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The Tesla solar roof is a wonderful innovative technology that will revolutionize the solar industry especially as more companies start to produce their own solar roofs. Tesla launched their solar roof with combined Powerwall battery system this week and everyone got very excited. But how excited should we be in Jamaica?

Here at Solar Buzz we get a lot of calls regarding new technology and the solar roof has been on people’s minds for 7 months since the initial announcement. My response to prospective solar clients would be to not get too excited about owning a solar roof in Jamaica anytime soon, for a few reasons:

  • Not available outside USA initially: If you go to the Tesla Solar Roof page there is a calculator. It will predict the cost of the roof but this calculator only works for US addresses. As with the Tesla Powerwall battery system, which launched over 2 years ago, demand will be high and availability will be limited to the USA until all the kinks are worked out. I have yet to come across a Tesla Powerwall battery system in Jamaica so I would not look for a solar roof in Jamaica for a while.
  • New technology is expensive: The solar roof is very new therefore the price is going to be very high. On the Tesla calculator I typed in a Florida address and put the house size at 2,000sf, the costing is below:

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A 2,000sf roof would cost J$10,500,000 before shipping and is estimated to offset 70% of your electricity bill. Florida has a solar tax credit but Jamaica has much higher energy costs so let’s say these even out for simplicity. A rough payback of this roof in Jamaica would be about 20yrs which puts us back to the early days of solar when regular panels were expensive at US$2/watt compared to US$0.50/watt now. Solar did not sell in those early days because the payback was too long. Actually solar is very cheap now and the solar market still struggles in Jamaica! This is mostly due to the lack of and a tedious financing process in Jamaica but that’s a whole different thesis.

  • The Tesla calculator assumes the home would only need one Powerwall battery bank which produces 14kWh. For a home with a family of four, the solar system would mostly likely need at least two Powerwall battery banks to achieve 100% offset, so add another US$7,000 to the cost.

This assessment is not to discourage anyone towards the solar roof as eventually all roofs will be made of solar tiles. However until that time conventional solar systems are at their most inexpensive levels of all time. A homeowner could buy a new roof and install a traditional solar system to offset 100% of electricity costs and payback for both in half the time of a Tesla solar roof right now. Eventually this will change but at this moment in time do not bank on a solar roof being available in Jamaica or feasible for many years to come. The time you spend waiting  on the Tesla solar roof in Jamaica you could have bought a traditional solar system, a new roof and paid off both through your energy savings.

Solar Buzz Jamaica CEO-Jason Robinson

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