Quantas baterias preciso para zerar a conta de luz off-grid?

por: Rafaela Silva Foto: Canva

[{"selector":"#anim-8eaa23bf-1552-4750-bdc4-d7e8e9c496ee","keyframes":{"transform":["translate3d(-200.36497%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":5000,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-2177ebf4-cf1e-4663-b0b4-c7235ec1a1f9","keyframes":{"opacity":[0,1]},"delay":0,"duration":5000,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-8d3d2564-1ba0-4b14-a06c-43c49d3c11b8","keyframes":{"transform":["scale(0.15)","scale(1)"]},"delay":0,"duration":5000,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"forwards"}] [{"selector":"#anim-378a6fc7-99e9-4241-93a4-1d411b810ce9","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-4aab419b-2e7d-405e-bf4b-b65f77547736","keyframes":{"transform":["translate3d(-114.96816%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] Seta Se você quer se desconectar da rede elétrica e operar 100% off-grid , é essencial calcular corretamente a quantidade de baterias necessárias. Vamos entender como dimensionar um sistema que garante autonomia total para sua casa. Foto: Canva

[{"selector":"#anim-1c2d2d67-be54-4d85-ac2e-516dc6c7385c","keyframes":{"transform":["translate3d(-200.36497%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":5000,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-34eaaf4e-1553-45f3-82d9-edbdec355a55","keyframes":{"opacity":[0,1]},"delay":0,"duration":5000,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-041807d5-4f5d-4a16-831a-c40b7db8155c","keyframes":{"transform":["scale(0.15)","scale(1)"]},"delay":0,"duration":5000,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"forwards"}] [{"selector":"#anim-fd09d948-2070-40c1-aa03-d81735790dc0","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-fd1b4877-cb68-47af-b000-e560dfe5a77c","keyframes":{"transform":["translate3d(-115.18988%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] Seta O primeiro passo é calcular o consumo diário . Supondo um consumo mensal de 200 kWh , dividimos esse valor por 30 dias , resultando em um consumo diário de 6,7 kWh . Esse é o mínimo de energia que o sistema precisa fornecer diariamente. Foto: Canva

[{"selector":"#anim-7a7cd5a7-2517-4d12-93b5-2312cb070db9","keyframes":{"transform":["translate3d(-200.36497%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":5000,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-7119d3d5-7b00-4975-a8bd-3dc83f88049a","keyframes":{"opacity":[0,1]},"delay":0,"duration":5000,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-c1cb4237-6f11-4f77-aae0-2e52386fa563","keyframes":{"transform":["scale(0.15)","scale(1)"]},"delay":0,"duration":5000,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"forwards"}] [{"selector":"#anim-9ccdcc08-190b-4770-b39a-2cb93c9df983","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-19dbd17a-58ef-43f8-bcf8-d9b842519f55","keyframes":{"transform":["translate3d(-115.25974%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] Seta Agora, determinamos a autonomia desejada . Para um sistema seguro, consideramos 2 dias de autonomia , garantindo energia mesmo em períodos sem sol. Assim, o total de energia armazenada precisa ser 13,4 kWh . Foto: Canva

[{"selector":"#anim-9eaf2c85-2074-4d94-9720-51410d1e1ed0","keyframes":{"transform":["translate3d(-200.36497%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":5000,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-5e3e0dfa-d27b-4dbd-9143-9e396c83ae42","keyframes":{"opacity":[0,1]},"delay":0,"duration":5000,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-50cea776-ea5e-41e2-821b-f0bf256737ae","keyframes":{"transform":["scale(0.15)","scale(1)"]},"delay":0,"duration":5000,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"forwards"}] [{"selector":"#anim-60158df9-925c-455b-81a3-a3cc5a799fec","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-f70d14f0-9419-4943-bf60-ace8fa29609f","keyframes":{"transform":["translate3d(-115.18988%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] Seta A profundidade de descarga da bateria influencia o cálculo . Se utilizarmos apenas 30% da carga da bateria , devemos aumentar a capacidade total do banco para compensar essa limitação: 13,4 kWh ÷ 0,3 = 44,7 kWh de capacidade total necessária . Foto: Canva

