~Energy
What is the average amount of hours per day a PV panel could produce sunlight here in Waimea?
Sunrise is at 5:15 am and Sunset is at about 7:00 pm. That would be about 14 hours of sunlight. Then you would have to account for when the sun has to come over the mountain and shown into Waimea, giving or taking about an hour.
What is the efficiency of a PV panel from photon to electron?
The energy from the proton would be transferred to the electron, with that energy; the electron can leave and be used as potential electricity.
What is the efficiency of a solar thermal panel from photon to hot water?
Sun would hit the panel, to then give the photons energy, which would then make electricity, to then heat the water. The efficiency of this process would be 11-15% since the efficiency of a solar panel is only that.
If you have a 1 square meter PV panel that has 15% efficiency, and the solar radiation is 1000W/m2, how many watts of electrical power would you expect from this panel?
150 Watts of power
How much would you expect to get from a solar thermal panel of the same area, same day?
1000 watts of power.
If you measured the power from a 220W panel that puts out 48V, how many amps of current would this be?
4.6 Amps
How many watts would a coffee maker use if it that a resistance of 9.6 Ω and ran at 120V?
1,152 Watts
If a solar thermal panel has a cost of $2000, lasts 30 years, and produces 10 kWh of thermal energy each day, calculate the ROI and TCO, assuming HELCO charges $0.50 per day.
ROI: 67 days
TCO: -$326,310
Find watts:
Coffee pot's volts are 117.1, Amps are 11.53, what are the watts?
answer: 1442
What type of appliances does Joules Law only work for?
Answer: Ohmic loads
1. What does PPA stand for?
2. What is Ohms law?
3. What is the company's name that owns HELCO?
1. A light uses 5 volts of power and a resistance of 8 ohms, what is the current of the light?
2. What does a PPA accomplish?
3. How do you distunguish between different appliances while looking at the graphs on your cottage's TED unit?
Questions:
1. Amps = 35.98
Volts = 357.32
Watts = ?
2. Watts = 2167
Amps =22.75
Volts = ?
3. Who lives in Cottage #2?
Answers:
1. Watts = 12856.37
2. Volts = 95.25
3. Mr. Franklin and his family
1. Why is the W in kWh capitol?
2. What is the ROI of a solar panel that cost $6000, lasts 7 years and produces 4kWh? Helco--> (.50)
3. What are some ways that a solar panels efficiency could be messed up?
4. How can you make the water heaters in the teacher cottages more efficient?
5. What is the equation for power factors?
1. If you buy a wind turbine that cost $2,000, and produce 20kw per hour, and works all day long, whats the ROI and TCO? HELCO is charging $.50 per kw, and life
2. How to find KWH/person, KWH/month, mean, and whats the Standard deviation mean?
3. What is the resistance of a microwave if the current is 16 and the voltage is 120?
4. What is micro-credit?
1. calculation between votage, amp, resistance, power
2.calculation of the solar panel efficiency
3. learn to dread the diagram from the cottages's load and solar and guess which parts for what kind of electricity
4. what energy for? how it changes the world?
5. how the oil prize go up and down effect the whole world?
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