Kungani isixazululo sokuhlinzekwa kwamandla ekamu sibalulekile?
Kudingeka ugesi ozinzile ngaphandle kwegridi ezindaweni ezikude zezimayini, ezindaweni zokwakha umgwaqo onguthelawayeka nezindawo zokungcebeleka eziqhingini.
Kukhona izindlela ezimbili zobuchwepheshe ezivamile okwamanje: ukwakhiwa kwegridi ngamajeneretha edizili kanye nokwakhiwa kwegridi ngamasistimu okugcina amandla e-PV-energy.
Lesi sihloko siqhathanisa izixazululo ezimbili ezivela kubukhulu obune: umzila wezobuchwepheshe, izimo ezisebenzayo, izindleko nokuzinza.
Ukwakhiwa Kwegridi NgeGeneretha Yedizili
Umzila Wezobuchwepheshe: Ijeneretha yedizili ene-AVR voltage regulation, yamukela ukwesekwa kwamandla kagesi.
Izimo Ezisebenzayo: Amakamu esikhashana anobude besikhathi sokwakha ngaphansi kwezinyanga eziyisi-6, amasayithi anokukhanya kwelanga okunganele, noma amaphrojekthi adinga amandla asheshayo okukhanyisa.
Ukuhlaziywa Kwezindleko: Izindleko zokuqala eziphansi zokuthenga (30kW iyunithi: cishe. $4,434‑7,390). Izindleko zokusebenza zonyaka zokukhiqiza udizili zilinganiselwa ku-$65,000 (uphethiloli wedizili + nokugcinwa). Ukuthuthwa kukaphethiloli kunzima ezindaweni eziqhelile, okungase kuholele kalula ekusweleni uphethiloli.
Ukuzinza: Ngesixazululo sejeneretha kadizili: ukushintshashintsha kwamandla kagesi ≤ ±5%, ukushintshashintsha kwefrikhwensi ≤ ±0.2Hz. Isikhathi sokuphendula esinensayo (5‑6s), umthamo obuthakathaka wokumelana ne-inrush yamanje (izikhathi ezi-3‑5 zomthwalo) phakathi nokuqaliswa kwemoto. Umsebenzi we-Black-start awutholakali ngemva kokucisha kwegridi yamandla.
Ukwakhiwa Kwegridi Ngohlelo Lokugcina Amandla we-PV
Umzila Wezobuchwepheshe: Ibhethri ye-Photovoltaic + i-lithium-iron-phosphate + i-off-grid PV inverter + microgrid energy management system (EMS). Ijeneretha yedizili isetshenziswa kuphela njengomthombo wamandla oyisipele.
Izimo Ezisebenzayo: Amakamu esikhathi eside anesikhathi sokusebenza esingaphezu konyaka ongu-1, ukusetshenziswa kwamandla kwansuku zonke okungaphezu kuka-300kWh, amasayithi anokukhanya kwelanga okwanele, noma amaphrojekthi angaphansi kwezidingo zokuhlola ukukhishwa kwekhabhoni.
Ukuhlaziywa Kwezindleko: Ukutshalwa kwezimali kokuqala okuphezulu (20kW PV + 167kWh isitoreji samandla: cishe. $52,000‑74,000); izindleko zokusebenza ngonyaka $35,000. Izindleko ezilinganisiwe zamandla ngu-$0.11‑0.16/kWh kuphela.
Uma kuhlanganisa ukusetshenziswa kukadizili ezimeni eziphuthumayo, izindleko zonyaka zilinganiselwa ku-$6,207, okumele ukuncipha kwezindleko ngo-90.1%. Isikhathi sokukhokha ngokuvamile siyiminyaka emi-3-5.
Ukuzinza: Okwesixazululo se-PV‑energy‑yesitoreji: ukushintshashintsha kwamandla kagesi ≤ ±3%, ukushintshashintsha kwemvamisa ≤ ±0.1Hz; isikhathi sokushintsha imithombo eminingi ≤10ms. Iletha impendulo esheshayo, ukunemba okuphezulu kokulawula kanye nekhwalithi ephezulu yokunikeza amandla.
Izincomo Zokukhetha
Izindleko eziphelele ngaphezu komjikelezo wempilo egcwele engu-5: cishe. $350,000 yesixazululo sejeneretha kadizili; cishe. U-$97,000 wesixazululo se-PV-energy-storage, esinokwehliswa kwezindleko eziphelele ngo-74.2% kunketho ye-PV-energy-energy.
Isabelomali esiqinile, ubude besikhathi bephrojekthi, ukukhanya kwelanga okunganele: Khetha igridi eyakhiwe ngejeneretha kadizili.
Phishekela ukonga izindleko zesikhathi eside, gcizelela ukuvikelwa kwemvelo, ukukhanya kwelanga okwanele: Khetha igridi eyakhelwe i-PV‑energy-storage-form.
Isixazululo esilungile: Sebenzisa imodi yegridi encane ye-“PV-energy-storage-diesel”. Amandla ahlinzekwa yi-PV ngezinsuku ezinelanga, isitoreji samandla ngezinsuku eziguqubele, futhi ijeneretha kadizili ivulwa ngaphansi kwezimo zezulu ezimbi kakhulu.
Udinga ikhambi elenziwe ngokwezifiso lokunikezela kwamandla?
I-Xuzhou Zm-Besta ihlinzeka ngamakhabethe esitoreji esihlanganisiwe sohlobo lwe-PV‑energy-energy.
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