The Electrical and Power System is responsible for generating, regulating, and distributing the power throughout the CubeSat bus. The chosen component for the EPS module is the EnduroSat EPS 1 Plus

Budget

• Nominal

Subsystem	Component	Power [mW]	Time [h]	Energy [mWh]
COMMS	Transceiver	82.5	0.85	70
C&DH	OB	460	0.85	391
ADCS	Gyroscope x3	12	0.85	10
Payload	Camera x2	3000	0.00	0
Power	EPS	75	0.85	64
Power	Solar Panels (Production)	2300	0.85	1955
			Consumed	535.08
			Produced	1564

• Transmitting

Subsystem	Component	Power [mW]	Time [h]	Energy [mWh]
COMMS	Transceiver	1340	0.15	172.5
C&DH	OB	460	0.15	69
ADCS	Gyroscope x3	12	0.15	1.8
Payload	Camera x2	3000	0.00	0
Power	EPS	75	0.15	11
Power	Solar Panels (Production)	2300	0.15	345
			Consumed	254.55
			Produced	276

• Imaging

Subsystem	Component	Power [mW]	Time [h]	Energy [mWh]
COMMS	Transceiver	82.5	0.001	0.0825
C&DH	OB	460	0.001	0.46
ADCS	Gyroscope x3	12	0.001	0.012
Payload	Camera x2	3000	0.001	3
Power	EPS	75	0.001	0.075
Power	Solar Panels (Production)	5631	0.001	5.631
			Consumed	362.95
			Produced	184

• Eclipse

Subsystem	Component	Power [mW]	Time [h]	Energy [mWh]
COMMS	Transceiver	82.5	0.5	41.25
C&DH	OB	460	0.5	230
ADCS	Gyroscope x3	12	0.5	6
Payload	Camera x2	3000	0.00	0
Power	EPS	75	0.5	38
Power	Solar Panels (Production)	5631	0.00	0
			Consumed	314.75
			Produced	0

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Parts List

Solar Panels (Will be custom made)

[Solar Panel Info for custom building]

General Info (for bought panels, use as example)

• Each panel has two solar cells on it, and a total of 16 cells will be used. Therefore, 8 panels will be used on the CubeSat. Of the 8 panels, 7 will be regular X/Y panels, and 1 will be X/Y RBF (it contains the release before flight pin)
• Power Generation: Each Panel can generate a maximum of 2.4 W. At best case, we would have 4 panels facing the sun at a 45o angle and this would generate 6.788 W
• Weight: 44g (for X/Y Panel) 45 g (for X/Y RBF Panel)
• Total Weight: 353 g
• Temperature Range: -55 C to 125 C
• Size: 86.2 x 98 mm

EPS Board (PCB and Battery)

[EPS Board Specifications]

General Info

• Mass: 208 g (including one battery pack – 292 g including two battery packs)
• Temperature limits: -40 C to 150 C
• Battery: 10.2 Wh (for one battery pack)
• Bus Voltage: 3.3 or 5 V
• Size: 91.5 x 95.9 x 21.2 mm

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*Note: As teams come up with design details, it is important to consult with the EPS team to ensure enough power can be delivered to the device under consideration. The factors going into this are Wattage needed, Time the device is on (whether that be nominal state, or other), and the Voltage required for use.