4 ms·
Original commenter might be a bit behind on many things but this is actually my day job. Do you have a source for the reliability claim? There are so many good
by tomas789 3y ago
Original commenter might be a bit behind on many things but this is actually my day job.
Do you have a source for the reliability claim? There are so many good old transformers deployed around the world. Many of them working for 10s of years without a replacement. I'd be suspicious that a buck converter will have longer MTBF than oil submerged transformer.
Also, I don't see why it is mentioned here but NREL estimates the cost of grid scale inverters (for installations of 100 MW) to be 5-10x more than what was mentioned. [1]
[1] https://www.nrel.gov/docs/fy22osti/83586.pdf https://www.nrel.gov/docs/fy22osti/83586.pdf
- algo_trader 3y ago> but this is actually my day job. You are probably more knowledgable than me. I am just here for the cake. However, AFAIK the most fault prone components in PV are inverters and (where applicable) transformers. > 5-10x more than what was mentioned. This was my mistake. I started with 5c/W and missed a decimal place. None of this addresses the key issue - you mentioned 10% loss for a simple DC converter, and the next commenter [1] mentioned the newer generation of far superior alternatives. [1] https://news.ycombinator.com/item?id=37260441 https://news.ycombinator.com/item?id=37260441