<div dir="ltr">The Tesla media kit describes 2 models, a 7kwh and a 10kwh:<div><p style="margin:1.375rem 0px;padding:0px;border:0px;font-family:'HeiS ASC Simplified Chinese','HeiS ASC Simplified Chinese_n5',HelveticaNeue-Regular,'Helvetica Neue Regular','Helvetica Neue',Helvetica;font-size:0.9375rem;vertical-align:baseline;outline:none 0px;color:rgb(102,102,102);line-height:20px">Tesla’s selling price to installers is $3500 for 10kWh and $3000 for 7kWh. (Price excludes inverter and installation.) Deliveries begin in late Summer.</p><p style="margin:1.375rem 0px;padding:0px;border:0px;font-family:'HeiS ASC Simplified Chinese','HeiS ASC Simplified Chinese_n5',HelveticaNeue-Regular,'Helvetica Neue Regular','Helvetica Neue',Helvetica;font-size:0.9375rem;vertical-align:baseline;outline:none 0px;color:rgb(102,102,102);line-height:20px">Powerwall specs:</p><ul style="margin:0px;padding:0px 0px 35px 20px;border:0px;font-family:'HeiS ASC Simplified Chinese','HeiS ASC Simplified Chinese_n5',HelveticaNeue-Regular,'Helvetica Neue Regular','Helvetica Neue',Helvetica;font-size:15px;vertical-align:baseline;outline:none 0px;list-style-position:outside;color:rgb(102,102,102)"><li style="margin:0px;padding:0px;border:0px;font-family:inherit;vertical-align:baseline;outline:none 0px">Mounting: Wall Mounted Indoor/Outdoor</li><li style="margin:0px;padding:0px;border:0px;font-family:inherit;vertical-align:baseline;outline:none 0px">Inverter: Pairs with growing list of inverters</li><li style="margin:0px;padding:0px;border:0px;font-family:inherit;vertical-align:baseline;outline:none 0px">Energy: 7 kWh or 10 kWh</li><li style="margin:0px;padding:0px;border:0px;font-family:inherit;vertical-align:baseline;outline:none 0px">Continuous Power: 2 kW</li><li style="margin:0px;padding:0px;border:0px;font-family:inherit;vertical-align:baseline;outline:none 0px">Peak Power: 3.3 kW</li><li style="margin:0px;padding:0px;border:0px;font-family:inherit;vertical-align:baseline;outline:none 0px">Round Trip Efficiency: >92%</li><li style="margin:0px;padding:0px;border:0px;font-family:inherit;vertical-align:baseline;outline:none 0px">Operating Temperature Range: -20C (-4F) to 43C (110F)</li><li style="margin:0px;padding:0px;border:0px;font-family:inherit;vertical-align:baseline;outline:none 0px">Warranty: 10 years</li><li style="margin:0px;padding:0px;border:0px;font-family:inherit;vertical-align:baseline;outline:none 0px">Dimensions: H: 1300mm W: 860mm D:180mm</li></ul><div><font color="#666666" face="HeiS ASC Simplified Chinese, HeiS ASC Simplified Chinese_n5, HelveticaNeue-Regular, Helvetica Neue Regular, Helvetica Neue, Helvetica"><span style="font-size:15px">Nice price point, no info on the BMS or usable DOD.</span></font></div></div><div><br></div><div>Power only 2kW with peak of 3.3kW? Ouch, most off grid homes do better than that. Also 7-10 kWh of energy storage would be fine for an small, efficient off-grid home and conservative user, but my math shows only a few hours of autonomy time for the typical American homeowner.</div></div><div class="gmail_extra"><br clear="all"><div><div class="gmail_signature"><div dir="ltr">Dan Fink<div>Buckville Energy</div><div>IREC Certified Instructor™ for: </div><div>~ PV Installation Professional</div><div>~ Small Wind Installer</div><div>NABCEP / IREC / ISPQ Accredited Continuing Education Providers™<br>970.672.4342<br><br> </div></div></div></div>
<br><div class="gmail_quote">On Sat, May 2, 2015 at 6:45 AM, Chris Schaefer <span dir="ltr"><<a href="mailto:chris@solarandwindfx.com" target="_blank">chris@solarandwindfx.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div lang="EN-US" link="blue" vlink="purple"><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1f497d">Kurt, since you’re a vermonter perhaps you’ve got an inside contact with Green Mountain Power that can shed some light? Same issue here in NY, I’ve got phone messages and emails asking about it. So we kinda need to know what the battery voltage is in order to figure out how many amp hours the bank is. Wonder how many life cycles, suggested DOD?