From December 1, the UAE's extended excise tax on sugary drinks and new tax on vaping fluid and e-cigarettes will come into play. While the increase in prices has consumers - and potentially some retailers - concerned, the truth is that increasing the cost of non-essentials that have negative health or environmental impacts has benefits; for individuals, governments, and businesses alike.

Example: In a plant that furnishes نیروگاه تلمبه ذخیرهای, کار (فیزیک) and electrical work is done by machines like electric پمپs and مولد الکتریکیs. The pumped water stores mechanical work. The amount of energy put into the system equals the amount of energy which comes out of the system, less that amount of energy used to overcome اصطکاک.
