The Yamaha rider made a sensational MotoGP debut three weeks ago in Qatar, going on to finish in second place only behind world champion Casey Stoner.
Lorenzo continued with his strong start to life in the top category today at Jerez, setting the fastest time ahead of Yamaha teammate Valentino Rossi.
The Spaniard was delighted with his day's work and with the Jerez atmosphere, and he believes he will be able to fight on top all weekend.
"The first day has gone very well and I'm really happy to have had a day like this here at Jerez," said Lorenzo. "My bike feels great and it's a huge emotion for me to be here riding 'at home' in front of all the Spanish fans.
"I feel like all of Spain is watching us this weekend and I hope that we're going to be able to give them a great show here over the weekend.
"We have a good base setting after the test here and the first race and, although of course we have more work to do, I think that we're on the right track. My team is working well, the bike and the Michelin tyres also are very good and I feel that there is great energy, excitement and motivation in our garage.
"After today I think we're in good shape for the weekend and my hope is that we will be able to fight at the front. The weather today was fantastic and I really hope this continues, for the fans and for us."
autosport.com