@pimentoad look at strptime - I’m using it to assemble some sensors reporting in datetime format here, for example https://github.com/garethmarlow/Home-AssistantConfig/blob/main/packages/energy_management/co2_battery_management.yaml

Fantastic cost savings from solar+battery, one year after installation.

https://youtu.be/ThjeN4B5IDY

#solar #battery #OctopusEnergy

@emma "gmem" expands to "gareth@marlow.org.uk" and "gmeq" expands to "gareth@eqsystems.io" which gives me, conservatively, four hours per day back.

@andrewhinton @aaronesilvers @steveportigal I mean the *youngest* gen-xer is 43. 50+? WTF. GenX needs to be renamed "the forgotten generation". Not that I'm bitter.

@bazcurtis @ChrisWarwick @pugmiester

those time picker cards are nice, hadn't seen them before.

@bazcurtis @ChrisWarwick @pugmiester

the DFS has been about as £££ worthwhile as the power-ups, even though there have been way fewer events. The power-ups generally mean I load-shift from the IO off-peak at 7p/kWh to the power-up at 0p/kWh. In Feb we got free power worth £19 through power-ups and earned £19 from DFS. Total cost for the month including standing charge was £30.

Total electricity consumed so far in December: 618kWh (house and car)

Total cost of electricity consumed so far December including standing charge: minus £7.68

Crazy.

@ifr that was ace.

Saving even more money with solar + home batteries.

I revisit my earlier cost analysis now that winter has arrived, and show how the National Grid Demand Flexibility Service, and the Octopus Power-up scheme have had a significant impact on our costs.

#greenenergy #solar #octopus #homeassistant

https://www.youtube.com/watch?v=Z2e4ubFUcOQ

Saving money and carbon footprint through careful home battery management - latest video on using #HomeAssistant to help the household to make good decisions to manage battery capacity.

https://www.youtube.com/watch?v=sflRtabO9us

@FionnulaMac thank you! Yes, the smart meters just feels like a massive missed opportunity to me.

Charging our home battery at the lowest carbon-intensity grid periods.

https://www.youtube.com/watch?v=dBcuStL4WrI

#homeassistant #climatecrisis

@james it’s just hand-crafted yaml then uses one of the iOS themes. Nothing very sophisticated - cards placed using layout-grid - but we have a 10” kindle in the kitchen and I wanted non-scrolling panel views that didn’t look dreadful for things that the family will use.

@james - dashboard changes inspired by your blog post at the weekend - I'm using net load (house load - solar generated) to get around the problems you encountered.

Work in progress from the weekend.

The graph shows the carbon forecast being used to charge the house battery in the lowest carbon periods overnight. Dark grey off-peak; light grey is when the battery was commanded to charge. CO2 savings are around 90% compared to the forecast peak at 17:00.

The dashboard is intended to quickly signal whether the battery will last until off-peak, and the effect of running various kitchen appliances.

#homeassistant

@james ah, is this because your battery load sensor goes negative when the battery is charging from solar? I use my house load sensor here to avoid that problem.

@pugmiester @james exactly! I’m trying to reduce it to a traffic light indicator - red is “battery will be/is flat so only use appliances if there’s no choice”, yellow is “battery may not last to next off-peak so take care” and green is “no worries”… I’ll only surface specific info about appliances if overall status is “yellow”.

I’m also using this blueprint https://github.com/leofabri/hassio_appliance-status-monitor/blob/main/appliance-status-monitor.yaml

@m0vfc place your bets, folks

@m0vfc I'll be watching my automations nervously tonight - first time I've encountered a summer time change since I've had the battery...

@james thanks for this write-up, it's very helpful - good to have examples of using the statistics function in particular.

I'm trying to do something similar at the moment, also forecasting how many more loads the tumble dryer/washing machine/dishwasher can take before the battery runs flat. We've been away for the weekend so battery is full and nothing's been used today, but here's the dashboard