search

gf78 / solar-system-dynamic-limit-management-opendtu-shelly-pro

Dynamic limit management for OpenDTU with Shelly Gen2 Pro device (EM3 Pro, 1PM Pro, 2PM Pro)
Apache License 2.0
15 stars 0 forks source link

Running also on Shelly PLUS 1PM ? #2

Open kinichahau2023 opened 1 year ago

kinichahau2023 commented 1 year ago

What is the reason that the Script is only for PRO-shellies? I can not find a reasons why it should not work with Shelly PLUS 1 PM. That would be great!

gf78 commented 1 year ago

in principle it runs on plus 1pm, but there are two issues with this device:

a) missing current direction. it is not possible to distinguish between consumption and feed.

b) non EM devices are about 6% inaccurate on measurements

kinichahau2023 @.***> schrieb am Mo., 25. Sep. 2023, 21:51:

What is the reason that the Script is only for PRO-shellies? I can not find a reasons why it should not work with Shelly PLUS 1 PM. That would be great!

— Reply to this email directly, view it on GitHub https://github.com/gf78/solar-system-dynamic-limit-management-opendtu-shelly-pro/issues/2, or unsubscribe https://github.com/notifications/unsubscribe-auth/ALVBB3WG5WUEDRXZJEZXZBLX4HODDANCNFSM6AAAAAA5GTO4H4 . You are receiving this because you are subscribed to this thread.Message ID: <gf78/solar-system-dynamic-limit-management-opendtu-shelly-pro/issues/2@ github.com>

kinichahau2023 commented 1 year ago

The inaccuracy is unfortunately true (I have around -6% (less measured with PLUS 1 PM) in bigger values and more than -15% measured values with smaller values between 1W to 60-80W), but with an individual (average) "correction-factor" in the script this inaccuracy could be possibly eliminated to (more or less) acceptable results. The discussion about the "missing correction factor" inside the latest firmware 1.0.3 for PLUS 1 PM as it was obviously existing in previous 1 PM (without PLUS) is already long lasting. It would be a big step forward if ALLTERCO might bring this feature back to life to stop all these discussions and frustrated user.... Also the acceptance of this unit could be increased with the actual increasing PV-market. Maybe one day some firmware update will bring this feature back...

greymda commented 7 months ago

so better to get the more expensive Pro option? although I do have place only for Shelly PLUS 1PM to be honest :(