Tesla believes the Powerwall will allow for energy cost savings in the home by allowing several hours of energy off the grid when electricity costs are at peak every day. It also allows solar energy to be easily stored beyond your current system’s capacity, and can act as a vital backup power solution in case of an outage.
Powerwall boasts an efficiency rating of 92%, allows continuous power of 2kW or peak power of 3kW, and will be available in both 7kWh and 10kWh units. Tesla recommends the 7kWh unit for daily use situations, or the 10kWh unit where a backup power option is the greater concern. As for costs, Tesla will be offering the 7kWh and 10kWh units to installers for $3,000 and $3,500 respectively complete with a 10-year guarantee.
Consumers won’t be purchasing the Powerwall at those prices. They are just for the unit and don’t include an inverter or cover installation (by a trained electrician). What’s more likely (and practical) is that Powerwall will be leased for a monthly fee, that way the initial cost of using one is lower and faults or battery replacements are handled by the company you lease from.
Tesla is offering business and utilities versions of the Powerwall, which are on a much larger scale. A number of companies, including Amazon and Target, are listed as customers already, with blocks of Tesla batteries available to scale from 100kWh right up to 10MWh+. Tesla states that it can produce a solution capable of keeping a utility on the grid for up to 4 hours continuously.
Tesla is not doing this alone, and realizes it needs partners to succeed and allow consumers and businesses to make the most of the tech. It needs companies willing to sell and install the Powerwall as well as solar companies to help push that aspect of the equation.
Expect a lot of Tesla Energy advertising in the coming months, as well as a growing number of support companies offering you a Powerwall for the home. The first Powerwall deliveries are expected to happen this summer, and you can reserve one right now if you’re already convinced this is the future of home energy.