SOLAR ENERGY

It is estimated that Glasgow will need 3.2 x 107 MWh per year of electricity in 2017. A plan to meet this demand completely by solar energy is to be evaluated. Assume fixed solar panels of efficiency 20% and the ground reflection (albedo) to be 0.2.

1. Find the ideal tilt and azimuth angle for Glasgow.

2. What is the average daily electricity demand?

3. Which day of the year has the lowest number of daylight hours? How many hours of daylight are there on that day?

4. Between the sunrise hour angle and sunset hour angle, using an Excel spread sheet calculate at equal steps of 7.5o hour angles

(a) The zenith angle.

(b) The angle of incidence.

(c) The global irradiance.

(d) The total irradiance.

(e) The time average of the total irradiance

(f) The answer from (e) multiplied by the number of daylight hours.

5. Find the total area of solar photovoltaic that would be required to meet the demand on this day.

Write a brief report (approx. 1500 words plus any output) describing the analysis and results:

The report should follow the recommended structure below.

1 Introduction: This will cover the background theory of solar energy and PV cells.

2 Describe and explain your reasoning for each of your calculations.

3 Results: Present your results as Excel tables, and graphs, etc.

4 Discussion and Conclusion: Discuss the results of the analysis.

5 References. You are expected to undertake some additional background reading on solar generation, which should be referenced.

**Subject Engineering Power System Engineering**