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☀⚡🧠Smart(er) Home Battery Charging #102

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8 of 9 tasks
dannytsang opened this issue Mar 19, 2024 · 3 comments
Open
8 of 9 tasks

☀⚡🧠Smart(er) Home Battery Charging #102

dannytsang opened this issue Mar 19, 2024 · 3 comments
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@dannytsang
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integration: octopus energy integration: solar assistant integration: solcast

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@dannytsang
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dannytsang commented Mar 19, 2024 •
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Better manage the overnight charging along with Octopus tariff. In my case, Octopus Agile.

In the winter, it was 99% fully charged overnight so very little logic is required to managed the grid charging. As Spring starts, the reliance on the grid charging can be reduced as more solar generation is present.

This enhancement is to better manage the grid charging using cheaper electricity whilst leaving capacity during the day for solar storage.

A few factors it should consider:

  • Solar forecast - make sure it does not over charge the battery and allow the ☀sun do it's work.
  • Weather forecast - offset/adjust the in tandem with the solar forecast. ⛅
  • Temperature forecast - The temperature can also affect the efficiency of the panels. 🌡️
  • Electricity provider rates - Octopus Agile has different rates every 30 minutes so it should target the cheaper slots. 🐙
  • Household load - the amount of electricity consumed varies and affects how much is required. 🏡
  • Take into account current charge / target SOC for time of day 🔋
  • Current battery state of charge 🔋
  • Take into account holiday mode ✈️
  • No self sustaining 1+ hour period in a day 🏂
@dannytsang dannytsang self-assigned this Mar 19, 2024
dannytsang added a commit that referenced this issue Mar 19, 2024
@dannytsang
Added half hourly slots to overnight charging script.
ffac183 
Added half hourly forecast to forecast notification.

Update #102
dannytsang added a commit that referenced this issue Mar 21, 2024
@dannytsang
Changed notifications to use average over 1 month for sustainable usage.
e956180 
Average currently seems high at 0.99kWh. I suspect this would differ if the average was broken down to per day of the week average but this does not seem to be possible right now.

Update #102
dannytsang added a commit that referenced this issue Apr 11, 2024
@dannytsang
Limit charge to predicted required amount.
5c468bf 
Update #102
@dannytsang
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dannytsang commented Apr 25, 2024 •
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Total Capacity: 13kwh
Charge at 3kWh = 33.30% per hour (when below 90%).

Target charge: 45% (5.85kwh).

21:00 - Forecast and reporting time.
70% of 13kWh = 9.1kWh
60% of 13kWh = 7.8kWh (usable capacity)

2:30 - First cheapest rate to charge.
33% of 13kWh = 4.29kwh
23% of 13kWh = 2.99kWh (usable capacity)

5.5h difference between 21:00 & 2:30

@dannytsang
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Target charge: 45% (5.85kwh).

21:00 - Forecast and reporting time.
64% of 13kWh = 8.32kWh
54% of 13kWh = 7.02kWh (usable capacity)

3:30 - First cheapest rate to charge.
28% of 13kWh = 3.64kwh
18% of 13kWh = 2.34kWh (usable capacity)

6.5h difference between 21:00 & 3:30

dannytsang added a commit that referenced this issue Apr 28, 2024
@dannytsang
Added current state of charge to solar forecast.
2619795 
Added emoji support for weather again.

Update #102
dannytsang added a commit that referenced this issue Apr 28, 2024
@dannytsang
Adjusted charge amount calculation.
b2e2489 
Update #102.
dannytsang added a commit that referenced this issue Apr 30, 2024
@dannytsang
Created a runtime using duration device class.
b464990 
This will provide the amount of energy left in the battery in seconds.

Update #102
dannytsang added a commit that referenced this issue Apr 30, 2024
@dannytsang
Fix 1 hour charge time check not using rounded hours.
a308b7c 
Update #102
dannytsang added a commit that referenced this issue May 1, 2024
@dannytsang
Debugging messages to see estimate runtime at the point of charging.
0cd6ec6 
Update #102
dannytsang added a commit that referenced this issue May 11, 2024
@dannytsang
Added self sustaining period to charging message.
2eeea83 
Update #102.
dannytsang added a commit that referenced this issue May 13, 2024
@dannytsang
Do not notify of excess solar when inverter is in Battery first mode.
e7b3671 
This is a force charge of the battery and does not notification.

Update #102
dannytsang added a commit that referenced this issue May 16, 2024
@dannytsang
Fix incorrect entity used for solar generation.
fef120f 
Update #102
dannytsang added a commit that referenced this issue May 29, 2024
@dannytsang
Added weather forecast to charging schedule messaging.
79c8cab 
Update #102
dannytsang added a commit that referenced this issue May 29, 2024
@dannytsang
Change forecast based on home mode.
1aa273f 
Update #102
dannytsang added a commit that referenced this issue Jun 10, 2024
@dannytsang
Added target rate.
3f85874 
A target rate can be manually adjusted and I see this as being changed more frequently compared to below export rate.

