All bakeries requires hot water to clean the utensils used in production process as fat is a major ingredients in bakery product .Utilities run on these fuel for heating water are Hot water generators , Boilers or Hot water geysers . Even at large bakeries the employees canteen consumes large amount of hot water for utensil cleaning . Solar water heating gives these bakery an alternative source energy for heating water and reducing cost of fuel .Temperature attained for such applications could be between 55deg C - 60 deg C
The payback period for such investment could be something between 18 -24 months depending upon the consumption .Many companies like Britannia has installed solar water heating system for its hot water requirement .The most popular supplier of such system is Tata -BP Solar India Ltd .
Other application for usage of solar energy for the larger bakeries have been the lighting around the factory through photo voltaic s cells .
Major advantage of solar energy are
- Lower maintenance cost
- Clean environment
- Available in abundance all around the year excepts for some region
- Save energy cost by reducing either fuel or electricity cost .
- No storage space required for fuel .No logistics
Here is a line diagram for such arrangement