Can you do clean energy cheaper than Big Power?

Alinta currently charges Sydney households around $1 per day in fixed charges, 53 cents per kilowatt-hour for peak period usage, 16 cents for off-peak and a bit under 23 cents for the shoulder period. Based on my hourly usage profile this would cost around $2,421 per annum. But if we then boost up the charges per kilowatt-hour by 35 per cent then it will cost $3,141 per annum.Now let’s zoom forward to 2035 when Loy Yang Power Station closes, but assume power prices have remained constant rather than going up. According to the CSIRO a 10 kilowatt solar system will set you back about $7,800. Meanwhile a 15 kilowatt-hour battery, according to the US National Renewable Energy Laboratory will be substantially cheaper than it is today, and cost you about $8,600. If you financed that system out of your home loan offset at 5 per cent interest and tried to pay it back within 10 years it…

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