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View Diary: Germany now has 1.3 million solar energy systems which generated 28 billion kilowatt hours in 2012 (139 comments)

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  •  that calculus can shift dramatically with an EV (10+ / 0-)

    the substantial majority of US households actually drive daily mileages that allow use of currently-available electric vehicles like the Nissan Leaf, Tesla Model S, etc etc.

    if you have a current gasoline car, it's an eye-opener to consider a PV array's annual kW/h production's value when you use it as a gasoline replacement, i.e. as transportation fuel.

    we now have 18 mths of production history for our 3.2kW array here in murky rainy Portland OR. we also rented a 2011 Leaf for ~5 months, to thoroughly assess its suitability for our specific life circumstances, and to find its actual energy consumption in our corner of the Real World.

    together, we know our system puts out approximately 16,000 miles of real-world Leaf driving range annually. for our current gas cars, the value of the energy needed to drive that distance if we continued to obtain it in the form of a carbon-based, highly-volatile, expensively-imported carcinogenic liquid, is around $3,500 yearly.

    at that level, our ROI is excellent. Time-to-breakeven on our net out-of-pocket costs, after applicable Federal and State incentive subsidies, is just 3.1 years. Primary system components are warranteed for 25 years of viable production (recent research suggests the probable functional lifespan may actually approach more like 40 yrs).

    based on very small-c conservative projections of future gasoline pricing [I modeled $3.85/gallon *flat* across all 22 years of warranty coverage!] we will net better than $45K gain after reaching break-even.

    that's significantly more than the full purchase price of an EV in the Leaf's class; probably also enough to cover a ful battery future battery replacement.

    somehow, we've been able to get over the raw indignity of having to pay PGE $10/month for that "service fee" you dislike so much, on all the months we're net producers!

    "Turning this country around [will] take years of siege warfare against deeply entrenched interests, defending a deeply dysfunctional political system." -PK

    by adrianrf on Wed Jan 09, 2013 at 06:31:07 PM PST

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    •  At that point I'd be very happy to get an EV (0+ / 0-)

      I don't count state and federal tax breaks into my calculations as they are simply pushing the cost elsewhere. Good econmics, but I think more in the general societal good.

      I think our kwh is well under 200 per month now.

      How big is your personal carbon footprint?

      by ban nock on Wed Jan 09, 2013 at 06:46:59 PM PST

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    •  One thing that bug me is the complint about the (3+ / 0-)
      Recommended by:
      BYw, Calamity Jean, Lawrence

      "high" price of electric and/or hybrid cars when people are still happy spending as much or more for huge Fuel-hog Pickups/SUV's or full size "Prestige" Cars and are proud enough of the vehicles to brag about the price of 'em.

    •  You're a revolutionary and you're on of the (3+ / 0-)
      Recommended by:
      translatorpro, IM, Roger Fox

      first stones in an avalanche that is going to end up burying Big Oil.

      All I can say is:

      You should feel really good about what you are doing there, as you are helping to create the wave of the future.

      What you're doing scares the living daylights out of Big Oil and is one of the reasons they worked so hard to defeat President Obama and Dems in general.

      My hat goes off to you, sir.

      "A candle loses nothing by lighting another candle" - Mohammed Nabbous, R.I.P.

      by Lawrence on Thu Jan 10, 2013 at 03:42:57 AM PST

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