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Rachael

@techpoodle.bsky.social

2.6K followers 2.1K following 150 posts

💡 Electronics Engineer | 🌿 Nature & Animal Lover | 🌞 Renewable Energy Advocate | 🌍 Climate Action Enthusiast | 🌈 LGBTQ+ Working towards a sustainable future through technology and innovation. No DM's unless I know you!

Posts Replies Media

Rachael @techpoodle.bsky.social · 12/10/2025

I went out to feed the feral kitty we've been looking after for the last few years and saw a lil bee sitting motionless in the entrance to her feeding hut 😟 A teaspoon of sugary water and she was happily tucking in. 15 mins later she flew off! 🐝😊

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Rachael @techpoodle.bsky.social · 10/01/2025

The results are in for our ASHP for 2024. We have a combined SCoP of 4.4 (heating + HW) for the whole year which I am happy with. If we exclude hot water the SCoP is 4.7. I will caveat this with this is built in monitoring. I meant to post this sooner but 2025 has started a bit busier than hoped!

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Rachael @techpoodle.bsky.social · 24/11/2024

So this morning at 07:00 to 09:00 Octopus Energy were giving away free electricity over and above standard usage for that day/time because of all the excess renewable with it being so windy. Obviously the best thing to do is dump electricity to the grid before hand and then charge up for free! 😜

Screenshot from my Powerwall app showing I em exporting to the grid at 19.3kW.

Screenshot from my Powerwall app showing I em importing to the grid at 20.8kW.

Screenshot from my Powerwall app showing the plan being executed perfectly. We charge up in the cheap rate at 7.5p/kWh, export when that ends at 15p/kWh, and then fill up again with free electricity because we usually use 0 from the grid in this period due to the batteries.

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Rachael @techpoodle.bsky.social · 23/11/2024

Those of you familiar with my Twitter posts from when I had our air-to-air system(s) installed will know I have had no end of trouble with these. When they work they're great, but we have had numerous refrigerant leaks and it seems it's very likely to have sprung another! FFS 🤬

Screenshot from my Daikin ONECTA app showing that the upstairs air-to-air system has thrown an F3 error.

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Rachael @techpoodle.bsky.social · 21/11/2024

That would have been nice! Not -6C here but cold enough so with very little solar today we ran out 4 Powerwalls... 😩

Screenshot from the battery status page of the Tesla Powerwall app showing a steady discharge throughout the day and running our this evening.

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Rachael @techpoodle.bsky.social · 20/11/2024

It looks like the tedious Muskbots have arrived on BlueSky... 🥱

Screenshot of a fake Elon Musk account following me.

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Rachael @techpoodle.bsky.social · 16/11/2024

I did a thing! Those if you familiar with my battery system from my Twitter posts, can you spot what it is?

Screenshot from my Tesla app showing the Powerwall's charging.

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Rachael @techpoodle.bsky.social · 10/11/2024

My heat pump stats for the last week. The average outside temperature as measured by our weather station was 9.4C. The heating COP was 5.2, the DHW COP was 2.9, for a very respectable combined COP of 4.8. Although these figures are great the hot water needs optimising as it has room for improvement.

Graph from my Ecowitt app of the outside temperature over the last week. The average outside temperature is shown as 9.4C.

Screenshot from my myVaillant app showing my Air Source Heat Pump stats for heating only for the last week. Electricity in 52kWh, Environmental Yield 220kWh, total heat output into the home 272kWh, overall weekly average COP 5.2.

Screenshot from my myVaillant app showing my Air Source Heat Pump stats for hot water only for the last week. Electricity in 12kWh, Environmental Yield 23kWh, total heat output into the cylinder 35kWh, overall weekly average COP 2.9.

Screenshot from my myVaillant app showing my Air Source Heat Pump stats for combined heating and hot water for the last week. Electricity in 64kWh, Environmental Yield 243kWh, total heat output 307kWh, overall weekly average COP 4.8.

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Rachael @techpoodle.bsky.social · 03/11/2024

Looking at our ASHP data for Oct 2024, our Vaillant Arotherm+ consumed 242kWh of electricity and supplied 1168kWh of heat for a combined COP of 4.8. Heating only COP was 5.4 and hot water only COP was 3.2. The electricity was all supplied from either PV or stored off-peak electricity.

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Rachael @techpoodle.bsky.social · 03/11/2024

In June this year the Ripple Energy wind farm at Kirk Hill started generating. We'd been waiting a while for it to go online but sadly it didn't start before the energy crisis. However, since June our share has generated 4.4MWh of electricity and produced the equivalent CO2 reduction of 334 trees 🌳🌲

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Rachael @techpoodle.bsky.social · 20/09/2024

Bluesky now has over 10 million users, and I was #1,730,852!

A virtual certificate with text "Celebrating 10M users on Bluesky, #1,730,852, Rachael ‪@techpoodle.bsky.social‬, joined on Oct 27, 2023"

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Rachael @techpoodle.bsky.social · 18/02/2024

Yesterday the average outside air temperature was 10.6C. Our Air Source Heat Pump used 9kWh of energy to deliver 42.9kWh of heat to the home and produce 4kWh of hot water for a combined COP of 5.2. The heating only COP was 5.4 and the DHW COP was 4.0. #RenewableEnergy

Image from the Ecowitt weather station app showing the average outside air temp yesterday (17th Feb 2024) was 10.6C with a high of 13.8C and a low of 8C.

The energy graphs from the myVaillant app showing our heat pump yesterday had a combined COP of 5.2 for heating and hot water.

The energy graphs from the myVaillant app showing our heat pump yesterday had a COP of 5.4 for heating.

The energy graphs from the myVaillant app showing our heat pump yesterday had COP of 4.0 for hot water.

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Rachael @techpoodle.bsky.social · 16/12/2023

So yesterday the average outside temperature here was 6C with a low of 2.6C and a high of 8.8C. Our ASHP used 14kWh of electricity @ 8p/kWh to deliver 68kWh of heat with a COP of 4.86 and a total cost of heating of £1.12. #RenewableEnergy

Shows a graph from the Ecowitt weather station app of the outside temperature here yesterday (15th Dec 2023). The high is 8.8C, the low is 2.6C, and the average for the day is 6C.

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Rachael @techpoodle.bsky.social · 02/12/2023

The average outside temp was -0.6C yesterday with a high of 1.8C and a low of -3.6C. Our Vaillant Arotherm+ ASHP delivered 105kWh of heat to the home and consumed 32kWh to do so for a daily COP of 3.3. #ClimateAction

Shows a graphs of the outside temperature measured by my Ecowitt weather station for 1st December 2023. The average temperature for the day is shown as -0.6C with a high of 1.8C and a low of -3.6C.

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