Previously, the camp was powered by generators, "but the supply was not stable", he said. "The climbers couldn't rest well with the big noise from the generators, and the diesel of the generators brought hidden dangers for the environment."

The spring season is also good news for Tibetan herdsmen, Sonam added, as their incomes will be boosted by working as porters or by renting out yaks to carry supplies up mountain passes.

The Nepali participants all entered from Tibet's Gyirong Port, and the climbers of other countries made their entry from Lhasa, the regional capital.

The climbers will set up tents at base camps and then will receive adaptive training before relocating to higher sites assisted by guides.

Last year, 696 climbers from 34 countries and regions, including 424 in the spring, visited Tibet to climb, according to Tibet Commercial News.

Surrounded by snowcapped mountains and glaciers, Tibet has many natural advantages for its mountaineering industry. It has five mountains higher than 8,000 meters, more than 70 mountains higher than 7,000 meters and at least 1,000 mountains higher than 6,000 meters.