HAMK University of Applied Sciences
Name of degree programme: Mechanical Engineering and Production Technology
Place: Kaartokatu 2, 11100 Riihimäki, Finland
Subject of Bachelor’s thesis: Energy balance for small wind generators
Commissioned by: Finnwind Oy
Author: Vishesh Lohani
Year: 2011
ABSTRACT
Name of degree programme: Mechanical Engineering and Production Technology
Place: Kaartokatu 2, 11100 Riihimäki, Finland
Subject of Bachelor’s thesis: Energy balance for small wind generators
Commissioned by: Finnwind Oy
Supervised by: Tomi Sankari
Author: Vishesh Lohani
Year: 2011
ABSTRACT
This thesis is commissioned by Finnwind Oy. It is mainly concerned with the energy balance or energy pay-back of different wind generators manufactured by Finnwind Oy.The comparison of energy used by turbines in its life span with the energy produced by a turbine is known as the energy balance. Energy payback time means the length of time that a wind generator will take to produce that same amount of energy that was used to make it. This is used with renewable and non- renewable energy solutions to describe how long it takes for the device to generate the amount of energy that it took to make it in the first place. Tuule series wind turbine comprises of maximum 5. 3 kW turbines on a 18-27 m tower and is assumed to give energy of 12000 kWh annually in the sea shore and 5000 kWh on land.