Iindlela ezintathu zokumisela amandla elanga + ukugcinwa kwamandla

Ngelixa igama elithi "solar+storage" lihlala libhekiswa kwizangqa zamandla, ingqwalasela encinci ihlawulwe kuhlobo logcino lwelanga+ ekubhekiswa kulo. Ngokubanzi, inokuqwalasela ukugcinwa kwamandla elanga + ngeendlela ezintathu ezinokwenzeka:

• I-Standalone AC-dityaniswe nelanga + ugcino lwamandla: Isixokelelwano sogcino lwamandla sibekwe kwindawo eyahlukileyo kwindawo yombane welanga. Olu hlobo lokufakela ngokuqhelekileyo lusebenza kwiindawo ezinobunzima bomthamo.

• Iinkqubo ezidityanisiweyo ze-AC-ezidityanisiweyo zesola+ezidityanisiweyo+ zogcino: Indawo yokuvelisa umbane welanga kunye nenkqubo yokugcina amandla zibekwe kunye kwaye zabelane ngendawo enye yoqhagamshelo nothungelwano lwegridi okanye zineendawo ezimbini zoqhagamshelo ezizimeleyo. Nangona kunjalo, inkqubo yokuvelisa amandla elanga kunye nenkqubo yokugcina amandla ixhunyiwe kwi-inverter eyahlukileyo. Indawo yokugcina amandla ibekwe ecaleni kwenkqubo yokuvelisa amandla elanga. Bangakwazi ukuthumela amandla kunye okanye ngokuzimeleyo.

• Indawo edibeneyo ye-DC-coupled solar + system yokugcina amandla: Indawo yokuvelisa umbane welanga kunye nenkqubo yokugcina amandla zibekwe kunye. Kwaye wabelane ngoqhagamshelwano olufanayo. Kwakhona, ziqhagamshelwe kwibhasi enye ye-DC kwaye zisebenzisa i-inverter efanayo. Zingasetyenziswa njengesixhobo esinye.

Izibonelelo zokubeka iinkqubo zokugcina amandla ngokuzimeleyo.

Iinkqubo zokuvelisa amandla elanga kunye neenkqubo zokugcina amandla akufuneki zibekwe ndawonye ukuze kuzuzwe inzuzo efanayo. Kungakhathaliseki ukuba zibekwe phi kwigridi, iindawo zokugcina amandla ezizimeleyo zinokubonelela ngeenkonzo zegridi kwaye ziphambukise umbane ogqithisileyo ukusuka kuhlaziyo ukuya kumaxesha ombane aphezulu. Ukuba isibonelelo sokuvelisa amandla elanga sikude kwiziko lomthwalo, ulungelelwaniso olufanelekileyo lomzimba lunokuba kukuhambisa inkqubo yokugcinwa kwamandla ezimeleyo kufuphi neziko lomthwalo. Ngokomzekelo, i-Fluence isebenzise inkqubo ye-4 yeyure yokugcina ibhetri kunye nomthamo ofakwe kwi-30MW kufuphi neSan Diego ukuqinisekisa ukuthembeka kwendawo kunye nokwandisa ukusetyenziswa kwamandla avuselelekayo. Izinto eziluncedo kunye nabaphuhlisi kufuneka bagxininise ekusetyenzisweni kweenkqubo zokugcina amandla ezinokuthi okanye zingabikho kunye neenkqubo zamandla elanga, ukuba nje zinenzuzo ephezulu.

Izinto eziluncedo zelanga + ugcino lwamandla kunye nokuhanjiswa kwendawo

Kwiimeko ezininzi, indawo yogcino yelanga + ineengenelo ezintle kakhulu. Ngokudityaniswa kwendawo edibeneyo, indawo yokugcina ilanga + inokulinganisa iindleko zeprojekthi, kubandakanya umhlaba, abasebenzi, ulawulo lweprojekthi, imvume, uqhagamshelo, ukusebenza, kunye nokugcinwa. E-US, abanini beeprojekthi banokufaka ibango leekhredithi zerhafu yotyalo-mali kwiindleko ezininzi zokugcina imali ukuba banoxanduva lokukhanya kwelanga.

Indawo yogcino lwelanga + edibeneyo yokubekwa kwindawo inokuba yi-AC zidityanisiwe, apho inkqubo yokugcina amandla kunye nenkqubo yokuvelisa amandla elanga zidibene kodwa azabelani ngee-inverters. Inokusebenzisa inkqubo yokudibanisa ye-DC. Inkqubo yokuvelisa amandla elanga kunye nenkqubo yokugcina amandla idityaniswe kwicala le-DC le-inverter ekwabelwana ngayo, kwaye iindleko zeprojekthi zingabelana kwaye zilungelelaniswe. Ngokophononongo olwenziwa yi-NREL, ngo-2020, Kuya kunciphisa iindleko zokulinganisa inkqubo nge-30% kunye ne-40% ye-co-located AC-coupled and DC-coupled solar + Storage, ngokulandelanayo.

Ukuthelekiswa kwe-DC-dityanisiwe okanye i-AC-idityanisiwe

Xa uvavanya inkqubo ye-DC-coupled solar+storage, ezinye izinto eziphambili kufuneka ziqwalaselwe. Ezona zinto ziluncedo kwiDC ezidityaniswe nelanga + iinkqubo zokugcina amandla zezi:

• Ukuthotywa kweendleko zesixhobo ngokunciphisa iindleko zokusasazwa kwee-inverters, isixhobo sokutshintsha amandla ombane aphakathi, kunye nezinye izixhobo.

• Ivumela isixokelelwano samandla elanga ukuba sibambe amandla elanga adla ngokulahleka okanye acuthwe xa umlinganiselo womthwalo we-inverter mkhulu kuno-1, uvelisa ingeniso eyongezelelweyo.

• Inokudibanisa i-solar + yokugcina amandla kwisivumelwano sokuthenga umbane omnye (PPA).

Izinto ezingeloncedo nge-DC ezidityaniswe nelanga + iinkqubo zokugcina amandla zezi:

Xa kuthelekiswa neenkqubo ze-AC ezidityanisiweyo ze-solar-plus-storage, iinkqubo ze-DC-zidibene ne-solar-plus-storage zine-flexibility encinci yokusebenza ngenxa yokuba zilinganiselwe ngumthamo we-inverter xa umthamo wokudibanisa ukhulu kakhulu. Umzekelo, ukuba umphuhlisi welanga ulindele imfuno ephezulu ngexesha leeyure zokuvelisa i-solar ephezulu, isenokungakwazi ukuhlawulisa iibhetri ngaxeshanye. Ngelixa oku kujongeka phantsi, akuyongxaki enkulu kwiimarike ezininzi.

Abangaphakathi kwimizi-mveliso bakholelwa ukuba iDC edityaniswe nelanga + inkqubo yokugcina amandla yeyona ndlela ilungileyo yokumisela. Inokubonelela ngokuzinzile kokuveliswa kwamandla elanga ixesha elide, njengeeyure ze-4-6, ukubamba ukusika amandla elanga. Ngenxa ye-inverter ekwabelwana ngayo, Isixhobo sinciphisa iindleko zokuvelisa umbane. Ukuhanjiswa kwe-DC-kudityaniswe nelanga kunye nokugcinwa kulindeleke ukuba kwande kule minyaka imbalwa izayo njengoko uninzi lwabasebenzisi begridi bejongene negophe eliya lisiba qatha.