Soluna Holdings Inc. (NASDAQ:SLNH) is one of the best penny stocks under $1 to buy right now. On February 17, Soluna Holdings announced a six-megawatt expansion of its partnership with Blockware at the Project Dorothy 1 site in West Texas. This development marks the third time the two companies expanded their collaboration, highlighting a successful model of scaling HPC within existing renewable-powered infrastructure. Deployment for this new capacity commenced in January and is on schedule to reach full c ...