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

Driving on Sunshine

Discussion in 'Energy, Environment, and Policy' started by dhrivnak, Oct 2, 2013.

?

Do you have solar to power your car?

  1. Yes

    242 vote(s)
    63.0%
  2. No

    49 vote(s)
    12.8%
  3. No, but hope to soon

    93 vote(s)
    24.2%
  1. mknox

    mknox Well-Known Member

    Joined:
    Aug 7, 2012
    Messages:
    10,103
    Location:
    Toronto, ON
    In Ontario, grid connected solar has to have "anti-islanding" circuitry which cuts off the generation if utility power goes down. Grid connected gets you the premium feed-in-tariff rates, so it's the way to go financially but can't be used as emergency generation.
     
  2. scott2613

    scott2613 Member

    Joined:
    Jun 3, 2013
    Messages:
    121
    Location:
    Wisconsin
    We will have our 72kW system running within about two weeks. I'll post photos as it's installed. The system will provide the power to run our body shop as well as the HPWC and level two 75A Clipper Creek J1772 public charging stations outside.
     
    • Like x 1
  3. ecarfan

    ecarfan Well-Known Member

    Joined:
    Sep 21, 2013
    Messages:
    18,764
    Location:
    San Mateo, CA
    dhrivnak, where do you live? I am in California. My understanding was that in California, PV systems that were grid tied were not allowed to be configured to have off grid capability.

    I'm very interested in the new inverter you describe.
     
  4. dhrivnak

    dhrivnak Active Member

    Joined:
    Jan 8, 2011
    Messages:
    4,197
    Location:
    NE Tennessee
    You do need to manually throw the disconnect to the grid and switch on the option so it is not automatic. Then you need to reverse when the grid is back. But it is perfectly safe and legal. And it is UL approved.
     
  5. ecarfan

    ecarfan Well-Known Member

    Joined:
    Sep 21, 2013
    Messages:
    18,764
    Location:
    San Mateo, CA
    Thank you! That capability makes so much sense to me. In my neighborhood power outages are rare but do happen every year or two. Duration can be minutes to hours (longest was maybe 8 hours).

    Once I take delivery of my S85 in early December I will take a few months to see what my increased electrical usage is and then have enough data to properly size a PV system.
     
  6. rjcbox

    rjcbox Member

    Joined:
    Sep 4, 2013
    Messages:
    543
    Location:
    PA, USA
    #26 rjcbox, Oct 17, 2013
    Last edited: Oct 21, 2013
    Article on the new inverters, which I'll be buying for my next PV system:

    http://www.greenbuildingadvisor.com/blogs/dept/energy-solutions/getting-power-solar-equipment-when-grid-down?utm_source=email&utm_medium=eletter&utm_content=gba_eletter&utm_campaign=green-building-advisor-eletter

    P.S. I think the electric grid (as least where I am) has only <0.1% downtime, however, being that these inverters will be cost-comparable, will be a great option - especially for situations like Hurricane Sandy when we lost power for several days, many were sunny days after the storm passed
     
  7. dhrivnak

    dhrivnak Active Member

    Joined:
    Jan 8, 2011
    Messages:
    4,197
    Location:
    NE Tennessee
    Wow 60% of Tesla owners have solar. Very impressive. I just received my first power bill since the install and used 17 KWh last month for a cost of $8.32. Going green is very sweet.
     
  8. Raffy.Roma

    Raffy.Roma Active Member

    Joined:
    Jul 22, 2012
    Messages:
    3,253
    Location:
    Rome (Italy)
    Cool. :cool:
     
  9. dhrivnak

    dhrivnak Active Member

    Joined:
    Jan 8, 2011
    Messages:
    4,197
    Location:
    NE Tennessee
    #29 dhrivnak, Nov 28, 2013
    Last edited: Nov 28, 2013
    Hoping to get a few more votes, how many Tesla owners have gone solar? My system has been on-line for 2 months now. Last month I fully covered the electric needs for the house and the car; The $7.20 fee is the connection charge. The reality of a sustainable future is here now! Electric_11_2013.jpg
     
  10. Tesla 940

    Tesla 940 Member

    Joined:
    Nov 2, 2011
    Messages:
    277
    Location:
    Santa Fe & Taos, NM and Long Beach, CA
    In Long Beach it has been 10 years 3 months - last month's charge was $0.95. Does that qualify me to be considered an "early adapter"? In New Mexico I purchase 15 panels (3.5kw) in a co-op 12 months ago. I may purchase a couple more to totally eliminate my monthly electric bill there.
     
  11. dhrivnak

    dhrivnak Active Member

    Joined:
    Jan 8, 2011
    Messages:
    4,197
    Location:
    NE Tennessee
    You are absolutely an early adopter! Way to go and show the rest of us the future.
     
  12. dhrivnak

    dhrivnak Active Member

    Joined:
    Jan 8, 2011
    Messages:
    4,197
    Location:
    NE Tennessee
    Can we get to 100 votes? How many owners have solar or are planning on it. I would love a larger sample for an upcoming presentation at the East TN environmental conference. Thank you.
     
