As the world rushes to cut carbon emissions, hydrogen fuel cells may offer global telecoms an environmentally friendly solution to power energy-hungry remote networks, experts say.
For friends who can play games Online slots have สล็อตxoทดลองเล่น already won the first jackpot. And if friends continue to play, it is recommended that they reduce the bet amount, then gradually move the bet up and down like a ladder. Or increase your friends' bets and play more and more, it may lose some money in some rounds. But don't just give up or lose hope.
Telecoms run vast arrays of relay stations, data centres and other infrastructure that need reliable, constant power. Hydrogen fuel cells, invented in the 1800s and used in US and Russian space programmes, can replace noisy, polluting diesel generators that sometimes run 24 hours a day, their proponents say.
The cells are quiet, have few moving parts and only emit water. With the UN in August sounding "code red for humanity" over global warming, such power sources are attractive for a sector that accounts for 3 per cent of global energy consumption.
"They are a great concept and I think that diesel generators are on their way out," said Uwe Lambrette, a partner at consultancy Oliver Wyman, who focuses on telecommunications.
Emissions from powering networks and IT make up nearly a third of the carbon footprint of telecom companies, Lambrette said, based on a survey of 19 global operators.
Telecoms need generators that can quickly power up during electricity outages, and in remote locations they are often the sole power supply. Solar and wind, which do not always provide stable power levels, are not workable, experts say.