Home assistant novice here . I have set up a statistics graph card but i am trying to link to a date selector so that i cna search historic values. Is this possible and if so can someone point me in the right direction.
Yes, you need to place an energy-date-selection card on your dashboard.
https://www.home-assistant.io/dashboards/statistics-graph/#energy_date_selection
https://www.home-assistant.io/dashboards/energy/#energy-date-picker