Homework SourseCircle your answer 1 What is the single most abundant foem o
Solution
1 ) sunshine ( sunlight)
2) In full sun, you can safely assume about 100 watts of solar energy per square foot. If you assume 12 hours of sun per day, this equates to 438,000 watt-hours per square foot per year. Based on 27,878,400 square feet per square mile, sunlight bestows a whopping 12.2 trillion watt-hours per square mile per year.
That’s like giving every single person on the planet (that’s 7 billion people) a light bulb which will shine bright for their entire lifetime. Every hour, each square meter of the upper atmosphere receives 1.367kWh of solar Energy. Since a 60 watt bulb consumes 60 watt x hours in one hour, or 60 Wh x 24 hr/day = 1440 Wh per day and there are 120 trillion square meters in our atmosphere, that’s like dropping 120 TRILLION 60 watt light bulbs and still having enough electricity in one hour of sunlight for ALL of those light bulbs to shine for 24 hours!
3) less than 1 % ( less than 2 % in US )
4 ) preventing using solar is depend on Area you are living , like atmospheare , weather condition, government pollicy , politics and at some time it depends on Intallation Cost . because at the time of initial level it looks costly if there is no scheme of zero % loan or % intrest EMI form any Gov body.
5 ) i cant see proper Picture But looking in to it , Saving Of money from Solar is almost HALF of normal enegy source, but still it depends like in some country government gives subsidy on installing solar system.
also depends on subsidy , government gives diffrent subsidy. if we consider intallation cost, we can save all the money spending for electricity . after 8-10 years
6) MPP is maximum power point , it is the selection of voltage current ratio which gives Maximum effi of Output from panel. the Device which is used to get this is called MPPT ( maximum power point tracker)
7) As per the standered Rules SOLAR energy is greatest renewable source not even Qatar but now whole world is looking for Free source of energy with economical and less polluted energy source.
8) Solar photovoltaic Do not Convert Sunlight to heat energy , it directly convert sun light to Electrical Energy ,
But some time because of heat it loss some Energy ,
The plant which convert Sun light to Heat enegry and than convert to electrical Energy is called SOLAR THERMAL PLANT/TECHNOLLOGY
9) Battery with having 12 AH capacity that means it will run 12 Hours if It is supplying to 1 Amp load.
here load is drwing 1 amp , so it will give supply for 12 hours . ( only if consider Ideal Source)
for more info: if Amp drawing is 2 amp it will long 12 / 2 = 6 hour
if Amp drawing is 0.5 amp it will long 12 / 0.5 = 24 hour
10) even i was not in class at the time you performed analysis,
BUt as per my Personal Experiance Cost Of Ownership for LED light Bulb is very less.( if you consider LED imported from out source and making Circuit or PCB at your company by combinig all components required.
LED is very energy saving and economical device which is useful for person who is using as well as whole earth.
