooking and my Vaillant heat pump. My heat pump was just system number 9 on HeatPumpMonitor.org.

We also discuss what HeatPumpMonitor.org has revealed about good heat pump design, low flow temperatures, weather compensation, commissioning, accurate heat loss, simple system design, MID approved heat meters, onboard manufacturer monitoring, performance guarantees, consumer protection and what comes next for OpenEnergyMonitor.

If you are thinking about getting a heat pump, take a look at my Trusted Heat Pump Installer Directory. I’m continuing to build it out with installers I would personally trust, and there is also a guide on how to choose a good installer.

Links mentioned in this episode:

PredBat Explained | Save More With Your Home Battery

Friday, July 10, 2026 • Duration 01:04:52

Want to save more with your home battery?

In this episode of the Energy Unwrapped podcast, I'm joined by Richard Eyres from PredBat to look at one of the most powerful home battery optimisation platforms available today.

I've personally been running the open-source version of PredBat within Home Assistant for around 18 months, using it to automatically optimise my home battery against solar forecasts, electricity tariffs and household demand. It has genuinely saved me money, but it's always been aimed at enthusiasts.

Now there's a commercial version designed for everyday homeowners.

Richard explains how PredBat Cloud works, demonstrates the onboarding process live, and shows how it can help homeowners save more with their home battery by using solar forecasts, weather data, machine learning and dynamic electricity tariffs.

We also discuss:•

The history of Batpred and how it became PredBat•

Why Home Assistant users love the open-source version•

The new cloud platform and simplified setup•

The 12-month savings guarantee•

Solar forecasting and machine learning•

Intelligent Octopus Go smart charging•

Preventing your home battery discharging into your EV•

Local hub vs cloud connectivity•

GivEnergy support•

Axle Energy virtual power plant integration•

Why independent optimisation may be the future of home energy

🔗 PredBat referral:

https://predbat.com/ref/mick-wall

🔗 Axle Energy referral (£25 joining credit):

How Heat Geek Designs & Installs Heat Pumps with Aadil Qureshi

Tuesday, June 30, 2026 • Duration 01:23:53

Thinking about a heat pump from Heat Geek?

In this episode of the Energy Unwrapped podcast, I sit down with Aadil Qureshi, CEO and co-founder of Heat Geek, to walk through the complete Heat Geek customer journey.

We cover everything from the initial online estimate through to surveying, heat loss calculations, LiDAR scanning, Zero Disrupt design, installation, commissioning, performance guarantees and long-term support.

My Heat Geek Affiliate Link:https://upgrades.heatgeek.com/c/mick-wall

(You won't pay any more, but I may earn a small commission, thank you)

Trusted Heat Pump Installers Directory:

https://www.trustedheatpumpinstallers.co.uk/

📊 Real-world UK energy data, analysis and tools:

👉 https://energy-stats.uk

⚡ Switch to Octopus Energy (we both get £50):

👉 https://mickwall.octopus.energy/

🎙️ Energy Unwrapped Podcast:

👉 https://energy-stats.uk/energy-unwrapped-podcast/

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The OG Heat Pump YouTuber | Emilie Romain

Friday, May 22, 2026 • Duration 53:14

Emilie Romain was talking about heat pumps on YouTube before almost anyone in the UK knew what they were. In this episode of Energy Unwrapped, Mick sits down with the OG heat pump content creator to hear how an accidental career pivot led her to front EcoBubl's videos in full overalls, why she thinks too many people gatekeep renewables by keeping it technical, and what it's like returning to an industry that's finally caught up with her.

They also get into women in the trades, the shifting public mood around heat pumps, and Emilie's new role at Midsummer Energy helping homeowners find solar.

A great listen for anyone on their own renewable energy journey.

📊 Real-world UK energy data, analysis and tools:

👉 https://energy-stats.uk

🔥 Need help choosing a trusted heat pump installer?

👉 https://www.trustedheatpumpinstallers.co.uk/

⚡ Switch to Octopus Energy (we both get £50):

👉 https://mickwall.octopus.energy/

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The Holy Trinity – LIVE at The Heat Pump Show

Friday, May 15, 2026 • Duration 46:54

This episode is a little different — recorded LIVE at The Heat Pump Show in Newark (April 2026), where I joined an expert panel discussion on what’s becoming known as:⚡ The Holy Trinity ⚡Solar PV + Battery Storage + Heat Pump

Hosted by Simon Roberts from Heatio, this conversation dives deep into how these technologies work together to reduce running costs, improve comfort, optimise energy usage, and reshape the future of home electrification.

Joining me on the panel were:

🔹 Andy Rankin — Midsummer

🔹 Daniel White — MCS

🔹 Sean Hogan — Aventus Eco

We discuss:

Solar + battery + heat pump integration

Smart tariffs & energy optimisation

Running costs vs upfront costs

Home batteries & energy storage

Heat pump comfort & efficiency

Consumer education

Future energy systems

Energy as a service

The future of electrified homes

A huge thank you to Midsummer for organising The Heat Pump Show and inviting me to be part of the panel.

Special thanks as well to Aventus Eco and Refurb & Retrofit Magazine for kindly allowing me to use recordings from the discussion.

Aventus Eco:

https://aventuseco.com/

https://www.youtube.com/@aventus-eco

Heat Loss with Steph Willis from Spruce

Sunday, May 3, 2026 • Duration 50:45

In this episode of Energy Unwrapped, Mick Wall is joined by Steph Willis from Spruce to unpack one of the most misunderstood parts of heat pump design: heat loss calculations.

They explore why heat loss surveys matter, how outdated ventilation assumptions have led to oversized systems, and why many homeowners may have been quoted for larger heat pumps — and more radiator upgrades — than they actually needed.

Topics include:

- Fabric vs ventilation heat loss

- Why old guidance produced inflated heat loss figures

- The real impact on heat pump sizing and system costs

- Air changes, blower door tests & infiltration

- Why accurate surveys matter for installers and homeowners

- How better heat loss calculations could reduce disruption and improve heat pump adoption

A practical and honest conversation for homeowners, installers, and anyone interested in heat pumps, retrofit, and home energy efficiency.

📊 Real-world UK energy data, analysis and tools:

👉 https://energy-stats.uk

🔥 Need help choosing a trusted heat pump installer?

👉 https://www.trustedheatpumpinstallers.co.uk/

⚡ Switch to Octopus Energy (we both get £50):

👉 https://mickwall.octopus.energy/

🎙️ Energy Unwrapped Podcast:

In-depth conversations with installers, engineers and industry experts — breaking down what actually works in UK homes.

Energy Unwrapped with Mick Wall – Details, episodes & analysis

Podcast details

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Energy Unwrapped with Mick Wall – Details, episodes & analysis

Podcast details

Recent rankings

Apple Podcasts

Spotify

Shared links between episodes and podcasts

Other33

YouTube10

RSS feed quality and score

Publication history

Latest published episodes

Similar podcasts and content

Related Shows Based on Content Similarities

Apple Podcasts

Spotify

Related Shows Based on Content Similarities

Other33

YouTube10