This special interest group is for professionals to connect and discuss all types of carbon-free power alternatives, including nuclear, renewable, tidal and more.

Post

What's a renewable source?

Rafael Herzberg's picture
Consultant energy affairs Self employed

Rafael Herzberg- is an independent energy consultant, self-employed (since 2018) based in São Paulo, Brazil* Focus on C level, VPs and upper managers associated to energy related info, analysis...

  • Member since 2003
  • 1,898 items added with 1,113,061 views
  • Nov 23, 2021
  • 271 views

Your access to Member Features is limited.

What's a renewable source?

The question seems obvious and even impertinent!

I realized that in our (Brazilian) collective imagination, a renewable source of excellence is the solar on the roof. And of course it is!

There is even the perception that solar and wind are "the" renewable sources. Hydroelectric power does not fall into this category, and again, I refer to the established common sense.

Our matrix is 70% hydraulic, which is intrinsically renewable!

When there is no sun during the day and at night, the country's matrix serves as the back up for the household that has solar energy on its roof. And when this happens, the sources that "help" includes hydraulic, wind, and thermal.

In other words, renewable such as solar also have their component of emissions as they depend on the country's matrix.

Rafael Herzberg's picture
Thank Rafael for the Post!
Energy Central contributors share their experience and insights for the benefit of other Members (like you). Please show them your appreciation by leaving a comment, 'liking' this post, or following this Member.
More posts from this member
Discussions
Spell checking: Press the CTRL or COMMAND key then click on the underlined misspelled word.
Leo St. Hilaire's picture
Leo St. Hilaire on Nov 24, 2021

Rafael, Why does Brazil not recognize Hydroelectric power as renewable? It many countries Hydroelectric power is recognized as such.

Rafael Herzberg's picture
Rafael Herzberg on Nov 24, 2021

Hi Leo, that's precisely "the" question!

Here in Brazil, "renewable" is considered by most of the people as PV solar and wind. I don't  understand why hydro is not considered! 

In the same token, I don't see the need to buy renewable certificates for power purchased in Brasil since 70% is hydro, 10% wind and 5% solar. The difference is thermal. 

My best guess is: the guys who sell rooftop solar for example claim that their solution is "actually renewable". Funny that this is widely accepted!

Get Published - Build a Following

The Energy Central Power Industry Network is based on one core idea - power industry professionals helping each other and advancing the industry by sharing and learning from each other.

If you have an experience or insight to share or have learned something from a conference or seminar, your peers and colleagues on Energy Central want to hear about it. It's also easy to share a link to an article you've liked or an industry resource that you think would be helpful.

                 Learn more about posting on Energy Central »