DiyaStar® DIRECT FROM SUNLIGHTING SYSTEM

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CONVENTIONAL SOLAR ARRANGEMENTS• Solar Panel Powered System

– PV Panels charges battery which powers a UPS system.

– Output is 230V AC to mesh with existing wiring.

• LED Lighting – Integrates with standard

lighting (230V AC)– Replaceable fixtures like T5

Tube lights, LED Bulbs, etc

• Solar Water Heating using evacuated tubes

ENERGY EFFICIENT ENHANCEMENTS• Solar Panel Powered System

– Conventional PV system with UPS with 230V AC.

– Additional DayStar® System for daytime illumination of dark spaces – system independent of Battery based UPS

• LED Lighting – Operates directly from Solar

through DayStar® system.– DC Based Fixtures.– Remotely Switching of lights.

• Solar Water Heating using evacuated tubes

• Biogas 0.25 M3• Solar Water Pump

Solar OnGrid On

PV Sense

Switches Panel

LED Luminaire

Electric Grid

Power

Photo Voltaic Panel

Panel Sensor

IR Sensor for Remote Switching of Luminaire Fixtures

Manual Switching of Luminaire Fixtures including Fan

LED Luminaire

Legend

DC Solar Power In

AC Grid Power In

DC/AC Power Out

Concept

12V DC 12V DC

12V DC12V DC

230 V AC

Panel Switcher

PV Sense

Calibrated PV Panel (CPVP)

Panel SwitcherMain PV

Panel

Switches Panel

Product DescriptionThe DiyaStar® Panel Switcher comprises of a Calibrated Photo Voltaic Panel (CPVP) and the PV Sense. The CPVP senses the luminosity (solar insolation) and passes the signal to the PV Sense.

Models & AmpacityDiyaStar Panel Switcher -7 - 7 Amps Max LoadDiyaStar Panel Switcher-20 - 20 Amps Max Load

How to ConnectThe DiyaStar® Panel Switcher is basically a switch that interposes between the Main Solar Panel Bank and the point of use.

To connect , the positive output from the Main PV Panel is connected to the PV Sense. The output from the PV Sense is then connected to the Switches Panel.

See the schematic diagram…

The CPVP may be an independent unit or may come integrated with a Master PV Panel supplied by any Solar Panel Manufacturer as a special PV Panel.

The PV Sense is an all weather proof box with a control knob for adjusting the required luminosity based on user preference. While deploying, it should be protected from direct sun and rain by locating it behind the CPVP.

LAYOUT

Panel Switchers

Switches Panels

Switches Panel Main PV Panel

Product DescriptionThe DiyaStar® Switches Panel has a controller which is continually, monitoring the input from the Solar Panel through the DiyaStar Panel Switcher. As soon as the Panel Switcher disconnects the Solar Power input, the Switches Panel sensor automatically switches the load to the Grid Power thereby providing uninterrupted lighting.

ModelsDSSP-B : This is a basic model. At the heart is an automatic switcher from Solar to Grid based on input from the Panel Switcher. In addition, an AC to DC Driver (of an appropriate Ampacity) is required to be connected to the circuit.

DSSP-R1 to R8 : These are remote Switching models from 1 switch to multiple switches. The AC to DC Drivers are encapsulated within.

How to ConnectThe DiyaStar® Switches Panel is connected like a regular electrical switch board with minor changes.

The thickness of the wires are required to be based on ampacity pattern (later in this presentation).

To connect , the output from the Panel Switcher is fed into the Switches Panel in the slot provided. Similarly, Grid Power is fed into the appropriate slot.

The output from the Switches Panel is fed to the LEDs and Fans as per Serial numbers given in the out pattern. A flow of connectivity pattern is given in the schematic diagram…

12V DC

230V AC

Switcher Panel

Panel Switcher

12V DC 12V DC

SWITCHER PANEL MODELS WITH REMOTE SWITCHING

DSSP-R3L1F-2S1PDC : Remote 3 Lights and 1 Fan AC : 2 Switches and 1 Plug 135x120X50

DSSP-R3L1FRemote 3 Lights and 1 Fan78x175X50

DSSP-R3L1F-1S1FRemote 3 Lights and 1 FanAC : 1 Switch & 1 Plug 78x205X50DSSP-R3L

Remote 3 Lights78X140X50 Note: In addition to sizes mentioned above, a Switcher Box & AC to DC Convertor will need

to be accommodated . Details are given in the next slide…

SWITCHES BOX – USING STANDARD AVAILABLE CLIP-ON SWITCH BOARDS

DSSP-7Max Load of 7 Amps can be connected to this Switcher. We have a 20 Amps Switcher too. There will be two inputs, one will be from Solar, and the other from the AC to DC Convertor. This switcher will be at the back of the Switches Panels, Remote or without remote. The above picture is of a Switcher with 8 Amp Convertor . Ampacity of the circuit dependent on this switcher box will determine the size of the converter. More about his later…

