Every 10 minutes a new block is mined. A year contains 525960 minutes. So there are 52596 blocks in a year.
Currently 6.25 btc is mined in each block. That means that 52596 * 6.25 = 328725 btc is minted this year.
The estimates of the energy impact the bitcoin network has depends on the source. Cambridge centre for alternative finance gives an upper bound of 281.76 TWh, an estimated bound of 123.99 TWh and a lower bound of 42.05 TWh.
Digiconomist estimates a number of 77.78 TWh.