I've spent the last 7 months building Vatio (vatio.dev), an API for US electricity market data. Wholesale prices, grid demand, generation mix, all seven US grid operators through one REST API. The gap I went after: this data is public but painful. It's scattered across seven operator systems with different formats and rate limits, and the commercial platforms that clean it up start around $1,000/month with a sales call. I sell it for $29/month flat, with a free tier and no card required. Whe...