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Oh i like what i see today with battery at 98% charge. Almost 100% self sufficiency. I re wrote all the off peak grid ch...
07/04/2026

Oh i like what i see today with battery at 98% charge. Almost 100% self sufficiency.

I re wrote all the off peak grid charging schedules with additional and more granular conditions over easter, its begining to bear fruit

Removing some stress from life using home automation.Our dog is a diabetic, and we place a blood glucose sensor on him t...
09/09/2025

Removing some stress from life using home automation.

Our dog is a diabetic, and we place a blood glucose sensor on him to monitor his blood glucose levels. This reads from a sensor using a mobile phone using bluetooth, or NFC for a manual read. It has always been a bit stressful to leave him home for fear of his blood glucose level dropping to a dangerous low level and not being there to intervene.

Now however, as a result of stumbling upon a custom integration for LibreLink, which uses the Libreup application, i was able to monitor in almost realtime his levels through home automation. A couple of graphs to see the trend over 24 hours, 7 & 30 days, as well as seeing his phone status, battery level etc which is used for sensor monitoring.

Add to that a notification sent to both of us should his level drop below a low threshold, and we can now both monitor his current level both when away and at home, and be informed via push if away from home should his level drop below a threshold, which at this stage we have chosen to be 6 mmol/L

Weather forecasts are important for a dog walker.Will it rain, what times of the day will it be sunny, what are the harb...
07/04/2024

Weather forecasts are important for a dog walker.
Will it rain, what times of the day will it be sunny, what are the harbour water pollution levels and what are the tide times, and the AQI air quality index is currently?

all items important to a happy day out for the pooches.

Solution for my wifes dog walking business,

Summary email detailing todays forecasts from multiple sources

Tide status, Harbour pollution & Weather forecast tab.... So we know when is a good or a bad time for the pups to go fo...
02/10/2023

Tide status, Harbour pollution & Weather forecast tab....

So we know when is a good or a bad time for the pups to go for a swim in the harbour and or have some beach to run on

A 2 person Unit, 3kW pv invertor, 10kW battery....And lots of automation!Whilst we are still grid dependant, accomodatin...
02/10/2023

A 2 person Unit, 3kW pv invertor, 10kW battery....
And lots of automation!

Whilst we are still grid dependant, accomodating for those cloudy / winter days.
Using grid based battery charge schedules flexible enough to charge or not charge the battery during off peak tariff rates based on weather forecasts (accomodating for those pesky cloudy days), you can make your house minimally grid dependant with plenty of fine tuning of

1. Battery Grid Based Charge schedules

2. Appliance run schedules, automatically modulating energy draw, turning loads on and off depending on pv gen or battery availability

3. Minimising background load energy usage (for appliances that have high standby or background energy consumption)

4. Increase climate efficiency (keeping a room at desired temperature using an a/c consumes far less energy (400w) than trying to reduce or increase room temp by 2-3 deg (3-4kw). If away for an hour, it uses less energy to leave on ac and keep room temp stable) – "reducing human thermal frustration"

5. Load shed, when max load reached, shed usage of non essential appliances

6. Load shift, move load high points to different times

All fallen together at a good time, given the ever rising cost of grid purchasing of energy, and the falling rates of Grid feed in tariffs....

Our monthly bill for last month was aud$34 (including the fixed network charge), yet we consumed over 350kWh of energy

Additional fine tuning on battery grid charging during off peak periods based on weather forecasts.I stumbled upon an in...
28/04/2023

Additional fine tuning on battery grid charging during off peak periods based on weather forecasts.

I stumbled upon an integration using the https://forecast.solar/ site, where i have been able to generate estimates in kWh of expected output for the coming day from both my North & West facing solar panels.

As a result of having these estimates, My home automation server can be clever and make informed decisions to do with Grid supplied battery charging in the early mornings (whilst its dark and power can be purchased at off peak rates)

In the case of today's forecast overcast day, the estimate for today's solar output generation is only 1.9 kWh, where the expectation is that generated solar will not be sufficient to charge the batteries (which total 9.8kw), therefore the system has manually charged the batteries from the grid by purchasing power at .10c kWh off peak rate, for use during the day when the the shoulder charge of .17c kWh kicks in at 7am.

The battery charge value at 3am is only approx 30%. inject grid supplied charge to bring it up to 90%, so approximately 6kwh of charge in this case.

Summary - Purchase 60c worth of power during off peak rate, to use during shoulder rate period, which would have cost $1.02 during todays overcast forcast day during this shoulder period. So in todays case, we stand to have saved .42c worth of power for our expected usage throughout the day and evening

Address

Thames Street
Balmain, NSW
2041

Telephone

+61419220916

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