PLN purchase Sengkang P PLANT, page-14

I agree that hard currency is important to Indonesia, as it is to all countries that need to participate in the global monetary system where no central bank in their right mind would accept the local currency as collateral.

But there does not appear to be any shortage in hard currency in Indonesia - foreign reserves are about $140b which is enough to cover 6 months of debt service and imports.

Also see this report by the IMF from 3 days ago giving a pretty rosy outlook:

https://www.imf.org/en/News/Articles/2023/03/21/pr2387-indonesia-imf-staff-completes-2023-article-iv-mission-to-indonesia

The evidence is that Indonesia is prepared to sacrifice hard currency now for energy security or for developing energy intensive industries locally so that they can export higher value commodities or products.