Bitcoin miner Riot Platforms Inc. made millions of dollars by selling power rather than producing the tokens in the second quarter as the crypto-mining industry continued to grapple with the impact of low digital asset prices.

The Castle Rock, Colorado-based company had $13.5 million in power curtailment credits during the quarter, while generating $49.7 million in mining revenue. Riot booked $27.3 million in power curtailment credits last year and $6.5 million in 2021 from power sales to the Electric Reliability Council of Texas, which is the grid operator for the Lone Star state.