[{"data":1,"prerenderedAt":745},["ShallowReactive",2],{"project-14821478":3},{"id":4,"name":5,"line":5,"line_source":6,"title":7,"url":8,"domain":9,"maker":10,"posted_at":11,"year":12,"points":13,"comments":14,"rank_in_year":15,"shown_in_year":16,"top":17,"tier":18,"category":19,"subcategory":20,"format":21,"keywords":22,"reception":28,"sentiment":29,"stance_mix":30,"scored_comments":34,"aspects":35,"strip":48,"post_text":49,"what":50,"said":67,"maker_in_thread":191,"shape":203,"grid":207,"attempts":702,"same_week":707,"maker_shows":205,"maker_hidden":737,"reader_version":738,"card":739},"14821478","$200 Solar Self-Sufficiency  Without Your Landlord Noticing","title","Show HN: $200 Solar Self-Sufficiency  Without Your Landlord Noticing","https:\u002F\u002Fmedium.com\u002F@nikodunk\u002F200-for-a-green-diy-self-sufficient-bedroom-that-your-landlord-wont-hate-b3b4cdcfb4f4","medium.com","nikodunk",1500652368,2017,491,182,23,2242,2,"legend","infrastructure","off-grid solar power","other",[23,24,25,26,27],"solar power","off grid","balcony solar","lead acid battery","renter solar","mixed",-0.202,{"positive":31,"neutral":32,"mixed":17,"critical":33},11,37,32,82,{"execution":36,"pricing":39,"idea":41,"design":43,"performance":45,"docs":47},{"positive":37,"critical":38},4,15,{"positive":40,"critical":37},1,{"positive":42,"critical":42},3,{"positive":44,"critical":17},0,{"positive":44,"critical":46},5,{"positive":40,"critical":17},[46,42,44,37,42,40,40,17,42,40,46,46,40,44,40,44,44,44,40,42,46,40,46,44,40,17,42,17,40,46,17,42,42,17,17,42,40,40,40,40],null,{"problem":51,"audience":49,"pricing":57,"motivation":49,"time_to_build":49,"stack":65,"openness":66,"stage":66,"team_size":66},{"value":52,"source":53,"evidence":54},"Renters want self-sufficient solar power without landlord permission","inferred",[55],{"id":56},"post",{"value":58,"source":53,"evidence":59},"About $200 total build cost",[60,61],{"id":56},{"id":62,"by":63,"text":64},"14823521","galdosdi","Cool! The one thing I notice the author gets wrong is (out of modesty perhaps) claiming the system isn't very financially successful. But it actually is! > 200W system payback…",[],"unknown",{"praise":68,"objections":85,"requests":136,"questions":160,"alternatives":179},[69,81],{"value":70,"source":71,"evidence":72},"Useful for off-grid and backup power","commenter",[73,77],{"id":74,"by":75,"text":76},"14823986","grecy","I built a very similar system into my Jeep-house. I have two 100W panels on the pop-top roof, a charge controller and a dedicated solar battery (isolated from the engine-starting…",{"id":78,"by":79,"text":80},"14824630","mrbill","After Hurricane Ike (and 8 days without power) I built almost this exact setup to power my CPAP machine in case of another long-term power outage.",{"value":82,"source":71,"evidence":83},"Financially attractive payback",[84],{"id":62,"by":63,"text":64},[86,101,116,125],{"value":87,"source":71,"evidence":88},"Panel could blow off roof in wind",[89,93,97],{"id":90,"by":91,"text":92},"14824407","sitkack","Please bolt the panel down, if wind picks it up and blows it off the roof it could easily kill someone.",{"id":94,"by":95,"text":96},"14821526","olegkikin","It better be attached well. If there's a windy day, and that thing flies off and kills someone, you will not only be liable, you will have to live for the rest of your life with…",{"id":98,"by":99,"text":100},"14824702","diafygi","I work in solar, and your panel really, really, REALLY needs to be secured from wind. Luckily, they make ballast mounts that don't require screwing into the roof[1][2]. [1]:…",{"value":102,"source":71,"evidence":103},"Deep discharge will kill lead-acid battery quickly",[104,108,112],{"id":105,"by":106,"text":107},"14825992","kogepathic","The author's calculations for the capacity of the battery are very wrong and the battery will not last many years the way he's using it. Deep cycle lead-acid batteries should not…",{"id":109,"by":110,"text":111},"14824530","cjonas","Obvious Problems: 1: You're not using a pure sine wave inverter so right off the back you are losing significant efficiency (Most the things you're charging use DC power anyways…",{"id":113,"by":114,"text":115},"14825258","SwellJoe","I've been using rooftop solar for many years; I live in an RV (for a