Shtigen presents solar energy potential and solutions in Armenia: solar water heaters, PV panels, suitable for both residential houses and commercial/public buildings and businesses.
3. About Shtigen
Shtigen’s goal is to harness the positive aspects of renewable
energy and transfer its attributes into an energy independent
Armenia for future generations to come.
4. 2009-11: market research
2012-13: residents, small
hotels
2014 - Expansion:
residents, large hotels
(Diana), Ministry of Defense,
ACBA bank
2015 - Developments:
Ministry of Defence, Writers’
House, Tufenkian, ACBA
Leasing, Wind Turbine, PV
Our Path
5. Projects: Residential
12 installations/Basen village
Gyumri Hrazdan
15 installations/Vanahovit district, Yerevan Davitashen, Yerevan
More details here: http://shtigen.com/en/our-installations
Tsaghkadzor
6. “Tufenkian” Hotel, Yerevan “Park Avenue” Hotel, Jrvezh, Yerevan
Swimming pool, Vanadzor Ararat, Ministry of Defense “Diana” Hotel, Goris
“Alva” Hotel, Tsaghkadzor
Projects: Commercial
More details here: http://shtigen.com/en/our-installations
8. Sunrain: Solar Water Heaters
80% of global SWH installations are in China;
Sunrain – No1 SWH provider in China
Shtigen – Exclusive Rep. for Sunrain in Armenia
Solar water heater installations
worldwide, 2007
10. Solar Heating
Basics:
Hot water always rises to the top: convection;
No heat exchange occurs within vacuum.
11. Vacuum SWH Features
Payback starts from 3 years
Works under frost conditions of -30 Co, not damaged even by direct
hit of 3cm of hail
Individual installation, lower operational costs
Compatible with previously installed systems
Thermal Energy for heating systems is possible, but not economically
viable, unless there is a increase in summer demand (e.g. swimming
pool)
5 year product warranty, 20 year product life span
Leasing: 10.5% in AMD, 10-20% prepayment, 5 years maturity
1 year free system service
12. Calculation: Why Not Heating?
0
20,000
40,000
60,000
80,000
100,000
120,000
140,000
160,000
գազի ծախս
օգտ. Էներ.
N
Price Estimate
product qty price amount
1 SWH panel 300 8300 2 490 000
2 Controller 1 130 000 130 000
3 Boiler* 1 800 000 800 000
4 Circulating pump* 1 80 000 80 000
5 Other 0
6 Expansion tank 1 80 000 80 000
7 Total equipment 3 580 000
8 Materials 15% 537 000
9 Unexpected costs** 5% 179 000
10 Labour** 10% 358 000
11 Total installation 1 074 000
12 Total 4 654 000
13 Total price estimate 4 654 000
Payback calculations
Solar vacuum tubes 300
Surface of 1 tube, sq.m 0,080
Absorbing surface, sq.m 24,1
Annual solar radiation, kWt/h/m2 2 397
Avg. annual efficiency% 75%
Thermal energy provided, annual, kWt/h 43 338
Efficiency of gas boiler 85%
Gas price per 1 m3 , AMD 156
Heat capacity of 1 m3 of gas, kWt/h 8
Equivalent gas cost, AMD/year 994 218
Utilized energy 745 305
Waste energy 248 913
Simple payback period pf the system, years 6,2
Avg cost Gas cost Useful energy
Oct 50 000 50 000
Nov 130 000 47 821
Dec 150 000 36 183
Jan 150 000 44 940
Feb 150 000 58 883
Mar 150 000 80 086
Apr 130 000 92 646
May 130 000 104 746
Jun 50 000 50 000
Jul 60 000 60 000
Aug 60 000 60 000
Sep 60 000 60 000
Avg 105 833 62 109
Total 1 270 000 745 305
13. Solar Power
Basics:
Under sunlight the semiconductor generates electricity
Electricity is transformed to the grid parameter via inverter
Net metering allows to use the grid as a virtual battery by
supplying excess electricity to the grid and receiving it back
when necessary. Excess electricity as of December 31 is
purchased at 50% of the retail electricity tariff
14. PV Features
• Payback starting from 7 years, in case of Net metering;
• Full energy independence in case of using an air conditioner for home
heating (no natural gas cost) during Net metering;
• Installation does not require any changes to the existing grid,
installation of а special meter needed only;
• Occupied area: 7-8 sq.m for 1kWh of capacity;
• Individual installation, low operational costs;
• 25-year power warranty and 10-year inverter warranty;
• Possibility of online supervision and optimization of system
performance;
• Leasing: annual 10.5% in AMD, 10-20% prepayment, 7 years;
• 1 year free post purchase service.