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2. A client has an installation consisting of five 10 W lamps operating from 6 PM to 5 AM, a 200 W refrigerator running only from 10 AM to 2 PM, and a 50 W television used occasionally from 6 PM to 11 PM. What is their daily energy consumption?
3. Rank the following appliances in ascending order of their daily energy consumption: 1. A 1 kW iron used for one hour per day 2. Two 450 W projectors operating from 6 PM to 5 AM 3. A 1500 W electric stove used daily from 10 AM to 1 PM and from 5 PM to 10 PM 4. 35 lamps of 30 W each, operating from 6 PM to 5 AM
4. What is an important criterion for choosing a battery in a solar system?
7. Determine the required lithium battery capacity to ensure 3 days of autonomy for a 48V system powering 10 lamps of 20W for 8 hours/day and a 2000W coffee machine for 1 hour/day, considering a 90% efficiency and a 90% Depth of Discharge (DoD).
10. Which of these factors does NOT influence the choice of cable size when designing a solar system?