total of about 7 years, spread across two different RVs, both with solar on the roof). I currently have a…",{"value":117,"source":71,"evidence":118},"Inverter wasteful and square wave output",[119,123,124],{"id":120,"by":121,"text":122},"14825325","bvanderveen","Can't imagine why OP has an inverter in the stack when everything connected to it is DC.",{"id":109,"by":110,"text":111},{"id":105,"by":106,"text":107},{"value":126,"source":71,"evidence":127},"Landlord rules may forbid rooftop and window items",[128,132],{"id":129,"by":130,"text":131},"14824813","adrianmonk","> Renters don’t need permission from their landlords to place things on their windowsill and rooftops if it’s not altering the building This has never been the case in any…",{"id":133,"by":134,"text":135},"14824360","URSpider94","Have you talked to your landlord about adding solar panels to the roof? He\u002Fshe could install them and connect them to your apartment's service, which means you would get the…",[137,142,149],{"value":138,"source":71,"evidence":139},"Secure panel against wind",[140,141],{"id":98,"by":99,"text":100},{"id":90,"by":91,"text":92},{"value":143,"source":71,"evidence":144},"Use grid-tie inverter to credit the electric bill",[145],{"id":146,"by":147,"text":148},"14823798","mchannon","Far more cost-effective would have been to skip the battery and just put a cheap chinese pure-sine-wave grid-tie inverter to bridge between the wall outlet and the panel. It's…",{"value":150,"source":71,"evidence":151},"Power a fridge or fan with the excess energy",[152,156],{"id":153,"by":154,"text":155},"14823168","jaclaz","JFYI, the back of the envelope calculation is about energy \"created\", this assumes that you actually consume it, i.e. that on average you would use that energy (while it is…",{"id":157,"by":158,"text":159},"14826866","luxpir","He mentions fridge\u002Ffreezer - I'll just draw attention to this project[0] where the smart guy uses a chest freezer as a fridge with an external thermostat. It has better…",[161,172],{"value":162,"source":71,"evidence":163},"Is a battery safe indoors",[164,168],{"id":165,"by":166,"text":167},"14823488","ruffrey","How safe is it to keep that battery indoors? Don't batteries need some ventilation?",{"id":169,"by":170,"text":171},"14825705","wfunction","This is awesome. The one question on my mind is: is there really no barrier to doing this, like regulation of some kind? I would imagine there's an added fire risk with that kind…",{"value":173,"source":71,"evidence":174},"Does seasonal output vary",[175],{"id":176,"by":177,"text":178},"14825306","msangi","Does the panel produce the same amount of energy every season? I know that in most of Europe the production during summer months is way higher than during winter and that needs…",[180,187],{"value":181,"source":71,"evidence":182},"Yeti-style pre-built solar kits",[183],{"id":184,"by":185,"text":186},"14825402","gwbas1c","These already exist as self-contained kits:…",{"value":188,"source":71,"evidence":189},"Grid-tie inverter setup",[190],{"id":146,"by":147,"text":148},{"comments":192,"answered":37,"key":193},18,[194,197,200],{"id":195,"text":196},"14823684","Wow that's a really good point.",{"id":198,"text":199},"14824863","Very good point! Hadn't thought of second-hand components. That'd help with the environmental footprint, too!",{"id":201,"text":202},"14824858","Hahahaha that's an awesome point and not something I'd thought of. But it seems that on your recent bill they're including the service fee in that – I'm only paying 14 I believe?…",{"commenters":204,"max_depth":31,"maker_replies":192,"first_comment_mins":205,"lifespan_hours":206},110,6,101,[208,210,214,218,220,224,226,228,232,235,238,241,244,246,248,251,254,256,260,263,265,266,269,270,274,277,280,283,285,289,292,294,297,300,303,305,308,310,313,317,320,323,326,327,330,333,336,339,341,344,347,349,352,355,358,360,363,365,368,371,375,378,381,383,384,387,390,392,395,397,400,402,405,407,410,412,414,416,418,420,422,424,427,430,432,435,437,439,441,443,446,448,453,456,458,461,466,469,471,474,477,479,483,486,488,491,494,497,500,502,504,508,510,514,518,520,523,526,528,532,534,537,539,541,544,546,548,550,551,554,556,558,561,563,566,568,571,573,576,580,583,586,589,591,595,597,599,603,605,609,612,616,619,624,627,631,635