Izindlela ezintathu zokumisa zamandla elanga + isitoreji samandla

Nakuba igama elithi "solar+storage" livame ukubhekiselwa kulo emibuthanweni yamandla, kuncane ukunaka okukhokhiwe ukuthi hlobo luni lwesitoreji selanga+ okubhekiselwa kulo. Ngokuvamile, Ingakwazi ukumisa isitoreji selanga + samandla ngezindlela ezintathu ezingenzeka:

• I-Standalone AC-coupled solar + isitoreji samandla: Isistimu yokugcina amandla itholakala endaweni ehlukile kunesikhungo samandla elanga. Lolu hlobo lokufaka luvamise ukusebenzisa izindawo ezivimbelwe umthamo.

• Amasistimu okugcina elanga+ ahlanganiswe ne-AC ahlanganiswe ndawonye: Indawo yokuphehla amandla elanga kanye nesistimu yokugcina amandla kusendaweni eyodwa futhi yabelana ngendawo eyodwa yokuxhuma negridi noma inezindawo ezimbili zokuxhuma ezizimele. Kodwa-ke, uhlelo lokukhiqiza amandla elanga kanye nesistimu yokugcina amandla ixhunywe ku-inverter ehlukile. Indawo yokugcina amandla itholakala eduze kwesistimu yokuphehla amandla elanga. Bangakwazi ukuthumela amandla ndawonye noma ngokuzimela.

• Isistimu yokulondoloza amandla elanga + ehlanganisiwe ye-DC: Indawo yokuphehla amandla elanga kanye nesistimu yokugcina amandla kuhlanganiswe ndawonye. Futhi wabelane ngokuxhumeka okufanayo. Futhi, axhumeke ebhasini elifanayo le-DC futhi asebenzisa inverter efanayo. Zingasetshenziswa njengendawo eyodwa.

Izinzuzo zokusebenzisa amasistimu okugcina amandla ngokuzimela.

Amasistimu okukhiqiza amandla elanga nezinhlelo zokugcina amandla akudingekile ukuba abekwe ndawonye ukuze kuzuzwe izinzuzo ezifanayo. Kungakhathaliseki ukuthi zikuphi kugridi, izikhungo ezizimele zodwa zokugcina amandla zingahlinzeka ngamasevisi egridi futhi zichezukise amandla engeziwe kusukela kokuvuselelwa kabusha ukuya ezikhathini zamandla aphezulu kakhulu kusihlwa. Uma insiza yokuphehla amandla elanga ikude nesikhungo somthwalo, ukulungiselelwa okuphelele komzimba kungase kube ukuhambisa uhlelo oluzimele lokugcina amandla eduze kwesikhungo somthwalo. Isibonelo, u-Fluence usebenzise isistimu yokugcina ibhethri yamahora angu-4 enamandla afakiwe angu-30MW eduze kwase-San Diego ukuze kuqinisekiswe ukwethembeka kwendawo nokwandisa ukusetshenziswa kwamandla avuselelekayo. Izinsiza nabathuthukisi kufanele bagxile ekukhipheni amasistimu okugcina amandla okungenzeka noma angabi khona ndawonye namasistimu kagesi welanga, inqobo nje uma enenzuzo ephezulu kakhulu.

Izinzuzo zokuphakelwa kwendawo yokugcina amandla elanga + nesitoreji samandla

Ezimweni eziningi, indawo ye-solar + Storage inezinzuzo ezinhle kakhulu. Ngokusatshalaliswa kwendawo okuhlanganyelwe, i-solar+storage ingabhalansisa izindleko zephrojekthi, okuhlanganisa umhlaba, abasebenzi, ukuphathwa kwephrojekthi, izimvume, ukuxhumana, ukusebenza, nokugcinwa. E-US, abanikazi bephrojekthi bangaphinda bafune amakhredithi entela yokutshala imali yezindleko ezinkulu zesitoreji uma bebophezelekile ekuthengeni ilanga.

I-solar+storage co-location deployment ingaba yi-AC kuhlanganiswe, lapho isistimu yokugcina amandla kanye nesistimu yokuphehla amandla elanga kuhlangene kodwa awabelani ngama-inverters. Ingasebenzisa nohlelo lokuhlanganisa lwe-DC. Uhlelo lokuphehla amandla elanga kanye nesistimu yokugcina amandla kuhlanganiswe ohlangothini lwe-DC lwe-inverter ephindwe kabili eyabiwe, futhi izindleko zephrojekthi zingabiwa futhi zilinganiswe. Ngokocwaningo olwenziwa yi-NREL, ngo-2020, Izokwehlisa izindleko zokulinganisa uhlelo ngo-30% no-40% wesitoreji esihlanganisiwe se-AC-coupled kanye ne-DC-coupled solar+, ngokulandelana.

Ukuqhathaniswa kokuphakelwa kwe-DC okuhlanganisiwe noma kwe-AC

Lapho uhlola isistimu yesitoreji ye-solar+ehlanganiswe ne-DC, izici ezithile ezibalulekile okufanele zicatshangelwe. Izinzuzo eziyinhloko ze-DC ezihlanganiswe ne-solar + izinhlelo zokugcina amandla yilezi:

• Ukunciphisa izindleko zemishini ngokunciphisa izindleko zokuphakela ama-inverters, ama-switchgear aphakathi nendawo, nezinye izinsiza.

• Ivumela isistimu yamandla elanga ukuthi ithwebule amandla elanga ngokuvamile alahleka noma ancishisiwe lapho isici somthwalo we-inverter sisikhulu kuno-1, okukhiqiza imali eyengeziwe.

• Ingahlanganisa isitoreji selanga + amandla esivumelwaneni esisodwa sokuthenga amandla (i-PPA).

Ububi bezinhlelo zokugcina amandla elanga + ezihlanganiswe ne-DC yilezi:

Uma kuqhathaniswa ne-AC-coupled solar-plus-storage systems, izinhlelo ze-DC-coupled solar-plus-storage zinokuguquguquka okuncane kokusebenza ngoba zinqunyelwe umthamo we-inverter lapho umthamo wokuxhuma mkhulu kakhulu. Isibonelo, uma unjiniyela welanga elindele ukufunwa okuphezulu phakathi namahora okukhiqiza amandla elanga aphezulu, angahle angakwazi ukushaja amabhethri ngesikhathi esisodwa. Nakuba lokhu kungase kube ukwehla, akuyona inkinga enkulu ezimakethe eziningi.

Abangaphakathi kwemboni bakholelwa ukuthi i-DC ehlanganiswe ne-solar + energy storage system iyindlela engcono kakhulu yokucushwa. Inganikeza ukukhiqizwa kwamandla elanga okuzinzile isikhathi eside, njengamahora angu-4-6, ukuze uthwebule amandla elanga asikiwe. Ngenxa ye-inverter eyabiwe, Idivayisi inciphisa izindleko zokuphehla ugesi. Ukuthunyelwa kwe-DC-coupled solar-plus-storage kulindeleke ukuthi kukhule eminyakeni embalwa ezayo njengoba abasebenzisi abaningi begridi bebhekene nejika elikhulayo lamadada.