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Ukuthenga Intambo yoLwandiso lwePvIifektri zaphesheya zinokunciphisa iindleko zokulinganisela inkqubo, kodwa ukonga kuxhomekeke kokungaphezulu kokuthelekisa amaxabiso eyunithi. Ukuguquguquka kwezinto, iinkcukacha zekhebula, iimfuno zesatifikethi, ubungakanani obuncinci beodolo, izinto ezisetyenziswayo, imisebenzi, kunye nolawulo lomgangatho womthengisi konke kubumba ixabiso lokwenyani lomhlaba kunye nexabiso leprojekthi yexesha elide. Eli nqaku lichaza apho abaqhubi beendleko ezinkulu bahlala khona, indlela amaqela okuthenga anokuziphepha ngayo iindleko ezifihlakeleyo, kunye namaqhinga okufumana anceda ukukhusela zombini iimali kunye nokusebenza. Ekugqibeleni, abafundi baya kuba nesakhelo esisebenzayo sokuvavanya ababoneleli baphesheya, ukuxoxisana ngempumelelo ngakumbi, kunye nokunciphisa iindleko zekhebula ngaphandle kokunyusa umngcipheko wobugcisa okanye wokuthobela umthetho.
Ukufuna iintambo zokwandisa i-PV kungayiphucula njani imida yeprojekthi
Ukufumana iintambo zolwandiso lwe-photovoltaic (PV) ezivela kubavelisi bamanye amazwe kunika indlela ethe ngqo yokuphucula umda weeprojekthi zelanga ezisetyenziswayo kunye nezentengiso. Njengoko ukukhula okukhulu kokufakelwa kwelanga kwihlabathi liphela kuqhuba imfuno yebhalansi yezixhobo zenkqubo (BOS) ezonga iindleko, amaqela okuthenga aya ejonga ngaphaya kwababoneleli basekhaya. Ngokusebenzisa iindawo zokuvelisa zehlabathi, abaphuhlisi banokunciphisa kakhulu iindleko zemali ngaphandle kokubeka emngciphekweni ukuthembeka kwenkqubo okanye isivuno samandla.
Zeziphi iimoto ezixabisa kakhulu ezibaluleke kakhulu
Ukuqonda izinto eziphambili zemali kubalulekile kulo naliphi na icebo elijoliswe kulo ukufumana iintambo zokwandisa i-PV zonga iindlekoIindleko zezinto eziluhlaza zilawula iprofayili yokuvelisa, apho ubhedu olucociweyo oluphezulu lubalelwa kwi-60% ukuya kwi-70% yexabiso lilonke leyunithi. Ukuguquguquka kwesalathisi sobhedu saseLondon Metal Exchange (LME) kuchaphazela ngokuthe ngqo iimodeli zamaxabiso efektri. Ukongeza, ukhetho lwezinto zokufaka ubushushu kunye nezinto zokugquma, eziqhele ukudityaniswa ne-polyethylene (XLPE) okanye iipolymers ezikhethekileyo, zichaphazela ukuqina kunye nexabiso elisisiseko. Ixabiso elingaphezulu kwefektri, i-arbitrage yabasebenzi kwiindawo zokuvelisa zaphesheya, kunye nokusebenza kakuhle kwemveliso zenza izinto ezisele eziguquguqukayo zeendleko. Ngokubeka ixesha lokuthengwa okukhulu ngexesha lokwehla kwemarike yobhedu, abathengi banokufumana izibonelelo ezinkulu zemali.
Abathengi bafanele bazichaze njani ngokucacileyo iimfuno
Ukuchaneka kwiinkcukacha zobugcisa ithintela ubunjineli obugqithisileyo obubiza kakhulu kwaye isusa umngcipheko wezinto ezingasebenzi kakuhle. Abathengi kufuneka bachaze iindawo ezinqamlezileyo ngokusekwe kwiimfuno ezichanekileyo ze-amperage yenkqubo; umzekelo, ukucacisa i-4mm² (12 AWG) endaweni yokusilela ukuya kwi-6mm² (10 AWG) xa ikhuselekile kwaye ihambelana nemithetho kunokubonelela ngoko nangoko ngokulondolozwa kwezinto ezininzi ze-15% ukuya kwi-20%.
