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A comment on Launch HN: Heimdal (YC S21) – Carbon neutral cement. Parent comment

Re:Launch HN: Heimdal (YC S21) – Carbon neutral cement by rout39574 on Monday August 02, 2021 @12:43PM (#28039061)
What electricity sources have you identified as acceptable for this? Proximity of e.g. hydro to an ocean seems like a small set of sites. :) A naive glance suggests that solar capacity factor of 25% is going to put that particular source out of your budget.
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Re:Launch HN: Heimdal (YC S21) – Carbon neutral cement by LeifCarrotson on Monday August 02, 2021 @02:21PM (#28040594)
One fortunate aspect of electricity is that it's easy and efficient - on the order of 2-6% losses due to transmission for hundreds of miles - to transport.

Whether your country has invested in renewable sources like hydro plants and associated high-voltage, long-distance transmission lines is what matters. The geography of whether hydro plant is near the coast or not is of less importance than whether it exists or not!

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Re:Launch HN: Heimdal (YC S21) – Carbon neutral cement by twic on Monday August 02, 2021 @04:33PM (#28042259)
There's quite a lot of wind power available at sea.
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Re:Launch HN: Heimdal (YC S21) – Carbon neutral cement by marcuslima on Monday August 02, 2021 @06:48PM (#28043680)
Convenient that ;)
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Re:Launch HN: Heimdal (YC S21) – Carbon neutral cement by uranium on Monday August 02, 2021 @01:52PM (#28040156)
+1

Can you handle intermittency in your power, or do you need to run continuously? What capacity factor do you assume in your cost model?

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Re:Launch HN: Heimdal (YC S21) – Carbon neutral cement by marcuslima on Monday August 02, 2021 @06:43PM (#28043621)
That's actually the trickiest part of the engineering, but we've managed to make it directly compatible with the an intermittent energy source like solar and wind
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