i renewable energy for rural economic development rered project sri lanka solar industry market survey final report prepared by acnielsen pvt ltd administrative unit september 2005 ii table of contents page abreviatons 1 0 background 2 introduction to the assignment 4 grant mechanism 5 objective study 7 3 methodology sampling process 8 analysis and interpretation framework 10 understanding shs users 14 universe vendor company 15 normal purchased prices 19 breakdown dsds aga s 23 month purchase 26 sample 30 31 demographic profile 32 family composition hoh 35 other members 38 activities engaged hh 40 nature