Ngaphezu koko, amaqela okuthenga afanele achaze ngokucacileyo ukunyamezelana kokusingqongileyo, okufana nokuxhathisa i-UV, imiqobo yokufuma, kunye nobushushu bokusebenza obuphakathi kwe--40°C ukuya kwi-+120°C. Iifektri zaphesheya zidla ngokufuna ubuNcinci be-Order Quantities (MOQs) obuqala phakathi kwe-5,000 kunye ne-10,000 yeemitha kwimibala yejakethi eyenziwe ngokwezifiso, izihlanganisi ezikhethekileyo, okanye ubude obuthile obunqunyiweyo. Ukuchaza ezi parameters kwangaphambili kunciphisa imijikelo yokuhlaziya kwaye kukhawulezise amaxesha emveliso.
Yintoni abathengi abafanele bayithelekise xa bekhetha ababoneleli
Ukukhetha iqabane elifanelekileyo lokuvelisa kufuna uvavanyo olucokisekileyo lwezakhono zomzi-mveliso, iinkqubo zokulawula umgangatho, kunye nokuthotyelwa kwemithetho. Uthelekiso olucwangcisiweyo luqinisekisa ukuba ukonga kwangaphambili akupheliswa kukusilela kwenxalenye ngaphambi kwexesha, iingozi zokhuseleko, okanye izohlwayo zokuthobela umthetho ngexesha lokudibana kwegridi.
Zeziphi iindlela ezixhasa ukukhethwa kwefektri
Uhlolo olusebenzayo lwefektri lufanele lubeke phambili amandla emveliso, amanqanaba oomatshini, kunye neenkqubo zolawulo lomgangatho ezimiselweyo. Abathengi kufuneka baqinisekise iziqinisekiso ze-ISO 9001 kwaye bavavanye iziseko zovavanyo zomenzi, kubandakanya ii-ovens ezigugayo zangaphakathi, amagumbi ovavanyo oluphezulu, kunye nezixhobo ezigobileyo. Ukwenziwa kwe-extrusion okuphucukileyo kunciphisa iimpazamo zomntu, kuqinisekisa ubukhulu bokugquma obuhambelanayo kuyo yonke imisebenzi emikhulu yemveliso.
Umthengisi othembekileyo wenqanaba lokuqala kufuneka abonise izinga leziphene zembali ezigcinwe zingaphantsi kwe-0.1% (1,000 PPM). Ukongeza, ukuvavanya inethiwekhi yokufumana izinto eziluhlaza yomzi-mveliso kunika ulwazi malunga nokukwazi kwayo ukufunxa ukuqhawuka kwekhonkco lokubonelela, ukugcina iishedyuli zokuhanjiswa rhoqo, kunye nokuphepha ukufaka izinyithi eziphantsi endaweni yazo ngexesha lokunyuka kwamaxabiso obhedu.
Ukuhambelana nomthetho, iingxelo zovavanyo, kunye nokusebenza komjikelo wobomi zithelekiswa njani
Ukufakelwa kwelanga kufuna ukuthotyelwa ngokungqongqo kwimigangatho yamazwe ngamazwe ukuqinisekisa ukhuseleko kunye nobude bexesha. Abavelisi kufuneka banike iingxelo zovavanyo ezinokuqinisekiswa ezivela kwimibutho ezimeleyo eyaziwayo njenge-TÜV Rheinland okanye i-Underwriters Laboratories (UL).