  13. Al Sherman

    Al Sherman It's about THIS car.

    Joined:
    Nov 29, 2012
    Messages:
    1,687
    Location:
    Batesville, IN
    K. I voted hope to soon. I want solar badly and will probably do it. I simply can't make the numbers work. I'm not sure what I'm doing wrong. Might just be the useable sunlight in Indiana, or the markup that the folks I'm getting quotes from are taking. Or, maybe because there are no incentives in Indiana. NONE. I know it's not all about numbers (dollars) but I'd be dead well before it became worthwhile to write the check. I keep hearing about the price of panels dropping drastically but I simply can't justify the dollars.
    As I said, I'll probably do it anyway because I want it. BUT I'd like to be able to tell my neighbors why they should do it also. Let's face it; cost is the number one factor for most people.
     
  14. gg_got_a_tesla

    gg_got_a_tesla Model S: VIN 65513, Model 3: VIN 1913

    Joined:
    Jan 29, 2010
    Messages:
    6,531
    Location:
    Redwood Shores, CA
    Used to have a 2 kW PV system - installed by SolarCity in their early days back in 2007 - in my previous house before I moved last summer. I had about 5 months of driving on sunshine.

    Contemplating a system for the new house but, given that my charging needs are met at work, not sure if my electricity usage patterns otherwise justify it.

    All the same, I'm looking into this instead of a conventional large PV panel system:

    DOW POWERHOUSE: Solar Shingle

    Replace Your Roof And Generate Electricity From Solar Shingles - Forbes

    Anyone have any deeper knowledge of these? I like how they are the roof themselves rather than be on top of one. Had a terrible experience with pigeons roosting between the panels and the roof tiles at my last place so, not too thrilled with the idea of a conventional install. Solar shingles are comparatively pricier but, I'd need a new roof soon anyway so, this makes sense.
     
  15. VolkerP

    VolkerP EU Model S P-37

    Joined:
    Jul 6, 2011
    Messages:
    2,464
    Location:
    Germany
    solar shingles cannot shed heat as easy as a conventionally rooftop mounted solar module. You will see severe drop in output unless it's cool and/or windy outside.
    Ask your installer for a reference installation to see. Check their output curves and compare them with similarly oriented PV arrays in the neighborhood.

    Installing pidgeon defences is a major industry, OTOH. They should have a solution for you.
     
  16. dhrivnak

    dhrivnak Active Member

    Joined:
    Jan 8, 2011
    Messages:
    4,197
    Location:
    NE Tennessee
    As for the cost/payback of solar I was able to get my 7.1 KW system installed for $3.75/watt. The ONLY incentive was the 30% federal credit. With net metering and $.085/KWH I figure about a 5% return which is after taxes and indexed for inflation. Not a great return but one could also do far worse.

    As for Dow Solar Shingles I tried hard to get them but they are in a VERY slow ramp up and they would not sell in my state. I think they only sell in CA, CO, and TX and even then through a very limited set of installers.
     
  17. Ugliest1

    Ugliest1 S85: "Sparky"

    Joined:
    Aug 19, 2013
    Messages:
    1,400
    Location:
    Victoria BC Canada
    In case the explanation will help: I voted no; I live in a condo so the approval process is far more complicated. Also I just managed to get two 60 amp EVSE's installed (live mid-Jan) so I don't want to immediately approach the strata council with another non-ROI idea. Especially because at the moment I'm the only one using the charging stations, plus an occasional visiting Volt. I have thought about it, and will continue, but I can't see the time being right in the foreseeable future.
     
  18. miimura

    miimura Well-Known Member

    Joined:
    Aug 21, 2013
    Messages:
    5,245
    Location:
    Los Altos, CA
    To me, the primary consideration as to whether it pays off or not is your current electric rates. I've heard of rates in the midwest that are flat at below 15 cents/kWh. At that price, I would not bother going solar. California has tiered electric rates that are so high that you're foolish not to put up at least a small solar system to get you back down to baseline prices.
     
  19. dhrivnak

    dhrivnak Active Member

    Joined:
    Jan 8, 2011
    Messages:
    4,197
    Location:
    NE Tennessee
    I was happy to lend a charge to a fellow EV who was passing through the area on his way to Washington DC. Too bad Tesla changed the charge connector as I can only offer Model S owners 48 amp J-1772 charging rather than the 64 amps available from my Roadster HPC. But my 12 KW is far better than the 6 KW you get from local J-1772 options in the area.

    Giving_a_charge.jpg

    If you have not yet done so please list on PlugShare as you never know when you can lend a hand.

    PS Yes the charge currents are quirky installing my own equipment one has more flexibility in design options.
     
  20. gg_got_a_tesla

    gg_got_a_tesla Model S: VIN 65513, Model 3: VIN 1913

    Joined:
    Jan 29, 2010
    Messages:
    6,531
    Location:
    Redwood Shores, CA
    Great shot with that snow in TN!
     

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