ThroughSwitches

AC Plug PointDC Fan

DC Lights

Standard Anchor ROMA or CONA Olive

FINALIZATION OF FIXTURES & WIRING CIRCUIT

Refer house design and Excel Sheet…

2x12W1x1.5A 4A

BASEMENT & PARKING

UPS

ATS

5x12W 5A

8x6W2x1.5A 7A

1x12W1A

3x6W2A

1x6W1A

12W

12W12W

12W

12W 12W 12W

12W

12W12W

12W

6W

6W

6W 6W

6W

6W

6W

6W

6W 6W

6W

6W

6W

AC

2x12W1x1.5A 4A

BASEMENT & PARKING

UPS

ATS

5x12W 5A

8x6W2x1.5A 7A

1x12W1A

3x6W2A

1x6W1A

12W

12W12W

12W

12W 12W 12W

12W

12W12W

12W

6W

6W

6W 6W

6W

6W

6W

6W

6W 6W

6W

6W

6W

Auto Switch

Prevent Generator (Optional) Auto Start during day

AC

DC

GROUND FLOOR

FIRST FLOOR

AMPACITY & WIRE SIZINGWire ampacity is the safe amount of current that a wire can handle without getting hot or causing a fire.

In India, electrical contractors use upto 2.5 Sq (mm) wire for lighting circuit and about 4 Sq wire for AEH circuit. Classically they call it 2 Sq or 2.5 Sq or 4 Sq, etc. One LED light, say a 12W luminaire consumes only 1 Amp and therefore even 0.5mm Sq is suitable ahead of a switchboard.

Also see: http://www.hplindia.com/cableandwire.pdf (Use FRLS Cables).

Ampacity is indicated against copper wire being sold in the market. Rating indicated by Finolex, one of the most popular brands is given below:

AMPACITY & WIRE SIZINGISI approved JEYPORE cable in another option. Prices as in Aug 2012 is listed below along with Ampacity.

For LED Lighting, 1 Sq MM Cable is considered adequate for DiyaStar-7 from Rooftop Solar Panel to the Switches Panel.

One LED light, say a 12W luminaire consumes only 1 Amp and therefore, upto 48W LED lights can be connected to 0.5 Sq MM wire.

AMPACITY & WIRE SIZINGJeypore and other companies provide multi core cables.

For DiyaStar-7, for lights ahead of the Switches Panel upto Fans and Lights may be 0.5 Sq MM wires. Since 0.5 Sq MM is thin, where common negative is not avaiable, it may be a good idea to have a 2 Core 0.5 Sq MM cable.

This makes is easy for the electrician to draw wires through conduits as also reduce costs on wiring since he would have otherwise used 1 to 2 Sq MM for wiring.

AMPACITY

2x12W2Amps

8x6W4Amps

1x2.75 Amps= 2.75 Amps

Panel Switchers

Switcher Panels

2x2.75Amps= 5.5 Amps

Models & AmpacityDiyaStar Panel Switcher -7 - 7 Amps Max LoadDiyaStar Panel Switcher-20 - 20 Amps Max Load

1 Sq MM1 Sq MM

0.5 Sq MM 2 Core

0.5 Sq MM 2 Core

1 Sq MM1 Sq MM

0.5 Sq MM 2 Core

WIRING SIZES FOR ONE SWITCH / ROOM(DC Circuit Only)

1 Sq mm

1 Sq mm

1 Sq mm

0.5 Sq mm

DiyaStar Panel Switcher -7

Or better, 2 Core 1 Sq mm

2 Core 0.5 Sq mm

ELECTRICAL DRAWINGS

ELECTRICAL DRAWINGS

• As stated earlier, in India, most electrical contractors do not make electrical drawings. They are just present during the casting of the roof to put pipes within the casting based on verbal briefing of the house owner or by assessing the location of fans and ceiling lights.• Many electrical contractors do not know how an electrical drawing looks like and have

never made any in their lives but have practical experience in implementing electrical wiring and installation.• When you ask them about the type of wire they are going to use for lighting and AEH

circuit, they will use the following terms:• However when you ask them as to what the above terminology means, they are, more

often than not, unaware of what it means, but know that these are standard wires used for residential or office applications. We have however elaborated on this in the previous slide on Ampacity & Wire Sizing so that you are aware of what the implications are.• The slides following this slide are examples of conventional drawings used for

electrification of homes and offices.• It makes sense for keeping a record of electrical drawings so that after many years, when

you will have no trace of the electrical contractor who installed the wiring, these drawings may be of use should you wish to do some electric re assignments.• Just for your information, the DiyaStar DC lighting system does not require any major re-

designing of the conventional electrical wiring systems. Just a basic knowledge is required so that AC loads are not connected to the DC loads in an installation.

