Singa ssente zo ez’amasannyalaze ag’ettunzi zirimu ekintu eky’omutendera gw’okusasula obwetaavu, okusenya ku ntikko kutera okuba engeri emu esinga okukola obulungi ey’okukkakkanya omuwendo ogwo nga tokyusizza ngeri kifo kyo gye kikola mu butuufu. Okusenya ku ntikko kitegeeza okukuuma obwetaavu bwo obwa giridi wansi w’ekisenge ekitegeerekese mu biseera ebimpi, eby’omugugu omungi-, olwo ssipiki emu embi ereme kuzzaawo ntikko yo ey’okusasula buli mwezi.
Ku mikutu gya C&I egisinga obungi, enkola eno esinga amaanyi si ya njuba yokka. Kiba kya njuba nga kigatta wamu n’okutereka bbaatule emabega-mita ya mita n’ekifuga ekisobola okuddamu mu kiseera ekituufu. Enjuba esobola okusenya ssente z’amasannyalaze, naye si bulijjo nti esala entikko eteekawo omusolo gwo ogw’obwetaavu. Okutereka kukuwa okufuga obudde nga PV array tesobola kuwa ku bwayo.
Lwaki Demand Charges Ziriwo mu Kusooka
Ebitongole ebikozesa amasannyalaze birina okukuuma obusobozi obumala obw’okukola n’emikutu gy’empuliziganya ku mutimbagano okusobola okutuukiriza obwetaavu obusinga obunene obuyinza okubaawo mu mwaka, ne bwe kiba nti entikko eyo ebaawo emirundi mitono gyokka. Okuzimba n’okulabirira obusobozi obwo obw’okutereka kya bbeeyi, era ssente zino zisindikibwa mu misolo gy’ebyobusuubuzi nga ziyita mu musolo gw’obwetaavu.
Ebisale bya C&I ebisinga birina ebitundu bibiri: omusolo gw’amasoboza ogusinziira ku kWh yonna ekozesebwa, n’omusolo gw’obwetaavu ogusinziira ku kW esinga okuggyibwa mu kiseera ky’okusasula-ebiseera ebisinga bipimibwa nga average esinga obunene ey’eddakiika 15. Mu misolo mingi egya Amerika, ssente z’obwetaavu zikola ebitundu 30% ku 70% ku ssente ezisasulwa bakasitoma aba wakati n’abanene, okusinziira ku kunoonyereza okwafulumiziddwa aba...Laboratory y’amasannyalaze agazzibwawo mu ggwanga. Okusiba omulundi gumu mu ddakiika 15 kuyinza okumalawo essaawa ezisukka mu 700 eziddako ng’okola obutakyukakyuka. Oyo ye line item peak shaving ekoleddwa okulumba.
Peak Shaving vs Load Shifting: Lwaki Enjawulo Ekwata
Ebigambo bino ebibiri bikozesebwa kumpi nga bikyusibwakyusibwa mu birimu abatunzi, naye bitunuulira ebitundu by’ebisale eby’enjawulo:
- Okusenya ku ntikkoekendeeza ku kW esinga obunene omukutu gwo gwe gusika okuva ku giridi. Etunuulidde emisolo gy’obwetaavu.
- Okukyusa emiguguekyusa enkozesa ya kWh okuva ku ssaawa ez’ebbeeyi okudda ku za buseere, nga tekikwetaagisa kukendeeza ku ntikko. Etunuulira ebiseera-eby'okukozesa-emiwendo gy'amasoboza. Omulagirizi waffe kuokukyusakyusa omugugu nga waliwo okutereka amaanyikino kibikka mu bujjuvu.
- Okuyiwa emigugukitegeeza okuggyako emigugu. Tekitera kukkirizibwa munda mu nkola y’okufulumya.
Enkola y'okutereka enjuba-plus-ekoleddwa obulungi etera okukola byombi okusenya ku ntikko n'okukyusa omugugu, naye ebikulembeza bikyusa specs za hardware. Bw’oba nga ssente z’obwetaavu ze zisinga okukuluma, sooka ogende sayizi ya bbaatule okusobola okusenya ku ntikko.
