pv_forecast is not aligning with JSON input for naive-mpc-optim command

[Deztak]

EMHASS is returning a pv_forecast that doesn't align with the input data. Currently it's outputting 2,270.57 W and I can't see any reason why it's not outputting 839W ... all other output time intervals are aligned with the input

Also note that it seems to be jumping around at random over time and I can't reverse engineer what it's doing. But it does seem that the EMHASS optimisation is using this pv_forecast value and anticipating more charge than what my pv can deliver

I am using the Hybrid Inverter option but have no PV curtailment

Input for the naive-mpc-optim command { "pv_power_forecast":[839, 1115, 1576, 1892, 1981, 2149, 2366, 2524, 2566, 2481, 2310, 2118, 1910, 1636, 1316, 971, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],"load_cost_forecast":[0.13, 0.13, 0.16, 0.16, 0.15, 0.1, 0.1, 0.12, 0.12, 0.15, 0.14, 0.41, 0.42, 0.41, 0.42, 0.49, 0.52, 0.69, 0.69, 0.72, 0.81, 0.69, 0.69, 0.43, 0.4, 0.33, 0.24, 0.33, 0.24, 0.37, 0.34, 0.34, 0.28, 0.22, 0.21, 0.19],"prod_price_forecast":[0.03, 0.04, 0.06, 0.04, 0.03, -0.01, -0.01, 0.01, 0.01, 0.03, 0.02, 0.32, 0.33, 0.32, 0.33, 0.39, 0.42, 0.58, 0.58, 0.61, 0.68, 0.58, 0.58, 0.31, 0.28, 0.22, 0.13, 0.22, 0.14, 0.25, 0.23, 0.22, 0.17, 0.11, 0.11, 0.09],"prediction_horizon":36,"soc_init":0.53,"soc_final":0.15 }

[Deztak]

I just changed my pv_forecast input algorithm to make the first value 0 and it's still giving back 2022.72 W

[Deztak]

Now it's giving a massive error but the second it ticked over 1131, the error reduced to less than 100 and has now increased over the time period. Also note that I turned off the hybrid inverter feature.

Data Input { "pv_power_forecast":[2418, 2456, 2371, 2290, 2214, 2030, 1752, 1441, 1135, 895, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],"load_cost_forecast":[0.04, 0.04, 0.1, 0.1, 0.1, 0.39, 0.4, 0.41, 0.42, 0.48, 0.47, 0.52, 0.69, 0.58, 0.54, 0.53, 0.58, 0.31, 0.23, 0.26, 0.23, 0.37, 0.21, 0.37, 0.27, 0.24, 0.21, 0.21, 0.19, 0.18, 0.18, 0.18, 0.18],"prod_price_forecast":[-0.07, -0.07, -0.01, -0.01, -0.01, 0.31, 0.32, 0.32, 0.33, 0.38, 0.38, 0.42, 0.58, 0.48, 0.44, 0.43, 0.48, 0.2, 0.13, 0.15, 0.13, 0.25, 0.11, 0.26, 0.16, 0.14, 0.11, 0.11, 0.09, 0.08, 0.08, 0.08, 0.08],"prediction_horizon":33,"soc_init":0.64,"soc_final":0.15 }

[purcell-lab]

Please check your alpha and beta values as well as the method_ts_round: https://emhass.readthedocs.io/en/latest/forecasts.html#now-current-values-in-forecasts https://emhass.readthedocs.io/en/latest/config.html#retrieve-hass-data-configuration

I have:

method_ts_round set to first. "alpha": 1, "beta": 0,

[Deztak]

Please check your alpha and beta values as well as the _method_tsround: https://emhass.readthedocs.io/en/latest/forecasts.html#now-current-values-in-forecasts https://emhass.readthedocs.io/en/latest/config.html#retrieve-hass-data-configuration

I have:

_method_tsround set to first. "alpha": 1, "beta": 0,

Thankyou ... I don't know where this thread can be moved to to help others ... but, if anyone else has this issue here is my rest command change that solved it:

post_mpc_optim_solcast: url: http://homeassistant.local:5000/action/naive-mpc-optim method: POST content_type: 'application/json' payload: >- { "pv_power_forecast":{{states('sensor.solcast_24hrs_forecast')}},"load_cost_forecast":{{states('sensor.amber_gen_price_forecast')}},"prod_price_forecast":{{states('sensor.amber_prod_price_forecast')}},"prediction_horizon":{{states('sensor.solcast_24hrs_forecast')|from_json|count}},"soc_init":{{(states('sensor.med_battery_charge')|float(0)/100)|round(2)}},"soc_final":{{float(0.15)|round(2)}},"alpha":{{float(1)}},"beta":{{float(0)}} }

With this rest command, I'm now getting:

if alpha = 0 and beta = 1 then this is then I got the below output for this input: note I'm not 100% sure where PV(k-1) is coming from but, this is irrelevant as now EMHASS is ignoring it