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Solar – DC Inverter-less UPS
powering a billion dreams…
Cygni – Solar-DC solution CYGNI, an Incubatee of IIT-Madras Incubation Cell and Rural Technology
Business Incubator of IIT-Madras.
CYGNI in collaboration with IIT Madras has developed the high efficiency Solar-DC solution.
The Solar-DC Inverter-less UPS is a power back-up solution. This replaces the existing Inverter used in homes.
This innovative technology results in significant reduction the power back-up cost, almost 30-40% lower cost than the exiting Inverters used in the market.
The DC solution seamlessly integrates Solar, so that additional solar power can be added incrementally based on the customer need.
Due to Energy Efficient DC equipments, the customer monthly power bill also gets reduced by 50%, which unlike in inverters, increases the cost of power bill.
Owning and managing the solar supply chain, places CYGNI in a niche position to pass significant savings to our customers.
CYGNI has an experience of system integration projects include rooftop systems and decentralized applications.
Why Inverterless?
Solar PV gives DC Power But load is AC Needs a DC-AC convertor
Now if we add a battery Battery stores only DC
Require a AC-DC convertor for charging
Require a DC-AC convertor during discharging
For low power, each convertor* can have 10 to 15% loss Solar with battery may have 25 to
45% loss
DC-AC
AC-DC DC-AC
battery
Load AC
grid
Solar DC
PCU / Inverter
DC Advantage Basic Home Loads are moving to DC
Electronics devices work on low-voltage DC TV (LED/LCD), laptops. Cell-phones, speaker-phones, tablets, speakers AC to DC conversion has losses from 20% to 50% in each device
Refrigerators, air-conditioners, washing machine moving to BLDC motors
Equipment AC (Watts) DC (Watts)
Fan At Full Speed (Speed 5) 72 30
At Min. Speed (Speed 1) 60 9
Tube Light At Full Intensity (Level 5) 40 18
At Low Intensity (Level 1) NA 5
CFL vs DC Bulb 18 5
Cygni’s Inverter-less UPS
48V DC line as an additional power line at home
Highly power-efficient usage of Solar
Low-power from grid alone converted from AC-DC Designed to have minimal
loss
Battery can be added with higher efficiency (no convertors), if required
AC-DC
battery
Load grid
Solar
48VDC
48VDC
48VDC
High efficiency AC-DC conversion
Inverter-less UPS
Solar DC by IITM
Cygni’s Inverter-less UPS
AC line (Optional)
Emergency line
AC power (Optional)
Battery
Solar Panel
48V DC equipments
Inverter-less Controller: Deployment Schematic
Main DC line
main controller DPAU-L
GA- Grid available GU- Grid unavailable
INVERTER (Optional)
Emergency Line
Normal Line
Relay
Bluetooth interface
GA GU
AC Loads
Keypad interface for recharge
Inverter-less Controller – Block Diagram
Cygni’s Inverter-less Controller Patented Integrated Controller with Solar and Battery Main DC line to power all equipments Emergency Line which supplies power to minimal appliances in the event
of ‘battery low’ conditions. Optional AC Power output to power AC appliances High efficiency Seamlessly integrates solar, grid and battery Smart Load Control Prioritized source selection Remote monitoring and management DC digital metering - 0.5 class accuracy Intelligent Solar MPPT control Optional AC Power output to augment Protection against under-voltage, foreign-voltage and over-voltage
conditions.
DC Fan Specifications
Equipment AC
(Watts) DC
(Watts)
Fan At Speed 5 72 30 At Speed 1 60 9
BLDC (Brushless DC) motor based. Highly Efficient Power bill reduced by half ! Remote Control for Fan (5 speed, ON/
OFF) 24 Months Warranty Multiple Manufacturers (Crompton,
TVS etc) Excellent Service Support
LED Tube Light Specifications
Equipment AC
(Watts) DC
(Watts)
DC Tube Light
At Full Brighness (Level 5) 40 18 At Min.
Brightness (Level 1) NA 5
CFL vs DC Bulb 18 5
High Energy Efficiency DC LED Tube Light
Remote Control for Dimming (5 speed, ON/OFF)
Power bill reduced by half ! 24 Months Warranty High reliability as AC-DC
conversion is avoided. Excellent Service Support
DC Mobile Charger & Socket
DC Mobile Charger Socket for additional DC
appliances (LED TV, Laptop, Electronic Gadgets)
High Efficiency Charger USB Socket for Mobile
Charging
1BHK OGH-D (600VA Inverter Equivalent w/o Solar)
Equipment Description Quantity OGH Unit Inverter-less Smart
Kit 1 Nos
DC Fan (with remote) 1200 mm sweep, ceiling fan
1 No.
DC Tube light (with remote)
Equivalent of regular tube light
1 No.
DC Bulb Equivalent of 18W CFL
1 No.
DC Socket and Charger
For mobile charging 1 No.
