<!DOCTYPE html><html><head><title></title><style type="text/css">p.MsoNormal,p.MsoNoSpacing{margin:0}</style></head><body><div>Are you sure you're calculating that correctly? The average household across the entire US is 10mWh/year (i.e. 10,000kWh/year), and I'd imagine living in Arizona with the extra AC usage would bump that up a bit. That and given you have two AC units with a pool, using only a fifth of the average seems like a stretch.<br></div><div><br></div><div>My personal electric bill in the middle of the summer peaks at nearly 5mWh just for the month... <br></div><div><br></div><div>On Wed, Nov 27, 2024, at 5:56 PM, Snyder, Alexander J via PLUG-discuss wrote:<br></div><blockquote type="cite" id="qt" style=""><div dir="auto"><div>I'm on someone's Excel spreadsheet at SRP, with the sheet called "Assholes".<br></div><div dir="auto"><br></div><div dir="auto">I use, at my last check, like 2 megawatts per year, or something obscene like that.<br></div><div dir="auto"><br></div><div dir="auto">Powering my server stack is a part of that, but it's probably not that impactful. The two A/C, pool, pool heater/cool (like a third A/C unit) ... And my wife keeps the house around 68F all year ... Soooooo.<br></div><div dir="auto"><br></div><div dir="auto">I really do want solar, but my wife says that project isn't until the late 20s, at best, probably early 2030s.<br></div><div dir="auto"><br></div><div dir="auto">I really want the redundant A/B power supplies with the red cords and black cords. <br></div><div dir="auto"><br></div><div dir="auto">I'm the king of "Isn't that a bit excessive for a homelab?" ... So I think this is right up my alley!<br></div><div><br></div><div><div>---<br></div><div>Thanks,<br></div><div>Alexander<br></div><div><br></div><div>Sent from my Google Pixel 7 Pro<br></div></div></div><div><br></div><div class="qt-gmail_quote"><div dir="ltr" class="qt-gmail_attr">On Wed, Nov 27, 2024, 11:01 Stephen Partington via PLUG-discuss <<a href="mailto:plug-discuss@lists.phxlinux.org">plug-discuss@lists.phxlinux.org</a>> wrote:<br></div><blockquote class="qt-gmail_quote" style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0.8ex;border-left-width:1px;border-left-style:solid;border-left-color:rgb(204, 204, 204);padding-left:1ex;"><div dir="ltr"><div class="qt-gmail_default" style="font-family:trebuchet ms, sans-serif;">So solar usually pairs best with some level of power storage. and amazon has some amazing options going right now for far less than what you are getting quoted.<br></div><div class="qt-gmail_default" style="font-family:trebuchet ms, sans-serif;"><br></div><div class="qt-gmail_default" style="font-family:trebuchet ms, sans-serif;">Just the fast search comes up with this kit for a ton less than you are getting quoted.<br></div><div class="qt-gmail_default" style="font-family:trebuchet ms, sans-serif;">Bear in mind you will have to add in the cost of connecting it to your panel, but still an interesting baseline.<br></div></div><div><br></div><div class="qt-gmail_quote"><div dir="ltr" class="qt-gmail_attr">On Wed, Nov 27, 2024 at 12:41 PM George Toft via PLUG-discuss <<a href="mailto:plug-discuss@lists.phxlinux.org" target="_blank" rel="noreferrer">plug-discuss@lists.phxlinux.org</a>> wrote:<br></div><blockquote class="qt-gmail_quote" style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0.8ex;border-left-width:1px;border-left-style:solid;border-left-color:rgb(204, 204, 204);padding-left:1ex;"><div>A friend was looking into solar with a Tesla wall (battery). I looked at <br></div><div> her APS bill - it was $120/month. They were seriously considering <br></div><div> spending $25K to cut down on the peak demand charge. The most they would <br></div><div> save was $20/month. That's an ROI that would never be achieved.