,637,640,643,645,647,651,653,656,659,661,663,666,669,672,674,677,680,683,685,687,689,692,695,698,700],[74,44,46,209,75,44],"project\u002Fpositive\u002Fexecution",[211,44,42,212,213,44],"14824421","project\u002Fneutral\u002Fpricing","AnimalMuppet",[215,44,44,216,217,44],"14824486","commenter\u002Fneutral\u002Fnone","mod",[219,44,44,216,213,44],"14824533",[221,44,44,222,223,44],"14824640","other\u002Fneutral\u002Fnone","Washuu",[225,44,42,212,110,44],"14824797",[227,44,42,212,75,44],"14827247",[229,44,42,230,231,44],"14824686","project\u002Fneutral\u002Fidea","dchuk",[233,44,44,216,234,44],"14824697","nettdata",[236,44,44,216,237,44],"14824772","radiorental",[239,44,44,216,240,44],"14824814","throwanem",[242,44,44,216,243,44],"14824915","jws",[245,44,44,216,234,44],"14824923",[247,44,44,216,158,44],"14826274",[249,44,44,216,250,44],"14826196","ajro",[252,44,42,253,75,44],"14827257","project\u002Fneutral\u002Fdesign",[255,44,42,253,75,44],"14827252",[257,44,46,258,259,44],"14825544","maker\u002Fpositive\u002Fnone","kilroy123",[261,44,42,230,262,44],"14826307","jsingleton",[62,40,42,264,63,44],"project\u002Fmixed\u002Fpricing",[195,40,44,258,10,40],[267,40,42,264,268,44],"14823698","cr0sh",[198,40,44,258,10,40],[271,40,40,272,273,44],"14823961","project\u002Fcritical\u002Fpricing","pilom",[275,40,44,276,63,44],"14824119","commenter\u002Fneutral\u002Fpricing",[278,40,44,279,273,44],"14824165","commenter\u002Fcritical\u002Fexecution",[281,40,44,216,282,44],"14825459","JumpCrisscross",[284,40,44,216,63,44],"14849520",[286,40,40,287,288,44],"14825917","project\u002Fcritical\u002Fexecution","jldugger",[290,40,44,216,291,44],"14825980","emiliobumachar",[293,40,44,216,63,44],"14849564",[295,40,40,272,296,44],"14823979","xsmasher",[298,40,42,299,63,44],"14824090","project\u002Fneutral\u002Fperformance",[301,40,42,212,302,44],"14824594","matt_wulfeck",[201,40,44,304,10,40],"maker\u002Fneutral\u002Fnone",[306,40,44,216,307,44],"14825147","sokoloff",[309,40,42,304,302,44],"14825321",[311,40,44,312,288,44],"14825945","other\u002Fneutral\u002Fpricing",[314,40,44,315,316,44],"14824375","other\u002Fneutral\u002Fperformance","layoric",[318,40,44,222,319,44],"14826105","oelmekki",[321,40,40,272,322,44],"14826121","erikb",[324,40,42,212,325,44],"14827336","vedanta",[98,17,40,287,99,44],[328,17,44,329,10,40],"14824869","maker\u002Fpositive\u002Fexecution",[331,17,40,287,332,44],"14826259","agumonkey",[334,17,44,222,335,44],"14824924","coltonv",[337,17,44,222,338,44],"14824968","ilaksh",[340,17,44,222,262,44],"14826294",[342,17,44,222,343,44],"14827877","jononor",[345,42,46,209,346,44],"14823943","ChuckMcM",[348,42,44,258,10,40],"14823960",[350,42,44,222,351,44],"14824974","dba7dba",[353,42,44,222,354,44],"14827461","kerbalspacepro",[356,42,46,209,357,44],"14825361","liyanage",[359,37,44,216,273,44],"14823931",[361,37,42,304,362,44],"14823980","rbritton",[364,37,44,216,273,44],"14824030",[366,37,40,272,367,44],"14825677","megablast",[369,46,44,222,370,44],"14824411","mdb333",[372,46,44,373,374,44],"14824822","other\u002Fcritical\u002Fnone","arcaster",[376,46,44,216,377,44],"14824930","Dylan16807",[379,46,44,222,380,44],"14825042","backtoyoujim",[382,46,44,222,134,44],"14825278",[90,205,40,287,91,44],[385,205,44,216,386,44],"14824528","Retric",[388,205,44,216,389,44],"14824597","mbreese",[391,205,44,216,386,44],"14825260",[393,205,44,216,394,44],"14825529","quickben",[396,205,44,216,386,44],"14826747",[398,205,44,216,399,44],"14824752","serf",[401,205,44,216,386,44],"14825511",[403,205,44,216,404,44],"14824807","accountyaccount",[406,205,44,216,386,44],"14825281",[408,205,44,216,409,44],"14825347","1_2__4",[411,205,44,216,386,44],"14825509",[413,205,44,216,394,44],"14825546",[415,205,44,216,386,44],"14825935",[417,205,44,216,394,44],"14827919",[419,205,44,216,91,44],"14830297",[421,205,44,216,386,44],"14838750",[423,205,44,216,386,44],"14838771",[425,205,40,287,426,44],"14824896","ChoGGi",[428,205,40,287,429,44],"14824904","enraged_camel",[431,205,44,216,386,44],"14825285",[433,205,44,216,434,44],"14825338","trhway",[436,205,44,216,386,44],"14825493",[438,205,44,216,434,44],"14825587",[440,205,44,216,386,44],"14825857",[442,205,40,287,332,44],"14826272",[444,205,44,445,10,40],"14825583","maker\u00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