SUFFiciENcy EcONOMy ANd GRASSROOtS DEvElOPMENt
SUFFiciENcy EcONOMy ANd GRASSROOtS DEvElOPMENt
SUFFiciENcy EcONOMy ANd GRASSROOtS DEvElOPMENt
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258<br />
The Meaning of Sufficiency Economy <br />
International Conference<br />
9. The average rural population density according to the Census estimates<br />
indicates roughly around 1500 people/village. A village is further broken<br />
down into ten communities – each consisting of 150 people. According to<br />
EIA (2008), India has 50.5 W energy consumption per capita. This implies<br />
that average community requirements would be around 7.5 kW capacity.<br />
The peak demand is extrapolated to 10 kW for capacity purpose, which can<br />
be handled by bio-diesel generator backup in case of lesser generation. <br />
10. In a day, it was found that on an average 181.8 kWh ((50.5/1000) x 24 x<br />
150) was required. For simulation, we halved the value to 90.9 kWh for<br />
simulation, thus providing electricity for atleast 12 hours. The remainder<br />
could be supplied by biodiesel generator set and battery back-up.<br />
11. The plant starts its operation in FY 2009-2010. It is assumed to have been<br />
ready for start-up at the starting of the same fiscal year.<br />
12. For generating electricity from biogas, it was found that on an average <br />
1 cum (cubic meters) of biogas is produced by excreta of 35 people/day<br />
(Jha 2005).<br />
13. 1600 cum of biogas is produced by 20 tonnes of biomass waste. <br />
(MNRE 2006)<br />
14. 1 cum of biogas generates 4.7 kWh (NABARD 2007). 1 kWh is generated<br />
by 0.21 cum of biogas.<br />
15. The current delivery cost of Solar PV is Rs. 18.44 kWh.<br />
16. The current delivery cost of Wind is 4.5 Rs./kWh with 4.5% escalation.<br />
17. The current delivery cost of Biomass is 4.2 Rs./kWh with 1.2% escalation.<br />
18. The current cost of delivery for proposed hybrid system is considered to be<br />
same as that of the Solar Wind hybrid: 9 Rs./kWh (DST 2011)<br />
On the basis of the above assumptions, we have developed four scenarios for<br />
simulating payback and comparing the proposed model with individual<br />
technologies. We now calculate the Power Plant’s Capacity required meeting the<br />
local energy demand in each of these scenarios.<br />
Case I: All the Energy Demand is met by Local Solar PV Power Plant<br />
Installation<br />
Calculations:<br />
• 1 kWp of Solar PV generates 3.5 – 4.5 units (kWh)/day. (DOT 2008)<br />
• Average units generated / day = 4 kWh<br />
• Total requirement in our model = 90.9 kWh<br />
• => Capacity of Solar PV to be installed = 90.9/4 = 22.7 ~ 23 kW
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