TESLA’s Powerwall 2 was released in 2017 and was set to revolutionize Li-Ion battery pricing. With twice the capacity of its predecessor, and at a cost of approx. A$8,000 in 2017, it briefly dropped the price to under $600 per kWh! The cost included all electronics, such as inverters and monitoring software.
Since then, the AU dollar has lost value and demand for batteries is outstripping demand – the price for a Powerwall 2 is now approx. $13,000. Other suppliers have followed suit. Expect to pay a minimum of $650 per kWh useable today in December 2019. However, the costs for large scale batteries are coming down, driven by demand response installations currently being built or in the planning stages. It is expected to filter through to smaller users as production and competition increases.
Expert such as Finn Peacock form ‘Solarquotes’ recommend NOT installing batteries right now UNLESS you have a good reason to do so: frequent blackouts, medicinal reasons etc.
We cannot agree more. It is just a matter of time until prices for domestic batteries will drop.
For business, peak-demand management with solar power and highly efficient batteries is already cost effective. With electricity pricing already going up and foretasted to go significantly higher, battery storage looks increasingly interesting.