I-Tesla, i-Huawei, i-LG, i-Sonnen, i-SolarEdge, i-BSLBATT, imbalwa nje kwenqwaba yemikhiqizo yamabhethri elanga emakethe athengiswayo futhi afakwa nsuku zonke, ngokukhula kwamandla avuselelekayo aluhlaza kanye noxhaso oluvela kuzinqubomgomo zikazwelonke. Kodwa bona lapha... Ezimweni ezingu-70%, ibhange elifakiwe lebhethri lelanga lasekhaya alisebenzi kahle futhi alihlangabezani nezici zesistimu ye-PV, ngaleyo ndlela iguqule ibe yi-investimenti embi futhi engenanzuzo. Masibhekane nakho, inhloso eyodwa yebhethri lelanga lasekhaya ukukhiqiza ukonga ngesistimu ye-PV, kodwa ngokuvamile ayisetshenziswa kahle, ngenxa yokuthi uthenga umkhiqizo onezici ezingafaneleki. 
Kodwa yiziphi izici okufanele amasistimu ebhethri elanga lasekhaya asebenze kahle? Yini okufanele uyibheke lapho ukhetha ibhethri yokugcina amandla ekhaya ukuze ugweme ukuchitha imali? Ake sithole ndawonye kulesi sihloko. 1. Amandla ebhethri. Njengoba igama lisho, umsebenzi we-iphakethe lebhethri lelanga lasekhayaiwukugcina amandla engeziwe akhiqizwa uhlelo lwe-PV phakathi nosuku ukuze lusetshenziswe ngokushesha lapho uhlelo lungasakwazi ukukhiqiza amandla anele ukunika amandla umthwalo wasekhaya. Ugesi wamahhala okhiqizwa uhlelo udlula endlini, unike amandla izinto zikagesi ezinjengeziqandisi, imishini yokuwasha namaphampu okushisa, bese ufakwa kugridi. Ibhethri le-Lithium Yasekhaya lenza kube nokwenzeka ukubuyisela la mandla adlulele, ebengase acishe anikezwe umbuso, futhi asetshenziswe ebusuku, ukugwema isidingo sokudonsa amandla engeziwe ngenkokhelo. E-Zerø Gas House (esebenza ngogesi ngokuphelele), isitoreji sebhethri lelanga lasekhaya sibalulekile ngoba, njengoba idatha iphenya futhi ibika, ukukhiqiza kwasebusika kwesistimu akukwazi ukuhlangabezana nokwanelisa ukumuncwa kwamandla kwephampu yokushisa. Umkhawulo kuphela uma kunqunywa usayizi wesistimu ye-PV. ● Indawo yophahla ● Isabelomali esitholakalayo ● Uhlobo lwesistimu (isigaba esisodwa noma isigaba sesithathu) 
Ngebhethri lelanga Lasekhaya, ukulinganisa kubalulekile. Ukukhula komthamo webhange lebhethri lelanga lasekhaya, likhulu inani eliphakeme lemali esetshenziswayo kanye nokonga “okwenzeke kwenzeke” okukhiqizwa uhlelo lwe-PV. Ukulinganisa okufanele, ngivame ukuncoma ukuthi ibhethri lelanga le-lithium ion lilinganiswe ngokuphindwe kabili kunomthamo wesistimu ye-PV. Uma unesistimu engu-5 kW, umqondo wukuthi uhambe ne-aIbhange lebhethri elingu-10 kWh. Isistimu engu-10 kW?20 kWh ibhethri. Njalo njalo… Lokhu kungenxa yokuthi ebusika, lapho isidingo sikagesi siphezulu, isistimu ye-PV engu-1 kW ikhiqiza cishe u-3 kWh wamandla. Uma ngokwesilinganiso i-1/3 yala mandla imuncwa izinto zikagesi zasendlini ukuze zizisebenzisele yona, 2/3 ifakwa kugridi. Ngakho-ke, ibhange lebhethri lelanga lasekhaya eliphindwe kabili ngobukhulu besistimu liyadingeka. Entwasahlobo nasehlobo, amasistimu elanga akhiqiza amandla amaningi, kodwa inani lamandla agcinwe alikhuli ngokufanele. Uyafuna ukuthenga isistimu yebhethri enkulu? Ungakwenza lokho, kodwa uhlelo olukhulu alusho ukuthi uzokonga imali eyengeziwe. Ungase ufune ukugxila kokuncane nangaphezulu, noma okungcono nakakhulu, tshala ngokuhlakanipha okwengeziwe kusistimu yebhethri ekusebenzelayo, mhlawumbe ngamaphaneli esiqinisekiso angcono noma amaphampu okushisa asebenza kangcono. Umthamo uyinombolo nje, futhi imithetho yokunquma usayizi webhethri lelanga lasekhaya iyashesha futhi kulula, njengoba ngisanda kukubonisa. Kodwa-ke, amapharamitha amabili alandelayo asebenza kakhulu futhi abaluleke kakhulu kulabo abafuna ngempela ukuqonda ukuthi bangawuthola kanjani umkhiqizo osebenza kahle kakhulu. 