<div dir="ltr">Hi Hilton,<div><br></div><div>We've done the math for our installed cost on the Powerwall 2. Certainly, it wouldn't make sense to purchase it just for energy savings alone with current California residential electricity tariffs. However, most folks are buying it primarily for backup purposes and then a little bit of utility savings is just icing on the cake or what storage folks are calling "stacked benefits." The SGIP for many of our clients is over $5k per Powerwall (now a little lower) and many clients are pairing with PV and taking the 30% Fed tax credit. All in all, it is a very good deal. </div><div><br></div><div>August</div><div><br></div><div class="gmail_extra"><div class="gmail_quote">On Tue, Feb 13, 2018 at 3:35 PM, Hilton Dier <span dir="ltr"><<a href="mailto:hiltondier@gmail.com" target="_blank">hiltondier@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Has anyone calculated a lifetime cost per stored and delivered kWh for any of these lithium battery systems?<br>
<br>
>From the rough numbers I\u2019ve come up with in the past it seems like daily cycling to avoid grid use would be a dead loss. The capital cost vs capacity and cycle life doesn\u2019t add up.<br>
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Also, I know mentioning this is out of line per list etiquette, but could people refrain from including 20 preceding messages in their posts? I tend to read this on my phone and my scrolling finger is getting shorter. Thanks!<br>
<br>
Hilton<br>
<br>
Hilton Dier III<br>
Renewable Energy Design<br>
Missisquoi River Hydro LLC<br>
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