| Umgangatho | Uvavanyo lweVoltage | Ubushushu obukhulu bomqhubi | Ixesha eliqhelekileyo lobomi | Imarike Eyintloko |
|---|---|---|---|---|
| I-EN 50618 (H1Z2Z2-K) | 1500V I-DC | 120°C (iiyure ezingama-20,000) | Iminyaka engama-25 | IYurophu / Ihlabathi liphela |
| UL 4703 (Ucingo lwePV) | 1000V / 2000V DC | 90°C / 105°C | Iminyaka engama-25 nangaphezulu | amantla Emelika |
Ukuthelekisa ezi milinganiselo yokuthobela imithetho kuqinisekisa ukuba iintambo ezikhethiweyo ziyahambelana neemfuno zegridi yengingqi kunye neekhowudi zombane zasekuhlaleni. Umzekelo, intambo esemgangathweni ehambelana ne-EN 50618 yenzelwe ukumelana nokuvezwa okuqhubekayo kwe-1500V DC kunye noxinzelelo olukhulu lokusingqongileyo ubuncinane iminyaka engama-25. Ukuqinisekisa ezi milinganiselo yokusebenza komjikelo wobomi kukhusela ngokuthe ngqo iMbuyekezo yoTyalo-mali lwexesha elide (ROI) lwalo lonke uluhlu lwelanga.
Zeziphi iindlela zokufumana kunye nezicwangciso zothutho ezinciphisa iindleko zizonke
Ngaphaya kwexabiso leyunithi yeentambo, ixabiso lilonke elifikelelweyo liphenjelelwa kakhulu ziimpahla zokuthutha, iirhafu zokungenisa impahla, kunye neendlela zokuthethathethana ezicwangcisiweyo. Ukuthengwa okusebenzayo kufuna umbono opheleleyo wekhonkco lokubonelela ukuze kujongwane nobunzima bezorhwebo lwe-geopolitical kunye nokukhusela imida yenzuzo yeprojekthi.
Abathengi bangazinciphisa njani iindleko zomhlaba ngokuthethathethana
Ukuphucula uthutho lwempahla kubalulekile kwimpahla ezinkulu nezinzima ezifana neentambo zobhedu. Abathengi banokunciphisa iindleko zomhlaba ngokuthetha-thethana nge-Incoterms ezilungileyo, ezifana ne-Free on Board (FOB) endaweni ye-Ex Works (EXW), ngokutshintshisela ngempumelelo iindleko zokuphatha kunye nokulayisha i-origin-port kumthengisi. Ukudibanisa ukuthunyelwa kwi-Full Container Loads (FCL) kunciphisa kakhulu iindleko zokuthutha ngeyunithi nganye.
Ngokomxholo, ukuthunyelwa kwesikhongozeli esiqhelekileyo esingangeenyawo ezingama-20—esigcina ngokukhuselekileyo malunga neemitha ezingama-300,000 zentambo ye-PV eqhelekileyo ye-4mm² kwiispools zomthi—ngokuthunyelwa kolwandle kunokunciphisa iindleko zokuthutha ngemitha nganye ukuya kuthi ga kwi-40% xa kuthelekiswa nokuthunyelwa kwe-Less than Container Load (LCL) okanye ukuthunyelwa kweenqwelo-moya okukhawulezileyo. Ukuhlelwa kwerhafu yesicwangciso kunye nokusebenzisa izivumelwano zorhwebo olukhululekileyo ezifanelekileyo kunciphisa iirhafu zerhafu ezingalindelekanga kwizibuko eliya kulo.
Yeyiphi indlela yokugqiba izigqibo ekufuneka isetyenziswe ngamaqela okuthenga
Amaqela okuthenga kufuneka amkele inkqubo Isakhelo seendleko ezipheleleyo zobunini (i-TCO) endaweni yokuvavanya iibhidi zefektri kuphela kwixabiso eliphantsi leyunithi yokuqala. Le modeli ibanzi ichaphazela iindleko zokuthenga, ukuthutha ulwandle, uthutho lwangaphakathi, irhafu yokungenisa impahla, amazinga eempazamo zembali, kunye neendleko zebango lewaranti ezinokubakho.