Lwaki Solar Yokka Etera Okulemererwa Okusala Ku Demand Charges
Enjuba esobola okukendeeza ku misolo gy’obwetaavu, naye nga okufulumya PV kukwatagana n’akaseera omukutu gwo we gutuukira ddala ku ntikko. Okukwatagana okwo tekukakasibwa, era embeera ssatu eza bulijjo ezikutuka:
- Entikko z’akawungeezi.Ofiisi, eby’amaguzi, eby’okulya, n’ebifo bingi eby’amakolero ebitangaala-bituuka ku ntikko wakati w’essaawa 4 ez’ekiro ne 8 ez’ekiro, ng’ate okufulumya kwa PV kwakendeera dda.
- Enkyukakyuka ezivugibwa ekire-.Ekire ekiyita kisobola okukendeeza ku bungi bwa PV ebitundu 40% okutuuka ku 70% mu ddakiika ezitakka wansi wa emu. Singa spike egwa mu kiseera ky’okunnyika okwo, giridi ekyawandiika entikko enzijuvu.
- Enkola ennyimpi spikes.Chillers cycling on, compressors starting, ne DC fast-charging events zikola narrow current surges PV z’etasobola kuziyiza ku bwayo.
OmuOfiisi y’ekitongole kya Amerika ekikola ku by’amasannyalaze g’enjubaetegedde mu lipoota za pulogulaamu nti PV-kwetaaga kwokka-okukekkereza omusolo kwesigamye nnyo ku kifo- era kulina okukakasibwa okusinziira ku data y'omugugu ogw'ekiseera ekituufu nga tekunnaba kulowoozebwa. Battery tekyetaaga njuba kuba eyaka mu kiseera omugugu gwo we gubuuka-esobola okucaajinga nga bukyali okuva ku PV oba off-peak grid power, olwo n’efulumya ddala nga omukutu gusemberera obwetaavu.
Enjuba-Yokka vs Enjuba + Okutereka okukendeeza ku musolo gw'obwetaavu
| Obusobozi | Enjuba Yokka | Enjuba + Okutereka |
|---|---|---|
| Offset amaanyi agakozesebwa emisana | Obugumu | Obugumu |
| Kendeeza ku ntikko z'akawungeezi oba oluvannyuma-enjuba okugwa | Ekitono ennyo | Obugumu |
| Buffer short load spikes (wansi wa ddakiika 15) . | Obunafu | Obugumu |
| Enkola wansi w’enkyukakyuka y’ebire | Tekyesigika | Yetengerede |
| Okutereka kw’obwetaavu buli mwezi okuteeberezebwa | Omukutu-gwesigamye | Kifugibwa nga kiyita mu EMS |
Engeri Peak Shaving gy'ekola ne Solar ne Battery Storage
Enzirukanya y’emirimu eba nnyangu. Kiddiŋŋana buli lunaku, nga controller alongoosa okusindika okusinziira ku site’s load profile ne tariff structure.
- Okulamula.Battery ecaajinga okuva ku PV surplus emisana, oba okuva ku grid mu ssaawa ezitali -peak nga emiwendo giri wansi.
- Okukebera.Enkola y’okuddukanya amaanyi erondoola obwetaavu bw’ekifo, PV efuluma, embeera ya bbaatule, n’enteekateeka y’emisolo mu kiseera ekituufu.
- Okufulumya.Nga obwetaavu obupimiddwa busemberera silingi eyateekebwawo nga tekunnabaawo, EMS esindika amaanyi ga bbaatule okubikka ekituli.
- Cap.Grid import esigala wansi w'omusingi. Mita y’amasannyalaze ewandiika entikko y’ebisale eya wansi.
Hardware yokka tegenda kutuusa kivaamu kino. Okusenya ku ntikko kizibu kya kufuga nga bwe kiri ekizibu kya bbaatule. EMS erina okusalawo, mu kiseera ekituufu, oba okukulembeza obwetaavu-okuddukanya omusolo, okwe-okukozesa, obudde-bwa-okukozesa arbitrage, oba backup reserve-era ebikulu ebyo bitera okukontana.
