A: Octopus Outgoing offers people with Solar and batteries the option to sell back there stored Solar Pv generation between the hours of 4pm to 7pm. Between 4pm and 7pm every half-hour the price changes, You can set the lux to only discharge back to the grid should the pay back price exceed your stated sell back price.
Example: you request that the Lux can only discharge back to the grid should the payback price exceed 15p, The Lux algorithm will then select any of the highest paid half-hourly periods that exceed your 15p set price and discharge back to the grid.
You always have full access to the pricing structure, and you can charge your payback price at any time.