This will allow periods where it's below export rate but only charge when it is significantly less or delay charging to a more favourable period semi automatically.

For example:
1. 14:00-15:00: 14p/kWh
2. 15:00-15:30: 9p/kWh
3. 15:30-16:00: 13p/kWh

You can use it to target the 9p/kWh or include 13p but not 14p without having to constantly adjust schedules. I can see these would differ in frequency of usage between summer and winter. i.e Winter will be charging as much from the grid due to lack of sun.

Update #102
dannytsang added a commit that referenced this issue Jun 15, 2024
@dannytsang
Use Solcast forecast and fallback to Forecast.io.
9b0f904 
Update #102
dannytsang added a commit that referenced this issue Jun 15, 2024
@dannytsang
Moved variables from pre-script sequence to within script sequence.
2d6c957 
Added weather to solar forecast data. This will be used in the future for weather compensation solar charging.

Removed weather forecast from nightly solar forecast report because it is now retuned in solar forecast data.

Update #102
dannytsang added a commit that referenced this issue Jun 15, 2024
@dannytsang
Created macro template for weather compensation ratio.
646af8b 
This will be used to modify the solar forecast depending on the weather condition.

Update #102
dannytsang added a commit that referenced this issue Jun 16, 2024
@dannytsang
Moved Solcast specific automations and scripts to it's own package.
357483b 
Update #102
dannytsang added a commit that referenced this issue Jun 17, 2024
@dannytsang
Added weather data to allow future forecast adjustments.
95e8a51 
Added minimum solar for first and last generation. This will fix issue where it was less than 0.01 being rounded to 0kWh in the notification.

Update #102
dannytsang added a commit that referenced this issue Jun 17, 2024
@dannytsang
Change check charging mode script to use weather data in solar foreca…
c3e8028 
…st script.

Added debugging messages on weather data to notification.

Update #102
dannytsang added a commit that referenced this issue Jun 19, 2024
@dannytsang
Fix today's solar forecast referencing variable that does not exist.
25bf1ad 
Update #102
dannytsang added a commit that referenced this issue Jun 22, 2024
@dannytsang
Removed rates criteria when charging on octopus schedule.
5974f32 
Moved octopus charging schedule priority to below target export rate.

Update #102
dannytsang added a commit that referenced this issue Jul 4, 2024
@dannytsang
Replaced next day forecast with forecast data.
88ecd8b 
Added solar forecast source to forecast data response.

Update #102
dannytsang added a commit that referenced this issue Jul 11, 2024
@dannytsang
Handle nulls in a dictionary.
7d1ccc1 
This can happen when it cannot find a forecast matching the criteria.

Update #102
dannytsang added a commit that referenced this issue Jul 17, 2024
@dannytsang
Fix nulls/Nones. Moved setting inverter to parallel so that if the sc…
ca80148 
…ript errors setting the variables it will still work.

A temporary workaround until the variables are more stable.

Update #102
dannytsang added a commit that referenced this issue Jul 24, 2024
@dannytsang
Fix notification labels for weather.
f41aa15 
Update #102
dannytsang added a commit that referenced this issue Jul 27, 2024
@dannytsang
Updated variable namings to match existing syntax.
cc1b0db 
Update #102
dannytsang added a commit that referenced this issue Jul 27, 2024
@dannytsang
Moved excess solar notification to energy package.
472d9e6 
Added remaining solar using Solcast.

Update #102
dannytsang added a commit that referenced this issue Jul 27, 2024
@dannytsang
Fix missing convertion to timestamp when calculating runtime to solar…
dfa469b 
… generation.

Update #102
dannytsang added a commit that referenced this issue Aug 16, 2024
@dannytsang
Fix incorrect logic when checking battery charge is greater than target.
5e1eba0 
Added battery charge level to notification.

Update #102
dannytsang added a commit that referenced this issue Oct 12, 2024
@dannytsang
Added defence coding to getting weather data.
c56dd5e 
Try to prevent it from stopping the check solar script from failing.

Update #102
dannytsang added a commit that referenced this issue Oct 12, 2024
@dannytsang
Replace custom template with script for weather compensation.
5c6b508 
Update #102
dannytsang added a commit that referenced this issue Oct 12, 2024
@dannytsang
Replaced charge amount customer template with script.
e468144 
Update #102
dannytsang added a commit that referenced this issue Nov 1, 2024
@dannytsang
Added check for current tariff in consider charging notification.
be1b072 
Only applies to Agile tariff if the battery runtime won't make it past peak electricity period.

Update #102
@dannytsang
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Compensation is in place and require fine tuning before implementing.

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