Question

 If the solar panel energy is 2 kWh and solar radiation is 5 kWh/m2/day. What is the solar panel power required?
 500 W
 200 W
 2 kW
 400 W​

Answer 1

Given:

If the solar panel energy is 2 kWh

The solar radiation is 5 kWh/m2/day

To find:

What is the solar panel power required?

Solution:

The energy input at the solar panel = 2 kWh

The solar radiation = 5 kWh/m²/day

To solve the given problem, we will use the following formula to find the power required by the solar panel:

$\boxed{\bold{Power =\frac{Energy\: at \:the\: panel}{Intensity} }}}$

Substituting the values in the formula, we get

$Power = \frac{2\:kWh}{5\:kWh/m^2/day} = 0.4 \:kWh$

The options given to us are in W so we will convert the answer from kWh to W.

We know,

1 kWh = 1000 W

∴ 0.4 kWh = 0.4 × 1000 = 400 W ← option (4)

Thus, the power required by the solar panel power is 400 W.

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