Energy calculation and data saving

[Domoticatorino]

Dear all,
I manage some energy counters (energy produced by photovoltaic, energy sold to the network) and in the meanwhile I calculate the self-consumption energy. Daily and total. Here below is shown the script I did and I would like to ask you if there's a best way to improve it.

The system works fine but I would like to know if there's a better way to manage this process.

1. Scheduled script to read the value of energy instrument at the beginning of the day (energy counter of instrument cannot be reset). Hence I find this method to obtain daily data.

Code:

-- script run every day at 0:0 am.
-- script to get value from instrument of photovoltaic energy and energy sold.

evenduta = grp.getvalue('3/4/16') -- read from the instrument value of energy sold

grp.write('32/1/10', evenduta) -- write to morning_energy_sold which has address 32/1/10

-- evenduta_mattino = grp.getvalue('32/1/10')

ftv = grp.getvalue('3/4/28') -- read from the instrument value of energy produced by photovoltaic
grp.write('32/1/11', ftv) -- write to morning_energy_photovoltaic which has address 32/1/11

2. Scheduled script to calculate energy product by photovoltaic and self-consumption energy.

Code:

-- script runs every day, every hour at 59 minutes
-- script to calculate the daily energy product by photovoltaic and self-consumption energy. The last script of the day will give the result of the day.

ftv = grp.getvalue('3/4/28') -- energy read by instrument of photovoltaic.
ftv_mattino = grp.getvalue('32/1/11') -- photovoltaic energy read by morning script.

evenduta = grp.getvalue('3/4/16') -- energy read by instrument of energy sold.
evenduta_mattino = grp.getvalue('32/1/10') -- energy-sold read by morning script.

delta_ftv = ftv - ftv_mattino -- difference to calculate daily photovoltaic energy.
delta_evenduta = evenduta - evenduta_mattino -- difference to calculate daily energy sold.

grp.write('32/1/12', delta_ftv)
grp.write('32/1/13', delta_evenduta)

energia_autoconsumata = delta_ftv - delta_evenduta -- difference to calculate self-consumption energy

grp.write('32/1/15', energia_autoconsumata) -- daily value of self-consumption energy

autoconsumo_perc = (energia_autoconsumata / delta_ftv) * 100 -- % value of daily self-consumption energy

grp.write('32/1/14', autoconsumo_perc)

3. Scheduled script to calculate the total self-consumption energy.

Code:

-- script runs all days, at 11 pm at 59 minutes.
-- script to calculate total self-consumption energy.

daily = grp.getvalue('32/1/15') -- read daily self-consumption energy

os.sleep(2)

total = storage.get('autoconsumo_totale') -- get from system self-consumption energy

os.sleep(2)

total = daily + total -- add to total the daily value

os.sleep(2)

grp.write('32/1/16', total) -- write to "Total self-consumption energy" address

storage.set('autoconsumo_totale', total) -- save on system new "Total self-consumption energy"

Thanks.

BR