EXAMPLES OF ELECTRIFICATION DRAWINGS

Have a good Legend

EXAMPLES OF ELECTRIFICATION DRAWINGSBe innovative !!

Motion Detector Sensor Photo Electric Switch Remote Switch

EXAMPLES OF ELECTRIFICATION DRAWINGS

Smoke DetectorFloor Approved Outlet200 Amp Electrical Panel

SIDE PROFILE ELECTRIFICATION

When designing wiring of a residence, it may be prudent to keep Receptacles (Plug sockets) within the light switch panel so that the risk of children putting fingers in sockets can be avoided. However, if, for aesthetic reasons, it is desired to keep receptacles at lower level, child proof sockets may be used…

SOLARIZATION

STEPS TO BE FOLLOWED FOR SIZING OF SOLAR PANELS

1. Refer excel sheet (download from our DiyaStar® website).

2. Assess Total Amperage.

3. Isolate requirement of DiyaStar® by identifying locations inside the building where DiyaStar® can be used for illumination during the day.

4. Total up the Wattage (this would indicate the total wattage of Solar Panels to be obtained) – say 2KW.

5. Allocate Panel load correction factor, where add 25% to Wattage obtained in previous step (2KW + 500W = 2.5KW).

6. Next allocate an approximate correction factor, assessing if all DiyaStar® connected lights and fans will or will NOT be switched on simultaneously. In the above example, if it is known that only 50% lights may be on at any time, then requirement of Solar PVs can be reduced to 1.25KW only.

7. Now select the Power Pack from the chart on next Slide…

PRICES & SIZING OF SOLAR PACK

Capacity System cost

Subsidy(Subject to approval)

PayableRs (Lakhs)

250W PVsPVs (Nos)

Area Reqd (Ft)

EW NS

1 KW 246,000 73,800 1.72 4 2.5 31.5KW 335,000 100,500 2.35 6 3.75 32 KW 520,000 156,000 3.64 8 5 33 KW 725,000 217,500 5.08 12 7.5 34 KW 1,051,000 315,300 7.36 16 10 35 KW 1,220,000 366,000 8.54 20 12.5 39 KW 2,364,750 709,425 16.55 36 22.5 3

15 KW 3,660,000 1,098,000 25.62 60 37.5 3

• Subsidy approved under JN National Solar Mission.

• Prices may vary between suppliers based on cost of Inverter, accessories, etc…

• List of Accessories for each power pack is given in the next Slide.

LIST OF ACCESSORIES WITH POWER PACK (5 KWA)

Ser Description Qty UOM

1 Solar module – 250Wp , Crystalline 20 Nos

2 Module mounting structure (For Above Qty) 1 Set

3 Junction Box - ABS Plastic 1 Set

4 UPS : PCU (96 VDC, 5kWp, 230V AC,1Phase,5kVA) 1 Nos

5 PVC Cu cable & Accessories 1 Set

6 DC Distribution board and BPP 1 Nos

7 AC Distribution Board 1 Nos

8Battery Bank(LMLA) 96V 400Ah C10 Tubular & Accessories 1 Nos

9 Earthing kit 3 Nos

10 Lightning and over voltage protection 1 Nos

11 Installation Accessories 1 Set

No of Panels and Inverter Capacity will vary with the KW Pack.

POWER CONDITIONING UNIT (PCU) - UPS

• Multiprocessor based Modular Robust design.• Simple & Easy Installation.• Hybrid Inverter Operation, Paralleling option with Wind / DG.• Compliance to International standards.• Fully digital control, to have more scalability and easy upgradability.• 20 years Tropicalised design life.• Enclosure with Integrated PV Array combiner unit.• AC/DC switchgear for protection & isolation, built in output isolation transformer.• Safety standards complying to IEC 62040. Safety to the user is provided by

shrouding high potential points inside the system and• Grid islanding protection.

Notes: DiyaStar® does not need PCU / inverter or batteries. DiyaStar® alternates between Solar and Grid Power with priority to use Solar. If Solar power exists, it powers the luminaries and fans instead of these being driven by grid. If Solar Power is weak or non existent, Grid power takes on automatically. If Solar Power is inadequate and Grid Power is also off, only in such cases will a UPS be useful.

PCU FROM RELIABLE MANUFACTURER

More than 500 Nos PCUs between 10-30 KW deployed since1994

PCU FROM RELIABLE MANUFACTURER

PCU FROM RELIABLE MANUFACTURER

Illuminate your indoors, direct from the Sun!!!

Conventional Solar Option & DiyaStar Option

Concept & Design

Panel Switcher

Switcher Panel

Finalizing Fixtures & Wiring Diagram

Ampacity & Wire Sizing

Understanding Electric Drawings

Sizing Solar Panels

Power Conditioning Unit

Exit

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