Hi Energy,
Thank you for reaching out regarding the energy consumption of your dryer. The dryer that you have has a 644/kWh/yr, and you can check the specification on this link: https://image-us.samsung.com/SamsungUS/home/home-appliances/washer-and-dryer-sets/DVE45T3400P_V4.pdf.
You can also check this link: https://www.samsung.com/us/home-appliances/dryers/electric/7-4-cu-ft-electric-dryer-with-sensor-dry-in-platinum-dve45t3400p-a3/?redir=DVE45T3400P/A3#specs, under specs, and click see all specs.
Also, if you wish to purchase a new dryer that has an energy saver you can visit our website at www.samsung.com/us.
For further assistance, you may contact us via the following options:
1. Facebook Messenger: http://m.me/samsungsupport
2. Twitter: https://twitter.com/messages/compose?recipient_id=18768513
3. Samsung Community: https://us.community.samsung.com/t5/Samsung-Community/ct-p/us
4. Samsung Customer Care: 1800-7267-864
Thank you for choosing Samsung, and have a great day!
Ticket number: 1144199863
^Rainly