2. Ukushaja kanye nokukhipha Amandla. Kuzwakala kuxakile, kodwa ibhethri kufanele ishajwe futhi ishajwe, futhi ukuze kwenzeke lokho inebhodlela, isithiyo, futhi lawo amandla alindeleke futhi alawulwa yi-inverter. Uma uhlelo lwami luphakela i-5 kW kugridi, kodwa ibhange lebhethri lelanga lasekhaya lishaja kuphela u-2.5 kW, ngisamosha amandla ngoba u-50% wamandla uyaphakelwa futhi awagcinwa. Uma nje wamiibhethri lelanga lasekhayainamandla ayikho inkinga, kodwa uma ibhethri lami lifile futhi uhlelo lwe-PV lukhiqiza isikhathi esincane kakhulu (ebusika), amandla alahlekile asho imali elahlekile. Ngakho ngithola ama-imeyili avela kubantu abano-10 kW we-PV, 20 kWh webhethri (usayizi ofanele), kodwa isiguquli singakwazi ukuphatha kuphela u-2.5 kW wokushaja. Amandla wokushaja/wokukhipha aphinde athinte isikhathi sokushaja sebhethri lendlu yelanga ngokuqhathaniswa. Uma kufanele ngishaje ibhethri engu-20 kWh enamandla angu-2.5 kW, ngidinga amahora angu-8. Uma esikhundleni sika-2.5 kW, ngishaja ngo-5 kW, kungithatha ingxenye yaleso sikhathi. Ngakho ukhokhela ibhethri elikhulu, kodwa ungase ungakwazi ukulishaja, hhayi ngoba uhlelo alukhiqizi ngokwanele, kodwa ngenxa yokuthi i-inverter ihamba kancane kakhulu. 
Lokhu kuvame ukwenzeka ngemikhiqizo "ehlanganisiwe", ngakho labo enginayo inverter ezinikele ukufanisa imojuli yebhethri, ukucushwa kwayo kuvame ukujabulela lokhu kukhawulelwa kwesakhiwo. Amandla wokushaja/wokukhipha nawo ayisici esibalulekile sokuxhaphaza ngokugcwele ibhethri phakathi nezikhathi zokufunwa kakhulu. Kusebusika, ngo-8pm, futhi indlu ijabule: ama-solar induction panels asebenza ku-2 kW, iphampu yokushisa iphusha i-heater ukuze idonse enye i-2 kW, ifriji, i-TV, amalambu nezinye izinto ezisetshenziswayo zisathatha i-1 kW kuwe. , futhi ubani owaziyo, mhlawumbe unemoto eshajayo kagesi, kodwa ake sikukhiphe lokho kuzibalo okwamanje. Ngokusobala, ngaphansi kwalezi zimo, amandla e-photovoltaic awakhiqizwa, unamabhethri ukushaja, kodwa awukho ngempela "ukuzimela okwesikhashana" ngoba uma indlu yakho idinga i-5 kW nebhethri yelanga lendlu inikeza i-2.5 kW kuphela, lokhu kusho ukuthi i-50% yebhethri amandla osawathatha kugridi futhi uyawakhokhela. Uyayibona indida? Ngenkathi ibhethri lelanga lasendlini lishaja, ugeja isici esibalulekile noma, cishe, umuntu okunikeze ngomkhiqizo ukunikeze isistimu eshibhe kakhulu lapho engenza khona imali eningi ngaphandle kokukunikeza noma yiluphi ulwazi ngakho. Ah, cishe akazazi lezi zinto. Okuxhunywe kumandla wokushaja/wokukhipha ukuvula amabakaki engxoxo yesigaba esi-3/isigaba esisodwa ngoba amanye amabhethri, isibonelo, amabhethri angu-2 BSLATT awakwazi ukufakwa kusistimu yesigaba esisodwa ngenxa yokuthi amandla amabili aphumayo ayahlanganisa (10+10). =10) ukufinyelela amandla adingekayo ezigabeni ezintathu, kodwa sizoxoxa ngalokho kwesinye isihloko. Manje ake sikhulume ngepharamitha yesithathu okufanele icatshangelwe lapho ukhetha ibhethri lasendlini: uhlobo lwebhethri. 