Ebikulu Ebitundu mu Enkola y’okusenya ku ntikko
| Ekitundu | Enkola |
|---|---|
| Ensengeka ya PV ey’enjuba | Ekola amaanyi ku-ekifo mu ssaawa z'omusana, eriisa emigugu n'okucaajinga bbaatule |
| Okutereka bbaatule (BESS) . | Atereka amaanyi okufulumizibwa mu biseera by’amadirisa ag’obwetaavu obw’amaanyi; Okugereka kW kwe kusalawo obungi bwa spike bw’esobola okubikka |
| Enkola y’okukyusa amaanyi (PCS) / inverter | Akyusa amaanyi ga bbaatule ya DC okudda mu AC olw’ekifo; bi-directional okusasuza okuva ku grid oba PV |
| Enkola y’okuddukanya amaanyi | Alondoola omugugu, PV, n’embeera ya bbaatule; asalawo ddi lw’okusasula n’okufulumya okusinziira ku mateeka agakwata ku kigero ky’obwetaavu n’emisolo |
| Data y’okupima n’okutambula wakati | Alondoola enkozesa n’obwetaavu mu kusalawo okw’eddakiika 15; eriisa EMS okusalawo ku kusindika |
Polinovel'seby’okutereka eby’obusuubuzi n’amakolerookugatta ebitundu bino mu kabineti ey’ebweru eyakolebwa yinginiya nga tebinnabaawo n’enkola eziteekeddwa mu bidomola ezikoleddwa okukozesebwa mu kusenya ku ntikko.
Nga Peak Shaving Ekola Amakulu Ku Mukutu Gwo
Okusenya ku ntikko kutera okusasula obulungi ng’embeera zino eziwerako zikwata wamu:
- Ebisale by’obwetaavu bikola waakiri ebitundu 25% ku 30% ku ssente z’amasannyalaze z’osasula buli mwezi.
- Data ya mita y’obudde eraga ebiddirira ebiddirira-buli lunaku, buli wiiki, oba enkyukakyuka-eyesigamiziddwa-okusinga ekintu kimu ekitali kya bulijjo ekitali kya bulijjo buli mwaka.
- Entikko evugirwa ebyuma ebimanyiddwa (compressors, chillers, process lines, EV chargers) okusinga okweyisa mu ngeri ey’ekifuulannenge.
- Okufulumya tekuyinza kuddamu kuteekebwateekebwa mangu okusobola okufuuwa entikko.
- Oba oyongerako emigugu emipya egy’amasannyalaze nga fleet EV charging oba ebbugumu erya process ery’amasannyalaze.
Ekibuuzo eky'omugaso ekisooka-okuyita: entikko zo ziteeberezebwa ekimala omufuzi okuddukanya, era za bbeeyi ekimala okufuga okwo okubeera okw'omugaso mu by'ensimbi?
Obunene bwa Battery: Lwaki kW Esinga KWh
Emu ku nsobi ezisinga okuba ez’ebbeeyi mu pulojekiti z’okusenya ku ntikko kwe kulambika bbaatule okusinziira ku maanyi (kWh) n’okubuusa amaaso amaanyi (kW). Okusenya ku ntikko mu bukulu kizibu kya maanyi-weetaaga omuwendo gw’okufulumya ogumala okubikka ku sipiiki, okumala ebbanga lyonna ekisipi lw’ewangaala.
Ensonga entuufu ey’okugerageranya obunene:
- Obugulumivu bwa sipiki bwe busalawo kW.Funa entikko eddirira okuva mu data y’obudde obw’eddakiika 15, ggyako silingi yo gy’ogenderera. Enjawulo eriwo y’amaanyi agasinga obutono agava mu bbaatule.
- Obudde bwa spike bwe busalawo kWh.Kubisaamu kW eyeetaagisa n’obudde obusinga obuwanvu obw’okusiba obutasalako, olwo osseeko ekitereke kya 20%.
- Kebera omuwendo gwa C-.Battery ya kWh 500 ewereddwa 0.5C esobola okutuusa kW 250 zokka. Singa spike yo yeetaaga kW 400, bbaatule eyo eremererwa-ne bw’ekwata amasoboza mmeka.
Okusobola okunnyonnyola enjawulo wakati w’amaanyi n’obusobozi, laba okumenya kwaffe okwa...kW vs kWh.
