<div dir="ltr">Hi Dana,<br><div><br></div><div>If I understand your situation correctly, this can get complicated and depends on how the usage pattern is. A user that consumes during the day will need a smaller system than one that consumes when the sun isn't shining. Usually it's not one or the other but a blend of course.. </div><div><br></div><div>I think it means that anytime you are spinning the meter backwards, you get about 4/9 credit that can be applied to your bill. Your usage will be lowered 1:1 when the sun is shining, but at the time of export, it will only get a 4/9 return (the utility can't tell what is non-usage and what is production). </div><div><br></div><div>You can set up the bounds of the system size by saying, </div><div><br></div><div>What would the system size be if all usage occurs when the system is producing (the old net metering approach)? 1 usage:1 production</div><div>What would the system size be if all usage is at night? In this case, you would need a system that produced 9/4 of the kWh to fully offset or a multiplier of 2.25.</div><div><br></div><div>To make it more complex, you would need to find out if credits carry forward month to month or if its trued up each month.</div><div><br></div><div>Utilities can make it hard to get data to size the system correctly, but I'd probably shoot for 130-150% for an average house where people work. </div><div>Its not very easy to sell solar now and give assurances at all.</div></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Sat, Feb 22, 2025 at 8:42 AM Jay via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org">re-wrenches@lists.re-wrenches.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="auto"><div dir="ltr"></div><div dir="ltr">Hi Dana. </div><div dir="ltr"><br></div><div dir="ltr">Do you mean offsetting the $ amount or the kWh amount?</div><div dir="ltr">Jay</div><div dir="ltr"><br><blockquote type="cite">On Feb 22, 2025, at 8:33 AM, Dana Orzel via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org" target="_blank">re-wrenches@lists.re-wrenches.org</a>> wrote:<br><br></blockquote></div><blockquote type="cite"><div dir="ltr">
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<p class="MsoNormal"><span style="font-size:14pt;font-family:"Century Gothic",sans-serif">I am wondering if anyone else has this offset on Kwhr net meter discrepancy & how to design accurately design for this discrepancy.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:14pt;font-family:"Century Gothic",sans-serif">Idaho Powers’ version of net metering goes like this: 1 KW received from IPC charge is $ 0.09/Kwhr & solar input into the grid you are credited $0.04/Kwhr.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:14pt;font-family:"Century Gothic",sans-serif">The difference is 44.44% in the exchange for purchased vs solar export rate.
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<p class="MsoNormal"><span style="font-size:14pt;font-family:"Century Gothic",sans-serif">So, will oversizing the solar system by 44% to achieve a goal of 100% production of a client’s current 100% usage achieve this goal?<u></u><u></u></span></p>
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<p class="MsoNormal"><span style="font-size:12pt;font-family:"Century Gothic",sans-serif">_________________________________________________________<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:12pt;font-family:"Century Gothic",sans-serif;color:rgb(39,83,23)">Dana Orzel </span><span style="font-size:12pt;font-family:"Century Gothic",sans-serif;color:rgb(39,83,23)">GREAT SOLAR WORKS!
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</blockquote></div><div><br clear="all"></div><div><br></div><span class="gmail_signature_prefix">-- </span><br><div dir="ltr" class="gmail_signature"><div><br></div><div><font color="#305A78" face="'times new roman', serif"><br></font></div><div><br></div>Mac Lewis<br><br><span style="font-family:"Times New Roman";font-size:medium;color:rgb(255,153,0)"><b><font face="Arial, Helvetica, sans-serif" size="3"><p align="left"><font color="#000000" face="Verdana, Arial, Helvetica, sans-serif"><span style="font-size:small"><span style="font-family:arial;font-weight:normal;color:rgb(48,90,120)"><font face="'times new roman', serif">"Yo solo sé que no sé nada." </font><span style="font-weight:700;color:rgb(104,104,104)"><font face="'times new roman', serif">-Sócrates</font></span></span></span></font></p></font></b></span></div>