Zero Energy
I would like to extend my deep and sincere gratitude to my supervisor for his guidance and patience over the last 6 months. His kind support and wide knowledge has been key to my academic development, and his research style has had a profound influence on my work.

I am grateful to Lecturer Nawaraj Battarai, Deputy Director of Center for Energy Studies, for his guidance and support in developing algorithm for cost analysis of the solar home system and providing vast resources related to Solar PV system, and preparing this document, without which it would have been next to impossible to write this thesis.

I wish to express my warm and sincere thanks to Professor Amrit Man Nakarmi, Dr. Tri Ranta Bajracharya, Director of Center for Energy Studies and Professor Dr. Bhakta Bahadur Ale for their constructive criticism during project evaluation, which helped me to make necessary improvements. I would like to express my appreciation to Dr. Rajendra Shrestha, Head of Mechanical Engineering Department, Ram Chandra Sapkota, Assistant Dean, Institute of Engineering for their support in this thesis work.

During this project I have collaborated with my colleagues of 2065 batch of Master of Science in Renewable Energy Engineering, Institute of Engineering, Pulchowk Campus and I would like to extend my warm thanks to all those who have helped me in my work. I thank my fellow colleagues Surya Narayan Mandal, Sundar Bahadur Khadka, Kaushal Chandra GC and Samir Bajracharya who made each day at IOE a new experience for me.

Special thanks goes to Tri Narayan Maharjan and Abhishek Singh, coming up with great ideas, helping me design the system and providing me with strength and continuous support through the ups and downs while developing this application.

I am forever indebted to my family, for their patience, encouragement and understanding without which it would have been impossible for me to finish this work.

Finally, I would like to dedicate this thesis to all the Nepali people who are suffering from heavy load shedding and those forced to live in complete darkness without electricity. It won't bring basic needs like electricity that they deserve , but I hope this application will help in its own way.