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Tesla Powerwall Home Battery: Hype or Solution?

For those of you who have a vested interest in going completely off-grid, you were possibly holding out for the latest and greatest that Tesla has been promising. If you listen to Elon Musk he will tell you that the new Powerwall system is the solution to end all non-renewable energy sources for the entire world.

Is that something really attainable? Will we as humans ever see this in our lifetime?

To be honest, it is a very attainable possibility, but big strides need to be made in renewable energy storage. This is a big focus for many energy and technology companies, but the world might not be ready to go off grid tomorrow. We can’t say that it won’t happen in our lifetime, in fact we hope it does, but is Tesla the one making it happen?

As a turn-key solar installation company, several people are choosing to go solar because of the savings. While Sun Solar offers battery back-up systems, they tend to drive up the costs for those going solar. So, many customers tend to stay tied to the grid. In fact, many people that decide to purchase a battery back-up system still remain tied to the grid.

The Tesla Powerwall it is actually a pretty impressive battery system that has been lacking from the solar storage market. Telsa themselves realized the need for a better home battery product as its predecessors having been lacking in affordable price-points, reliability, aesthetics, quality, efficiency, better integration, reliable life expectancy and scalability to meet individual needs.

Those are certainly some big shoes to fill, but the Powerwall claims to have it all. While Tesla is making some big predictions for their new battery system only time will tell just how impactful it will be for the average residential solar owner.

The Tesla Powerwall has two different models and price points for their rechargeable lithium-ion battery. The 10 kilowatt hour (kWh) capacity will retail for $3,500.00 and the 7 kWh system will come in slightly lower at $3,000.00. Looking at price, one might be a little blown away by how affordable they are. What you won’t see until you read the fine print is that the price does not cover the cost of the compatible inverter that will be required to make it work or the professional installation to have it installed. Both of these factors could increase the cost another $4,000 to $6,000 to an existing or new installation.

The good news for those that have already gone solar and are looking to make this an addition, is that the Powerwall will function with most inverter models that are included as part of your system. The other good news is both Powerwall models are generally enough to power most homes. But, in the event that it’s not, you can have multiple Powerwall batteries connected to each other to expand your usage capabilities.

One area that Tesla has always done well is the aesthetics. It weights around 220 lbs. and is meant to be mounted to an outer or inner wall of the home. It is very sleek and even comes in a variety of colors to make it a conversation starter. The voltage for both systems will range from 350 to 450 volts of DC electricity and have 5 kilowatts of continuous power and peak power of 7 kilowatts.

In addition to the Powerwall, Tesla will also offer what they call the Powerpack.  This is their solution for larger businesses and solar farms to house solar energy. While you might imagine isn’t as sleek as the Powerwall due to the sheer capacity and storage it will hold, is also impressive.  During the launch party, Elon Musk stated that the “Powerpack is an infinitely scalable system.” The Powerpack has 100kWh of storage and will start with a price point of $25,000.

Tesla has even gone so far as to let us know that it would only take two billion Powerpack systems to replace all transport, heating and electricity in the entire world. That may seem impossible, but they remind us that that is roughly how many vehicles are on the roads worldwide.

At the very least, the Powerwall and Powerpack are a huge improvement on existing technology and something definitely worth considering for new and existing solar users.