Battery (with cables and lugs)
4 Hrs back-up 12Ah @48V
Offer Price: Rs. 14,950
2BHK OGH-D (800VA Inverter Equivalent w/o Solar)
Equipment Description Quantity OGH Unit Inverter-less Smart Kit 1 Nos DC Fan (with remote) 1200 mm sweep, ceiling
fan 2 Nos.
DC Tube light (with remote)
Equivalent of regular tube light
2 Nos.
DC Bulb Equivalent of 18W CFL 2 Nos. DC Socket and Charger For mobile charging 2 Nos. Battery (with cables and lugs)
4 Hrs back-up 20Ah @48V
Offer Price: Rs. 23,950
1BHK OGH-S (600VA Inverter Equivalent with Solar)
Equipment Description Quantity OGH Unit Inverter-less Smart Kit 1 Nos Solar PV (with cables) Custom Solar-DC Module 125 Wp DC Fan (with remote) 1200 mm sweep, ceiling fan 1 No. DC Tube light (with remote)
Equivalent of regular tube light
2 Nos.
DC Bulb Equivalent of 18W CFL 2 Nos. DC Socket and Charger
For mobile charging 1 No.
Battery (with cables and lugs)
4 Hrs back-up 20Ah @ 48V
Mounting System 1 Set
Offer Price: Rs. 29,950
1BHK OGH-SA (600VA Inverter Equ. with Solar, AC output)
Equipment Description Quantity OGH Unit Inverter-less Smart Kit 1 Nos Solar PV (with cables) Custom Solar-DC Module 125 Wp DC Fan (with remote) 1200 mm sweep, ceiling fan 2 Nos. DC Tube light (with remote)
Equivalent of regular tube light 2 Nos.
DC Bulb Equivalent of 18W CFL 2 Nos. DC Socket and Charger For mobile charging 1 No. Battery (with cables and lugs)
4 Hrs back-up 20Ah @48V
Mounting System 1 Set AC output 125 Watts
Offer Price: Rs. 34,950
2BHK OGH-S (800VA Inverter Equivalent with Solar)
Equipment Description Quantity OGH Unit Inverter-less Smart Kit 1 Nos Solar PV (with cables) Custom Solar-DC
Module 250 Wp
DC Fan (with remote) 1200 mm sweep, ceiling fan
3 Nos.
DC Tube light (with remote)
Equivalent of regular tube light
3 Nos.
DC Bulb Equivalent of 18W CFL 3 Nos. DC Socket and Charger For mobile charging 2 Nos. Battery (with cables and lugs)
4 Hrs back-up 42Ah @48V
Mounting System 1 Set
Offer Price: Rs. 59,950
2BHK OGH-SA (800VA Inverter Equ. with Solar, AC output)
Equipment Quantity OGH Unit Inverter-less Smart Kit 1 No Solar PV (with cables) Custom Solar-DC
Module 250 Wp
DC Fan (with remote) 1200 mm sweep, ceiling fan
3 Nos.
DC Tube light (with remote)
Equivalent of regular tube light
3 Nos.
DC Bulb Equivalent of 18W CFL 3 Nos. DC Socket and Charger For mobile charging 2 Nos. Battery (with cables and lugs)
4 Hrs back-up 42Ah @48V
Mounting System 1 Set AC output 250 Watts
Offer Price: Rs. 64,950
Smart Kit – Load Chart Summary
1 BHK 2 BHK System OGH-1D OGH-1S OGH-1SA OGH-2D OGH-2S OGH-2SA
Tubelight 1 2 2 2 3 3
Bulb 1 2 2 2 3 3
Remote 1 1 1 2 3 3
Fan 1 1 2 2 2 3
Charger 1 1 1 2 2 2
TV (27” or less) - - 1 - - 2
Inverter-less Solar-DC Smart Kits
1 BHK 2 BHK System OGH-1D OGH-1S OGH-1SA OGH-2D OGH-2S OGH-2SA
Solar PV Capacity
- 125 Wp 250 Wp - 250 Wp 250 Wp
AC Power Input
125 W 125 W 125 W 125 W 250 W 250 W
Battery Capacity @48V
12AH 20AH 20AH 20AH 42AH 42AH
AC Power Output
- - 125 W - - 250 W
Inverter-less –Costing Summary 1 BHK 2 BHK
System OGH-1D OGH-1S OGH-1SA OGH-2D OGH-2S OGH-2SA
Tubelight 1 2 2 2 3 3
Bulb 1 2 2 2 3 3
Remote 1 1 1 2 3 3
Fan 1 1 2 2 2 3
Charger 1 1 1 2 2 2
TV (27” or less) - - 1 - - 2 Total Cost*
14,950 29,950 34,950 23,950 59,950 64,950
*Cost inclusive of DC equipments like fans, lights as per above *Taxes and Transportation extra
Thank you Contact: www.cygni.com; email: [email protected]