TMC is an independent, primarily volunteer organization that relies on ad revenue to cover its operating costs. Please consider whitelisting TMC on your ad blocker and becoming a Supporting Member. For more info: Support TMC

Tesla Solar Roof: Money Calc

Discussion in 'Tesla Energy' started by SageBrush, May 26, 2018.

  1. SageBrush

    SageBrush 2018: Drain the Sewer

    Joined:
    May 7, 2015
    Messages:
    6,355
    Location:
    Colorado
    Elon has said in the past that the new solar roof will pay for itself over time.
    Electrek now reports pricing, so I thought it time to see if I could validate Elon's statement

    Assumptions:
    12% efficiency
    20% generation capacity
    Half of roof PV
    15% average PV degradation

    Calc:
    • At $21.85 a square foot, $235 a square meter
    • 30 years of sunlight, 5 hours normal a day: 54750 kwh
    • At 12% efficiency, 6570 kWh
    • At 50% roof PV, 6570*0.5 = 3285 kWh
    • 15% degradation, 3285*0.85 = 2792 kWh
    Well. If the reported cost includes installation this is exciting stuff. And if not, the material is free which is also pretty compelling.
     

Share This Page

  • About Us

    Formed in 2006, Tesla Motors Club (TMC) was the first independent online Tesla community. Today it remains the largest and most dynamic community of Tesla enthusiasts. Learn more.
  • Do you value your experience at TMC? Consider becoming a Supporting Member of Tesla Motors Club. As a thank you for your contribution, you'll get nearly no ads in the Community and Groups sections. Additional perks are available depending on the level of contribution. Please visit the Account Upgrades page for more details.


    SUPPORT TMC