[CrypticShift]

> What is the biggest challenge for solar energy?

If you factor in all the cycle energy (making, disposing, replacing…), What is the real current total energy balance of solar energy (versus others)?

I'm wondering because solar is very tech intensive. So if you build a 1 billion dollars farm, 10 years later the technology is a lot more efficient. Are you going to replace it all?

To be honest, this is more like a question too: How big of a problem is this , energetically speaking?

[Things4People]

That's a good point! But how can the technology develop if no one would invest in it?

Do you know anything about the whole life cycle of solar energy? I would be really interested to know more about it.

[CrypticShift]

> Do you know anything about the whole life cycle of solar

Unfortunately, No. And it is indeed a dilemma. If you don’t invest, you don’t grow. However, if you invest early, you may be creating a lot of unnecessary energy use.

This also apply to things like electric cars and batteries. We should always see the bigger picture, but someone has to do the dirty math.