Projeto de eficiência energética, o que é? Por onde começar?

By 21/11/2019 novembro 29th, 2019 Eficiência energética
Eficiência Energética

Descubra os pontos mais importantes de um projeto de eficiência energética.

Ter um projeto eficiente é um tema complexo e robusto! Este artigo pode ser considerado um roteiro para que os primeiros passos sejam dados em direção ao seu próprio projeto eficiente.

O que seria eficiência energética?

Todo estudo que leva a maximizar o uso de energia elétrica, adotando melhores práticas, normas técnicas e  legislações vigentes, pode ser considerado parte de uma etapa na busca de eficiência energética.

Por exemplo, utilizar correntes de vento para melhorar a climatização do ambiente, substituir lâmpadas fluorescentes por modelos de led ou, até mesmo, utilizar motores e grandes equipamentos adequadamente.

Por definição, a eficiência energética consiste da relação entre a quantidade de energia empregada em uma atividade e aquela disponibilizada para sua realização. Quanto menor, mais eficiente.

A geração de energia elétrica no Brasil é predominantemente hidráulica.  Sendo assim, a energia é gerada através das hidroelétricas ou PCH’s, pequenas centrais de hidroelétricas conhecidas como fios d’água.

Por fim, temos também fontes renováveis onde enquadram-se as eólicas e também as fotovoltaicas; existem também fontes não convencionais como bancos de baterias.

A transmissão de energia no Brasil é composta pelo SIN (Sistema Interligado Nacional) que é um sistema que interliga as diferentes empresas geradoras de energia. São essas empresas que fazem a transmissão da energia às distribuidoras até chegar ao consumidor final.

 

 

Eficiência energética é para todos os ambientes

Em se tratando de eficiência energética em construções e ambientes em geral, podemos destacar alguns pontos importantes:

  • Consumo de energia na construção;
  • Conforto térmico;
  • Climatização e/ou Ventilação natural;
  • Aquecimento de água;
  • Conforto visual;
  • Iluminação natural e iluminação artificial.

Na indústria, levamos em consideração grandes máquinas e equipamentos como caldeiras e fornos, motores, compressores de ar, bombas e transformadores.

Na área urbana, são considerados, além do disposto acima, também o micro-clima e o planejamento urbano.

A fim de fazer um diagnóstico nas edificações existentes, uma das ferramentas mais usadas para projetos nesse cenário é uma auditoria energética, através da ISO 50001.

Todo projeto de eficiência energética necessita também de uma análise econômica, observando critérios para tomada de decisão. Dessa forma é feito um ranking com as alterações mais viáveis baseada no retorno do investimento com a economia proposta.

Além de tudo já mencionado, existe um programa de P&D e eficiência energética da ANEEL que é operacionalizado pelas concessionárias e instituições no Brasil, o qual faz repasses de 0,75% de sua receita operacional líquida para o desenvolvimento de projetos por empresas e pelo setor público, oferecendo atrativos de financiamento, por exemplo.

Para mais informações sobre o tema ou até mesmo para estudar a viabilidade de um projeto de eficiência energética em seu negócio, entre em contato conosco.

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