Ensobi ssatu Ezirumya Peak Shaving ROI
- Okulowooza nti enjuba yokka ejja kukigonjoola.Bulijjo kakasa okukwatagana kwa PV-entikko ku data ey'ekiseera, so si muwendo gwa mwezi.
- Okupima obunene ku kWh zokka.Battery erimu amaanyi mangi naye nga tegamala maanyi ga discharge ejja kukyasubwa entikko.
- Ensonga enafu ey’okusindika.Singa EMS ekuba amasasi mu ngeri ey’okukuuma ennyo, ereka okutereka ku mmeeza. Singa ekuba amasasi mu ngeri ey’obukambwe ennyo, efulumya bbaatule nga entikko entuufu tennatuuka.
Ekisembayo Okutwala
Okusenya ku ntikko si kukozesa masannyalaze matono. Kikwata ku kufuga ddi, ne ssente mmeka, omukutu gwo lwe gusika okuva ku ggirita mu biseera byennyini ebiteekawo ssente zo. Enjuba ekendeeza ku muwendo gw’amasoboza. Battery ekwata ku ntikko. EMS efuula byombi okuddibwamu. Nga tonnaba kwewaayo ku hardware, mala obudde obw’amazima n’omusolo gwo, data yo ey’ekiseera, n’ebintu byo ebikulembeza mu kufuga-ebiyingizibwa ebyo ebisatu biddamu ebibuuzo ebisinga obungi olupapula lw’ebintu ebikwata ku bikozesebwa bye tesobola. Okusasula mu bujjuvu kugwa mu myaka 4 okutuuka ku 8 okusinziira ku miwendo gy’okusasula obwetaavu-, enkula y’omugugu, n’ebisikiriza.
Ebibuuzo ebibuuzibwa
Mu butuufu nneetaaga amaanyi ga bbaatule mmeka okusobola okusenya ku ntikko?
Gyaakanya kW y’okufulumya bbaatule n’obugulumivu bw’entikko yo eddirira waggulu w’ekisenge ky’ogenderera, era kwataganya kWh yaayo n’obudde obuwanvu obutasalako obw’entikko eyo ng’ogasseeko n’okutereka ebitundu 15% ku 20%. Okugereka amaanyi kikulu nnyo okusinga obusobozi.
Ddi okusenya ku ntikko okw’enjuba-kwokka kwe kulemererwa?
Kiremererwa ng’entikko zibaddewo oluvannyuma lw’enjuba okugwa, mu biseera by’ebire ebibaawo, oba mu bufunze okubutuka amangu okusinga PV bw’esobola okuddamu. Era kiremererwa nga obunene bwa PV butono nnyo okusinziira ku spike, oba nga data y’ekiseera (interval data) tekakasa kukwatagana wakati w’okufulumya amasannyalaze g’enjuba n’entikko z’ekifo.
Peak shaving worth it singa tariff yange eba terina demand charge?
Si ku demand-charge economics yokka. Naye okutereka kukyayinza okusasula okuyita mu budde-obw'okukozesa arbitrage, solar self-consumption, n'omuwendo gw'okutereka. Ebitongole bingi eby'amasannyalaze byongera ku misolo gya C&I egy'obwetaavu, kale ekibuuzo kitera okuba "ddi," so si "singa."
Battery ya sayizi ki etera okubeera mu pulojekiti ya C&I ey’okusenya ku ntikko?
Pulojekiti z’ebyobusuubuzi entono-okutuuka ku-eza wakati ezisinga zikka wakati wa kW 100 / kWh 200 ne kW 500 / MWh 1. Ebifo by’amakolero ebirina emigugu eminene egy’enkola bisobola okwetaaga MWh emu ku ttaano. Sayizi entuufu eva mu data ya interval, so si mu mateeka agafuga.
Okusenya ku ntikko kwawukana kutya ku kukyusa emigugu?
Okusenya ku ntikko kukendeeza ku kW esinga obunene gy’osika okuva ku ggirita era kutunuulira ssente z’obwetaavu. Okukyusa omugugu kutambuza enkozesa ya kWh wakati w’ebiseera n’ebiruubirirwa ebiseera-eby’emiwendo gy’amasoboza ag’okukozesa. Enkola ekoleddwa obulungi-etera okukola byombi.