Umthombo wamandla oqhathaniswa

Ngo-1979 NASA washintsha ku-Mod-1, i-wind turbine emibili-bladed ene-rotor engu-61 metres ngaphesheya, emfuleni eNorth Carolina. Yabe iyinye yezinto ezinamandla kakhulu zomoya ngesikhathi sayo futhi yabe yisinye sezimpi zokuqala zokuba amandla omoya athathe indawo ebalulekile kwi-grid. Iminyaka emihlanu ngemuva kwalokho, umoya kanye nelanga yizinto ezikhula ngokushesha kakhulu zomthombo wogesi emhlabeni. Ukukuqonda ukuthi kungani, nokuthi yini abakwazi ukuyikwenza, kusiza ukuqhathaniswa komthombo ngamunye ngemibandela efanayo.

Ukuphila konke, hhayi nje i-chiminea

Ukukhishwa kwe-power station akugcini nje ekamelweni lokushisa. Insimbi nekhonkrithi kumele yenziwe, igesi ikhishwe futhi ithunyelwe, futhi konke kufanele kususwa. Ukulinganisa kwempilo yokuphila kuhlanganisa konke lokhu ku-kilowatt-hour. The IPCC’s review of hundreds of such studies gives a clear ranking: coal emits around 820 grams of CO2-equivalent per kilowatt-hour, gas about 490, while wind, nuclear and hydropower are around 10 to 25, and solar around 40 to 50.

Ukuphepha kutshela inkathi efanayo. Uma sibala izifo ezivela emiphumeleni yengozi kanye nokugqwala kwezulu ngeyunithi ngayinye yogesi, ikhoyili nepetroli yizinto ezibangelwa kakhulu ukulimala, ngoba ukudlidliza kuzo kwenza umoya ube nama-particles. Umoya, i-nuclear nelanga ziphephile izikhathi ezingaphezu kukamakhulu.

Iyini i-source ngayinye engcono ngayo

• Ikhoyili negesi ingasetshenziswa uma idingeka, kodwa ikhiqiza uthuli oluphezulu kakhulu. Igesi ikhipha cishe inhlamvu ye-CO2 njengekhoyili uma iqhutshwa, kepha ukukhishwa kwemethane kunciphisa isikhala.
• I-Nuclear isebenza ngokuqinile ngemithombo ephansi kakhulu kanye nendawo yomhlaba encane; ibiza kakhulu futhi ihamba kancane ukuthuthukiswa, futhi izidakamizwa kufanele zilawulwa isikhathi eside.
• I-hydropower ilula futhi iphansi-carbon, kodwa amadamu abangela ukugwazeka kwemifula nokushintsha imifula.
• Umoya iphakathi kwezinto ezibiza kakhulu zogesi omusha; ihluka ngokwesimo sezulu futhi idinga indawo, ama-grids kanye nokugcinwa.
• Ilanga libiza kakhulu, lisebenza ngokuzimela futhi lilungele izindlu eziphezulu kusukela edolobhaneni kuya esikhumulweni sezindiza; alikhiqizi lutho ngehora lobusuku futhi lincane ngesikhathi sobusika.

Akukho mthombo ophelele. Kunezilinganiso ezingcono nezibi kuphela, futhi isilinganiso sizokhetha.

Ingxenye elahlekile: ukumelana

Inkinga yendlela yokusebenza ehlanzekile akuyona ukuletha amandla adingekayo, kodwa ukuhlangabezana nokuthengiswa nokudinga ngasikhathi sinye. Ibhethri, amanzi aqhutshwa ngepompo, ama-grids anamandla ahlanganisa amandla emiphakathini, ukufuna okulandela ilanga nemvula, kanye nezitshalo eziphansi ze-carbon zonke zigcwalisa le nkinga. Le yindlela esibheka ngayo ukuthuthukiswa kwe-modular okungakwazi ukuhlala lapho amandla esetshenziswa khona, njengokuthi Fan Wall.

Ungasiza kanjani

• Hlanganisa ukuhlinzekwa kwakho ngentengo evuselelekayo noma izinhlelo zesizwe zokusetshenziswa kwengcindezi lapho kukhona khona.
• Sebenzisa amandla uma kuhlanzekile. Sebenzisa ama-washer futhi ukhokhise izimoto lapho umoya nelanga ligcwele; ama-grids amaningi ashicilela isikhathi sangempela se-carbon intensity.
• Beka amapaneli ezindlu. Izindlu, izikole, izitolo ezinkulu kanye nezitolo zokupaka ziyizindawo ezilungiselelwe ukukhiqiza amandla kagesi; buza ikomiti lakho nomsebenzi wakho.
• Gcina ngaphambi kokwenza. Ukugcoba kanye nemishini esebenza kahle kususa ama-bills nama-emitters ngesikhathi esifanayo.
• Ubuza ngenombolo. Ubuze umhlinzeki wakho we-electricity kanye negunya lakho ngohlelo lokukhishwa kwegesi othengayo.
• Join the research on the contribution board.

Izinsizakusebenza

• IPCC (2014), AR5 Working Group III, Annex III: Izindleko ezikhethekile zezobuchwepheshe kanye nezici zokusebenza
• I-Our World in Data (2020), Yiziphi izifunda eziphephile nezihlanzekile zomthombo wamandla?
• NASAISibhedlela Socwaningo SaseGlen, Imbali yocwaningo lwe-wind energy
• IEA, Renewables