<br></div><div> <br></div><div> I have solar. APS invited me to buy a battery and they would pay me <br></div><div> $1250 if I let them manage it. The battery was quoted at $15K. Yeah, no. <br></div><div> So let's say I use the battery to keep my 4pm-7pm APS draw minimized, <br></div><div> what is my ROI? Looking at my past bills, my peak demand charge ranges <br></div><div> from $5 to $121 per month. Let's average that out to $65/month. So $15K <br></div><div> to save $65/month gives me an ROI of 230 months. It will be less due to <br></div><div> APS price increases, but that's still 15-20 years out, and by then the <br></div><div> battery would need to be replaced, nullifying any notion of an ROI.<br></div><div> <br></div><div> Regards,<br></div><div> <br></div><div> George Toft<br></div><div> <br></div><div> On 11/26/2024 3:31 PM, Keith Smith via PLUG-discuss wrote:<br></div><div> > Hi,<br></div><div> ><br></div><div> > I have been curious about solar for sometime.<br></div><div> ><br></div><div> > I am looking at my electric bill and I use less than 600k watts a <br></div><div> > month for 1/2 the year.<br></div><div> ><br></div><div> > My math does not seem to work out.<br></div><div> ><br></div><div> > 1) Convert 600000 watts at 120 volts * .1 = 60,000 watts at 12 volts.<br></div><div> > 2) 60,000 watts divided by 30 = 2000 watts at 12 volts per day.<br></div><div> > 3) If I can harvest solar for 4 hours a day that is 2000/4 = 500 watts <br></div><div> > at 12 volts.<br></div><div> ><br></div><div> > That means I only need 500 watts of solar. This does not take into <br></div><div> > consideration loss of power in the system.<br></div><div> ><br></div><div> > If the system losses 30% then I need around 715 watts of solar panels <br></div><div> > to meet my needs.<br></div><div> ><br></div><div> > I was expecting a lot more.<br></div><div> ><br></div><div> > Any help is much appreciated!!<br></div><div> ><br></div><div> > Keith<br></div><div> ><br></div><div> > ---------------------------------------------------<br></div><div> > PLUG-discuss mailing list: <a href="mailto:PLUG-discuss@lists.phxlinux.org" target="_blank" rel="noreferrer">PLUG-discuss@lists.phxlinux.org</a><br></div><div> > To subscribe, unsubscribe, or to change your mail settings:<br></div><div> > <a href="https://lists.phxlinux.org/mailman/listinfo/plug-discuss" rel="noreferrer noreferrer" target="_blank">https://lists.phxlinux.org/mailman/listinfo/plug-discuss</a><br></div><div> ---------------------------------------------------<br></div><div> PLUG-discuss mailing list: <a href="mailto:PLUG-discuss@lists.phxlinux.org" target="_blank" rel="noreferrer">PLUG-discuss@lists.phxlinux.org</a><br></div><div> To subscribe, unsubscribe, or to change your mail settings:<br></div><div> <a href="https://lists.phxlinux.org/mailman/listinfo/plug-discuss" rel="noreferrer noreferrer" target="_blank">https://lists.phxlinux.org/mailman/listinfo/plug-discuss</a><br></div></blockquote></div><div><br></div><div><br></div><div><span class="qt-gmail_signature_prefix">--</span><br></div><div dir="ltr" class="qt-gmail_signature"><div>A mouse trap, placed on top of your alarm clock, will prevent you from rolling over and going back to sleep after you hit the snooze button.<br></div><div><br></div><div>Stephen<br></div></div><div>---------------------------------------------------<br></div><div> PLUG-discuss mailing list: <a href="mailto:PLUG-discuss@lists.phxlinux.org" target="_blank" rel="noreferrer">PLUG-discuss@lists.phxlinux.org</a><br></div><div> To subscribe, unsubscribe, or to change your mail settings:<br></div><div> <a href="https://lists.phxlinux.org/mailman/listinfo/plug-discuss" rel="noreferrer noreferrer" target="_blank">https://lists.phxlinux.org/mailman/listinfo/plug-discuss</a><br></div></blockquote></div><div>---------------------------------------------------<br></div><div>PLUG-discuss mailing list: <a href="mailto:PLUG-discuss@lists.phxlinux.org">PLUG-discuss@lists.phxlinux.org</a><br></div><div>To subscribe, unsubscribe, or to change your mail settings:<br></div><div><a href="https://lists.phxlinux.org/mailman/listinfo/plug-discuss">https://lists.phxlinux.org/mailman/listinfo/plug-discuss</a><br></div><div><br></div></blockquote><div><br></div></body></html>