3. Uhlobo Lwebhethri Yelanga Lasekhaya. Qaphela ukuthi le pharamitha yesithathu “ingokuvamile” kakhulu kokuthathu kwethulwa, njengoba iqukethe izici eziningi okufanele zicatshangelwe, kodwa ingeyesibili kumapharamitha amabili okuqala asanda kwethulwa. Ukuhlukaniswa kwethu kokuqala kobuchwepheshe bokugcina kusendaweni yayo ekhuphukayo. I-AC-alternating noma i-DC-continuous. Isifinyezo esincane esiyisisekelo. ● Iphaneli yebhethri ikhiqiza amandla e-DC ● Umsebenzi we-inverter yesistimu ukuguqula amandla akhiqiziwe kusuka ku-DC kuya ku-AC, ngokuvumelana nemingcele yegridi echaziwe, ngakho-ke uhlelo lwesigaba esisodwa luyi-230V, 50/60 Hz. ● Le ngxoxo iyasebenza, ngakho-ke sinephesenti elincane noma elincane lokuvuza, okungukuthi “ukulahlekelwa” kwamandla, esimweni sethu sithatha ukusebenza kahle okungama-98%. ● Ibhethri lelanga lishaja ngamandla e-DC, hhayi i-AC. Ingabe konke lokho kucacile? Kahle... Uma ibhethri isehlangothini lwe-DC, khona-ke ku-DC, i-inverter izoba nomsebenzi wokuguqula amandla wangempela akhiqizwa futhi asetshenziswe, ukudlulisa amandla aqhubekayo esistimu ngqo ebhethri - akukho ukuguqulwa okudingekayo. Ngakolunye uhlangothi, uma ibhethri lelanga lendlu lisohlangothini lwe-AC, sinezikhathi ezingu-3 inani lokuguqulwa kune-inverter. ● Ama-98% okuqala ukusuka esitshalweni kuya kugridi ● Ukushaja kwesibili kusuka ku-AC kuya ku-DC kunikeza ukusebenza kahle kwama-96%. ● Ukuguqulwa kwesithathu kusuka ku-DC kuya ku-AC ukuze kukhishwe, okuholela ekusebenzeni kahle okuphelele kwe-94% (kuthatha ukusebenza kahle kwe-inverter okungaguquki okungu-98% futhi kungacabangeli ukulahlekelwa ngesikhathi sokushaja nokukhipha, kunoma yikuphi). Leli su, elamukelwa isitoreji esiningi kanye ne-Tesla, liholela ekulahlekelweni kwe-4% uma kuqhathaniswa namanye amacala. Manje kubalulekile ukuveza ukuthi ukuphambana kwalobu buchwepheshe obubili ngokuyinhloko kuyisinqumo sokufaka ibhange lebhethri lelanga lasekhaya ngenkathi kwakhiwa uhlelo lwe-PV, njengoba izici ze-AC zisetshenziswa kakhulu lapho kulungiswa kabusha, okungukuthi ukufaka ibhange lebhethri lelanga lasekhaya ohlelweni olukhona. , njengoba zingadingi izinguquko ezibalulekile ohlelweni lwe-PV. Esinye isici okufanele sicatshangelwe uma kuziwa ohlotsheni lwebhethri ikhemistri ekwisitoreji. Kungakhathaliseki ukuthi i-LiFePo4 (LFP), i-Li-ion ehlanzekile, i-NMC, njll., inkampani ngayinye inamalungelo obunikazi ayo, isu layo. Yini okufanele siyibheke? Iyiphi ongakhetha? Kulula: inkampani ngayinye yamaseli elanga itshala izigidi ocwaningweni namalungelo obunikazi ngomgomo olula wokuthola ibhalansi engcono kakhulu phakathi kwezindleko, ukusebenza kahle nesiqiniseko. Uma kuziwa kumabhethri, lokhu kungenye yezici ezibaluleke kakhulu: isiqinisekiso sokuqina nokusebenza komthamo wokugcina. Ngakho-ke isiqinisekiso siba ipharamitha yengozi “yobuchwepheshe” obusetshenzisiwe. Ibhethri lelanga Lasekhaya liyisisetshenziswa, njengoba sishilo, esisebenzela ukusebenzisa kangcono isistimu ye-photovoltaic kanye nokwenza ukonga ekhaya. Uma ufuna ukuba ne-investimenti ngaphandle kokuzisola, kufanele uye kochwepheshe abakhulu nabaqeqeshwe kahle kanye nezinkampani ozozithenga.ibhange lebhethri lelanga lasekhaya. Ungakugwema kanjani ukwenza amaphutha lapho uthenga futhi uthenga amabhethri elanga lasekhaya? Kulula, phendukela kumuntu oqeqeshiwe nonolwazi noma inkampani ngokushesha,I-BSLBATTibeka ikhasimende enkabeni yephrojekthi, hhayi izintshisekelo zalo siqu. Uma udinga ukusekelwa okwengeziwe, i-BSLBATT ineqembu elingcono kakhulu lonjiniyela bezentengiselwano futhi izoba onakho ukukuqondisa ekukhetheni ibhethri lasekhaya elifaneleka kakhulu lelanga lesistimu yakho ye-PV.
Isikhathi sokuthumela: May-08-2024