<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1f497d">Christopher<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1f497d"> Chris Schaefer’s<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1f497d"> <img width="283" height="58" src="cid:image009.png@01D084B4.0A0C6AB0" alt="SolarWindFX"><u></u><u></u></span></p><p class="MsoNormal"><i><span style="font-size:9.0pt;font-family:"Arial","sans-serif";color:#1f497d"> Tel/Fax <a href="tel:585-229-2083" value="+15852292083" target="_blank">585-229-2083</a> or Cell <a href="tel:585-748-1870" value="+15857481870" target="_blank">585-748-1870</a> <u></u><u></u></span></i></p><p class="MsoNormal"><i><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1f497d"> 5115 South Hill Road ~ Canandaigua New York 14424<u></u><u></u></span></i></p><p class="MsoNormal"><i><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1f497d"><a href="http://www.solarandwindfx.com" target="_blank">www.solarandwindfx.com</a> ~ E-mail: <a href="mailto:chris@solarandwindfx.com" target="_blank">chris@solarandwindfx.com</a><u></u><u></u></span></i></p><p class="MsoNormal" align="center" style="text-align:center"><u></u><span></span></p><table cellpadding="0" cellspacing="0" align="left"><tbody><tr><td width="63" height="4"></td><td width="60"></td><td width="12"></td><td width="70"></td><td width="12"></td><td width="88"></td></tr><tr><td height="1"></td><td rowspan="3" align="left" valign="top"><img width="60" height="81" src="cid:image010.jpg@01D084B4.0A0C6AB0"></td><td></td><td rowspan="2" align="left" valign="top"><img width="70" height="76" src="cid:image011.jpg@01D084B4.0A0C6AB0"></td></tr><tr><td height="75"></td><td></td><td></td><td rowspan="3" align="left" valign="top"><img width="88" height="81" src="cid:image012.jpg@01D084B4.0A0C6AB0"></td></tr><tr><td height="5"></td></tr><tr><td height="1"></td></tr></tbody></table><u></u><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black"><u></u> <u></u></span><p></p><p class="MsoNormal" align="center" style="text-align:center"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black"><u></u> <u></u></span></p><p class="MsoNormal" align="center" style="text-align:center"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black"><u></u> <u></u></span></p><p class="MsoNormal" align="center" style="text-align:center"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black"><u></u> <u></u></span></p><p class="MsoNormal" align="center" style="text-align:center"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black"><u></u> <u></u></span></p><p class="MsoNormal" align="center" style="text-align:center"><span style="color:#1f497d"><u></u> <u></u></span></p><br clear="ALL"><p class="MsoNormal" align="center" style="text-align:center"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">Thomas Jefferson, the author of our great Constitution, once said, "democracy" will cease to exist when you take away from those who are willing to work and give to those who would not."</span><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1f497d"><u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1f497d"><u></u> <u></u></span></p><div><div style="border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0in 0in 0in"><p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> RE-wrenches [mailto:<a href="mailto:re-wrenches-bounces@lists.re-wrenches.org" target="_blank">re-wrenches-bounces@lists.re-wrenches.org</a>] <b>On Behalf Of </b>Kirk Herander<br><b>Sent:</b> Saturday, 02 May, 2015 07:22<br><b>To:</b> <a href="mailto:glenn.burt@glbcc.com" target="_blank">glenn.burt@glbcc.com</a>; 'RE-wrenches'</span></p><div><div class="h5"><br><b>Subject:</b> Re: [RE-wrenches] Tesla Powerwall battery paired with solar<u></u><u></u></div></div><p></p></div></div><div><div class="h5"><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal"><span style="font-size:14.0pt;color:#1f497d">John Berdner of Solaredge (still with them??) in a previous discussion on this forum has stated that Solaredge can be AC-coupled, with a firmware tweak I believe he said.