[{"selector":"#anim-0ba1832a-bc14-451c-8ee2-2c72cd4f2d32","keyframes":{"transform":["translate3d(-200.36497%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":5000,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-76d79815-50f9-4696-9a3f-44c6c99de77f","keyframes":{"opacity":[0,1]},"delay":0,"duration":5000,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-7fba6d45-d496-4537-bd1a-7188088f1328","keyframes":{"transform":["scale(0.15)","scale(1)"]},"delay":0,"duration":5000,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"forwards"}] [{"selector":"#anim-2b46ac3b-b255-4128-9a95-faa5a9545c8a","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-1b7ff3da-0747-4896-b14f-246eae555cc0","keyframes":{"transform":["translate3d(-115.18988%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] Seta Convertendo para amperes-hora , usamos a tensão do sistema, que definimos como 24V : 44.660 Wh ÷ 24V = 1.860 Ah . Com baterias de 220Ah , dividimos: 1.860 Ah ÷ 220 Ah = 8,45 baterias , arredondando para 9 baterias em paralelo . Foto: Canva

[{"selector":"#anim-981a65a7-e2a0-4038-bc43-74969978554b","keyframes":{"transform":["translate3d(-200.36497%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":5000,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-aaa7a568-0d6d-4ca7-bccb-fa33d52d0e88","keyframes":{"opacity":[0,1]},"delay":0,"duration":5000,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-ccf2169d-8d9e-4b31-82c2-5e0d21b42a70","keyframes":{"transform":["scale(0.15)","scale(1)"]},"delay":0,"duration":5000,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"forwards"}] [{"selector":"#anim-323b136b-a64b-4a42-b486-9975b0af86ac","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-da889bc2-16c6-4797-ae75-e070f31c8211","keyframes":{"transform":["translate3d(-118.18181%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] Seta Agora, calculamos as baterias em série . Como cada bateria tem 12V , precisamos de 2 baterias em série para atingir os 24V do sistema. Multiplicamos pelos 9 conjuntos em paralelo: 9 × 2 = 18 baterias no total . Foto: Canva

[{"selector":"#anim-46893b45-7448-459d-a3dd-0d3202bbd418","keyframes":{"transform":["translate3d(-200.36497%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":5000,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-9a3a3db5-1c18-4d71-b96e-e08eb469dcb4","keyframes":{"opacity":[0,1]},"delay":0,"duration":5000,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-1bdaee23-4cc2-4cb8-af33-b357ee85ad0f","keyframes":{"transform":["scale(0.15)","scale(1)"]},"delay":0,"duration":5000,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"forwards"}] [{"selector":"#anim-ef23b59d-c502-43ca-af60-52645c3ea60b","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-6ec50a18-4c5e-439a-8f65-081121ada6f3","keyframes":{"transform":["translate3d(-115.00001%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] Seta E a resposta? Para um consumo médio de 200 kWh/mês , autonomia de 2 dias e profundidade de descarga de 30% , são necessárias 18 baterias de 220Ah . Agora, resta analisar o custo e manutenção para saber se a migração para um sistema off-grid realmente compensa! Foto: Canva

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[{"selector":"#anim-2013627c-f2c4-4129-9a0f-6750539362ea","keyframes":{"opacity":[0,1]},"delay":0,"duration":1200,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-7b829fc8-8669-4bac-91be-6b68cd4fbd8c","keyframes":{"opacity":[0,1]},"delay":0,"duration":1200,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-b5e5f730-5953-4c93-bf77-2b3cbc26e86e","keyframes":{"opacity":[0,1]},"delay":0,"duration":1200,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}]

[{"selector":"#anim-53003f63-1d31-4156-96c4-2147d39fe3cb","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-7b1af0cf-6f2e-4764-a5a1-b97daec33b6d","keyframes":{"transform":["translate3d(0px, -1557.48909%, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-764b4b59-a99a-486e-a688-c7cf5841ce76","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-05fa9c8f-8e8d-417b-86c6-8ad6fd4b62e7","keyframes":{"transform":["translate3d(0px, 1579.2282%, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] LEIA MAIS EM INVESTSUSTAIN.COM.BR Seta

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