Soluna Holdings (SLNH) shares rose in early trading Tuesday after the maker of green data centers announced an expansion of its Texas site with a company it called a “top-tier Bitcoin miner.”

“With this deal, Project Dorothy 2 is now fully marketed and contracted,” Soluna said.

The data center developer said it has expanded its flagship project site Project Dorothy 2 by 30 megawatts in its third buildout with this customer, which it didn’t name.

“It’s a major milestone in our growth pipeline, bringing 100% of our active facilities to full capacity,” Soluna CEO John Belizaire said.

Soluna shares rose 4.6% in early trading Tuesday. The company’s shares have fallen almost 70% so far this year.