<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:14.0pt;color:#1f497d"><u></u> <u></u></span></p><div><p class="MsoNormal"><b><span style="font-size:14.0pt;color:#1f497d">Kirk Herander<u></u><u></u></span></b></p><p class="MsoNormal"><b><span style="font-size:14.0pt;color:#1f497d">VT Solar, LLC <u></u><u></u></span></b></p><p class="MsoNormal"><b><i><span style="font-size:14.0pt;color:#1f497d">Proven PV provider since 1991<u></u><u></u></span></i></b></p><p class="MsoNormal"><b><span style="font-size:14.0pt;color:#1f497d"><a href="http://www.vermontsolarnow.com" target="_blank">www.vermontsolarnow.com</a><u></u><u></u></span></b></p><p class="MsoNormal"><span style="font-size:14.0pt;color:#1f497d">dba Vermont Solar Engineering<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:14.0pt;color:#1f497d">NABCEP<sup>TM </sup>Inaugural Certificant<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:14.0pt;color:#1f497d">VT RE Incentive Program Partner<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:14.0pt;color:#1f497d"><a href="tel:802.863.1202" value="+18028631202" target="_blank">802.863.1202</a><u></u><u></u></span></p></div><p class="MsoNormal"><span style="font-size:14.0pt;color:#1f497d"><u></u> <u></u></span></p><div><div style="border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0in 0in 0in"><p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> RE-wrenches [<a href="mailto:re-wrenches-bounces@lists.re-wrenches.org" target="_blank">mailto:re-wrenches-bounces@lists.re-wrenches.org</a>] <b>On Behalf Of </b>Glenn Burt<br><b>Sent:</b> Friday, May 01, 2015 7:47 PM<br><b>To:</b> 'RE-wrenches'<br><b>Subject:</b> Re: [RE-wrenches] Tesla Powerwall battery paired with solar<u></u><u></u></span></p></div></div><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal"><span style="color:#1f497d">I can tell you that the Solar Edge inverters do not support AC coupling, as their reps told me at the NABCEP CE conference…<u></u><u></u></span></p><p class="MsoNormal"><span style="color:#1f497d">I have seen pictures of some Solar City battery systems that use an XW as the inverter.<u></u><u></u></span></p><p class="MsoNormal"><span style="color:#1f497d"><u></u> <u></u></span></p><div><div style="border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0in 0in 0in"><p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> RE-wrenches <a href="mailto:[mailto:re-wrenches-bounces@lists.re-wrenches.org]" target="_blank">[mailto:re-wrenches-bounces@lists.re-wrenches.org]</a> <b>On Behalf Of </b>August Goers<br><b>Sent:</b> Friday, May 01, 2015 6:50 PM<br><b>To:</b> RE-wrenches<br><b>Subject:</b> [RE-wrenches] Tesla Powerwall battery paired with solar<u></u><u></u></span></p></div></div><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal">Hi Wrenches,<u></u><u></u></p><p class="MsoNormal"> <u></u><u></u></p><p class="MsoNormal">I’m sure you’ve seen the Tesla Powerwall press releases by now:<u></u><u></u></p><p class="MsoNormal"> <u></u><u></u></p><p class="MsoNormal"><a href="http://www.teslamotors.com/presskit/teslaenergy" target="_blank">http://www.teslamotors.com/presskit/teslaenergy</a><u></u><u></u></p><p class="MsoNormal"> <u></u><u></u></p><p class="MsoNormal">We are already getting calls from interested homeowners. The product mostly seems like a toy for wealthy people but nonetheless I would like to be educated in how it works. <u></u><u></u></p><p class="MsoNormal"> <u></u><u></u></p><p class="MsoNormal">There is mention that the battery pairs with Solar Edge inverters which makes sense because both the Powerwall and Solar Edge work off of ~350 VDC. But, I can’t figure out how off grid operation would work during power outages. Maybe another battery inverter like a Schneider Conext is required?<u></u><u></u></p><p class="MsoNormal"> <u></u><u></u></p><p class="MsoNormal">Any thoughts on this product for better or worse? <u></u><u></u></p><p class="MsoNormal"> <u></u><u></u></p><p class="MsoNormal">Best,<u></u><u></u></p><p class="MsoNormal"> <u></u><u></u></p><p class="MsoNormal">August<u></u><u></u></p><p class="MsoNormal"> <u></u><u></u></p></div></div></div></div><br>_______________________________________________<br>
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