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Agreed -time of day vs. usage, home all day vs working folks.
<div>IPC monthly kwhr excess rolls over month to month with a reset in January that at which time you need to request that the roll over continues (for a $10 fee) or they clear the excess to 0 & you start over building your credit bank up.</div>
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<div dir="ltr">Dana Orzel - dana@solarwork.com - 208.721.7003</div>
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<blockquote type="cite">On Feb 22, 2025, at 9:23 AM, Mac Lewis via RE-wrenches <re-wrenches@lists.re-wrenches.org> wrote:<br>
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<div dir="ltr">Hi Dana,<br>
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<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>
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<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>
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<div>You can set up the bounds of the system size by saying, </div>
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<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>
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<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>
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<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>
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<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>
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<div dir="ltr">Hi Dana. </div>
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<div dir="ltr">Do you mean offsetting the $ amount or the kWh amount?</div>
<div dir="ltr">Jay</div>
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<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>
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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"><u></u> <u></u></span></p>
<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!
<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)">C – 208.721.7003 E –
<a href="mailto:dana@solarwork.com" target="_blank"><span style="color:rgb(39,83,23);text-decoration:none">dana@solarwork.com</span></a><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)">W - www.
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<p class="MsoNormal"><i><u><span style="font-size:12pt;font-family:"Century Gothic",sans-serif;color:rgb(39,83,23)">“Responsible Technologies for Responsible People since 1988!”<u></u><u></u></span></u></i></p>
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Mac Lewis<br>
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