The Powerwall is a home battery developed by Tesla. The price of a Powerwall can vary depending on several factors, such as the country you are located in, any applicable subsidies or tax benefits, installation costs, and the selected configuration. It's important to note that prices can change over time, so it's best to check the most recent information directly from Tesla or authorized dealers.

For reference, as of September 2021, the Powerwall had a price of approximately €9,600 in the Netherlands, excluding VAT and installation costs. However, keep in mind that this is just an indicative price and the final price may vary based on various factors.

To get accurate and up-to-date information about the price of a Powerwall in your specific situation, I recommend contacting Tesla or an authorized dealer in your area. They can provide you with the most recent pricing information and help you determine the total costs of the Powerwall installation.