get_power()
Calculate battery power
optimise_arbitrage()
Optimise income from arbitrage
spot_price_2016
Electricity Market Spot Prices for April 2016 - April 2017
spot_price_au_2017
Australian Electricity Market Spot Prices for July 2017 - June 2018
spot_price_uk_2018
UK Electricity Market Spot Prices for October 2018 - September 2019