Abenzi bezigqibo kufuneka baqwalasele ngononophelo amaxesha okukhokela imveliso, adla ngokuba ziiveki ezi-3 ukuya kwezi-5 kwizibonelelo zaphesheya ezinomthamo omkhulu, kunye neeveki ezi-4 ukuya kwezi-6 ezongezelelweyo zokuthutha olwandle kunye nokususwa kwerhafu. Ukudibanisa isibonelelo sesitokhwe esicwangcisiweyo ngaphakathi kwesi sikhokelo se-TCO kunciphisa ukuphazamiseka kwekhonkco lokubonelela, kuqinisekisa ukuba iishedyuli zokufakelwa kweprojekthi ezihambelanayo kakhulu aziphazanyiswa ziingxaki ezingalindelekanga zothutho.
Izinto ezibalulekileyo ekufuneka ziqwalaselwe
- Ezona zigqibo zibalulekileyo kunye nesizathu sokufumana iintambo zolwandiso lwe-PV zigcina iindleko
- Iinkcukacha, ukuthobela imithetho, kunye nokuhlolwa komngcipheko okufuneka kuqinisekiswe ngaphambi kokuba uzibophelele
- Amanyathelo alandelayo asebenzayo kunye nezilumkiso abafundi abanokuzisebenzisa ngoko nangoko
Imibuzo ebuzwa qho
Yintoni egcina imali eninzi xa uthenga iintambo zokwandisa i-PV phesheya?
Gxila kubungakanani bomqhubi, ixesha lekopolo, kunye neendleko zokufika. Ukulinganisa i-4mm² endaweni yokuchaza ngaphezulu i-6mm² kunokunciphisa iindleko zezinto nge-15%–20% xa iimfuno zenkqubo zivuma.
Abathengi banokukuphepha njani ukuhlawulela iinkcukacha zekhebula ezingeyomfuneko?
Nika ubungakanani obuchanekileyo befektri, i-voltage, ubushushu, ukuvezwa kwe-UV, uhlobo lwesixhobo sokudibanisa, kunye nobude bokusika. Iinkcukacha ezicacileyo zinciphisa uyilo olutsha, zithintela ubunjineli obugqithisileyo, kwaye zikhawulezisa imveliso.
Yeyiphi imboni ejonga izinto ezibalulekileyo ngaphambi kokuba ufake i-odolo yentambo ye-PV eninzi?
Qinisekisa i-ISO 9001, amandla okuvavanya ngaphakathi, inqanaba lokuzenzekelayo, kunye nezinga lesiphene elingaphantsi kwe-0.1%. Cela iirekhodi zophicotho-zincwadi zamva nje kunye nedatha yovavanyo lwesampulu ngaphambi kokuba uvume imveliso.
Kutheni iingxelo zovavanyo lwe-TÜV okanye lwe-UL zibalulekile kwiintambo zolwandiso lwe-PV?
Baqinisekisa ukuba intambo iyahlangabezana nemigangatho efunekayo efana ne-EN 50618 okanye i-UL 4703. Oku kunceda ukunqanda iingxaki zokuthobela imithetho, ukuvavanywa okungaphumeleli, kunye neendleko zokutshintshwa kwangaphambi kwexesha.
Icebo lokuthumela lingazinciphisa njani iindleko zokufumana iintambo phesheya?
Thelekisa iindleko ezipheleleyo zokufika emhlabeni, hayi ixabiso leyunithi kuphela. Hlanganisa ii-odolo, qinisekisa i-Incoterms kwangethuba, kwaye ucwangcise imiqathango ye-MOQ ukuze wehlise iindleko zokuthutha impahla, irhafu, kunye nokuthunyelwa ngokukhawuleza.