Solar Power vs Natural Gas CNG LNG RLNG LPG

1. RLNG LNG CNG Natural Gas vs
Solar Comparison
By : Khawar Nehal
Date : 29 August 2019
Tawanai Energy
http://atrc.net.pk

2. Gas Prices
SSGC max price for industrial :
All off-takes at flat rate of Rs. 1,283.00 per
MMBTU
Source :
https://www.ssgc.com.pk/web/?page_id=106

3. MMBTU to Cubic Feet
MMBTU = 1 million BTUs
CCF = 100 Cubic Feet
1 Cubic Foot = 1027 BTUs
(Hacked/Jugar conversion)

5. MMBTU to Cubic Feet
100 KW full load = 1308 Cubic Feet per hour
Notice the generator 1 Cubic Foot = 1015 BTUs
(Hacked/Jugar conversion)
1 KWH = 1308/100 = 13.08 Cubic Feet of gas.

6. MMBTU to Cubic Feet
Rs 1283 per MMBTU = Rs 1.283 per 1000 BTU
Rounding 1 Cubic Foot = 1000 BTU.
This means Rs 1.283 per 1 Cubic Foot approx.
1 KWH = 13.08 Cubic Feet = Rs 1.283 x 13.08 =
Rs 16.78 per KWh. About Rs 17 per KWH.

7. Solar
Solar provides 5 KWh per day for every 1000
watts installed.
5 KWh per day = Rs 16.78 x 5 = Rs 83.9 per day
saved.
If solar costs Rs 120 per watt then Rs. 120,000
shall be paid back in 120,000/83.9 = 1430 days.
This is 47.67 months = About 4 years.

8. Natural Gas vs Solar Comparison
By : Khawar Nehal
khawar@atrc.net.pk
+92 331 2036 422
Date : 29 August 2019
Tawanai Energy
http://atrc.net.pk