Based on the original core integration (https://github.com/home-assistant/core/tree/dev/homeassistant/components/smart_meter_texas) and this API (https://github.com/grahamwetzler/smart-meter-texas)
Updated to fix the issue with the SSL certificate described here: home-assistant/core#57582
Another working projects as alternatives: https://github.com/scadaguru/pysmtreader and https://github.com/stmrocket/ha-smartmetertexas