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False Hero: Elon Musk and his Lies Concerning the Powerwall

Updated on July 8, 2015
Elon Musk
Elon Musk

The Promise of the Powerwall

On April 30 of 2015, Elon Musk, the owner of Tesla, became my hero. It was on this day that he unveiled the Powerwall, a sleek battery that stores solar energy. This battery was said to be only $3,500 and Musk promised that this single battery would power an entire home and eradicate power bills. The Powerwall seemed revolutionary for renewable energy. Nonetheless, good things can never be true.


Lie 1: The Actual Cost of Obtaining a Powerwall

In the announcement of the Powerwall, Elon Musk proudly proclaimed that the Powerwall would be $3,500. Unbeknownst to the audience, Musk intentionally hid a variety of underlying fees. Firstly, the Powerwall needs an inverter to function. The inverter comes at an extra cost of about $3,000. Secondly, the installation price is around $3,000, which is absolutely insane for the simple mounting of the battery on the wall. So, when it comes down to it, the actual price to acquire a functioning Powerwall is about $10,000; quite a large margin of error on Musk's part.

Lie 2: The insufficiency of the Powerwall

In 2013, the average energy spent daily per home was 30 kWh. However, the Powerwall only can store up to 10 kWh, and it only stores energy once a week. Instead of providing energy for the home, the Powerwall is pretty much an emergency energy system used at night or during blackouts. There is an alternative though. Another Powerwall is sold at $3,000 for a daily level of 7kWh. Additionally, the average solar panel that comes with the Powerwall, for a daily fee, can generate around 20 kWh per day. As a result, less than 2/3 of the energy that powers an average home is supplied by the Powerwall package.

If an average person wanted to supply his or her whole home with solar energy day and night, then it would be necessary to buy 2 Powerwalls, 2 inverters, and an extra solar panel that can generate about 10 kWh. An extra Powerwall is needed because energy usage varies widely depending on the time of year. If you do the math, then you realize that it is around $21,000 just to have the whole system. This is outrageous compared to the previously quoted $3,500 to power the home.

Lie 3: No More Power Bills

Tesla's Powerwall comes with one extra sneaky fee: a power bill. This power bill is $0.15 per kWh, which generally means $4.5 a day to pay 2/3rd of your power. With the daily fee of $4.5 and the extreme costs to install a functioning battery, this Powerwall has serious problems. Despite the steep pricing, you have to pay an extra 2.90% per year for the costs. Overall, the Powerwall is not worth it.

Even though the Powerwall is a hoax, it was rapidly sold out and the production for the products ordered will likely take until mid 2016. Elon Musk promised to these people a simple $3,500 rate for complete power for their homes forever. But, just the cost of providing complete energy for an average home using the Powerwall for ten years would be about $40,000. I'm sure glad I didn't buy a Powerwall.

Would you still consider buying a Powerwall in the future?

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    • choneycutt profile image

      Henry Wordsworth 2 years ago from United States

      Skear, I'm sorry. I meant that the inverter is included for about $3,000 in the article. I did the necessary editing. And, it is not a requirement to have solar panels for the Powerwall; however, in the announcement video, Musk promised that the Powerwall would provide more than enough energy for the average home on its own. Since one cannot power the home much at all without a solar panel, I calculated how much a solar panel system would cost in order to get off the grid as Musk promised.

      In Lie 2 I already clarify that the Powerwall does not generate electricity and I point out that you cannot get off the grid without buying your own solar panel, while also using the solar system that you can get with the Powerwall for a fee per kWh.

      I hope I answered your questions and I want to thank you for helping me fix some minor issues in the article.

    • skear profile image

      Sam Kear 2 years ago from Kansas City

      When did Musk say that the Powerwall included any solar panels for $3,500? It's not a requirement to have any solar panels to use the Powerwall.

      I also don't understand what you're talking about in "Lie #3". The Powerwall doesn't generate electricity so unless your house has enough solar panels to be completely off grid you're still going to have to buy some power from the utility company, in Kansas City that amounts to about $.12 per kWh.

    • Dressage Husband profile image

      Stephen J Parkin 2 years ago from Pine Grove, Nova Scotia, Canada

      The facts here are interesting if true. I would consider one only if the price advantage ever comes about.