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 Sundanzer System Sizing

Step 1

Determine Watt hours / day Energy Use

Step 2

Determine System Size

 

SunDanzer Model

Sun  hr.

3

4

5

6

 

Ambient

5.8 cu ft

DCR165

8 cu ft

DCR225

5.8 cu ft

DCF165

8 cu ft

DCR225

Energy

Use

Watts

PV

Watts

PV

Watts

PV

Watts

PV

Battery Size

Temp oF/C

Refrigerator 38oF / 3 oC

Freezer 10 oF / 12 oC

 

 

 

 

 

Amp Hrs

@ 12/24 V

70 / 21

117

135

407

541

100

63

48

38

32

74 / 37

72 / 22

124

145

422

559

120

76

57

46

38

89 / 45

74 / 23

133

157

439

578

140

89

67

53

44

104 / 52

76 / 24

143

169

459

600

160

102

76

61

51

119 / 60

78 / 26

155

184

480

623

180

114

86

69

57

133 / 67

80 / 27

168

199

505

647

200

127

95

76

63

148 / 74

82 / 28

182

216

531

674

220

140

105

84

70

163 / 82

84 / 29

198

234

560

702

240

152

114

91

76

178 / 89

86 / 30

215

253

591

732

260

165

124

99

83

193 / 97

88 / 31

233

274

625

764

280

178

133

107

89

207 / 104

90 / 32

253

296

661

797

300

190

143

114

95

222 / 111

92 / 33

274

320

699

833

350

222

167

133

111

259 / 130

94 / 34

296

344

739

869

400

254

190

152

127

296 / 148

96 / 36

320

370

782

908

450

286

214

171

143

333 / 167

98 / 37

345

398

828

948

500

317

238

190

159

370 / 185

100 / 38

371

426

875

990

550

349

262

210

175

407 / 205

102 / 39

399

456

925

1034

600

381

286

229

190

444 / 222

104 / 40

428

487

977

1080

650

413

310

248

206

481 / 240

106 / 41

458

520

1032

1127

700

444

333

267

222

519 / 260

108 / 42

490

554

1089

1176

750

476

357

286

238

556 / 278

110 / 43

523

589

1148

1227

800

508

381

305

254

593 / 297

Battery Sized for 4 days (50% depth of discharge.)

The Design Ambient Temperature is the maximum average weekly temperature that the cabinet is expected to operate in. If during a warm week the daily high is 100F  and the daily low is 80F, then then design ambient is 90F.

Example: DCR165- 5.8 cu.ft. refrigerator at 84F = 198 Watt-hrs/day
                In a 5 sun-hr/day region, you need at least 76 Watts of PV
                (rated) and a 148 Amp-hr battery (12 V).

850

540

405

324

270

630 / 315

900

571

429

343

286

667 / 334

950

603

452

362

302

704 / 352

1000

635

476

381

317

741 / 371

1050

667

500

400

333

778 / 389

1100

698

524

419

349

815 / 408

1150

730

548

438

365

852 / 426

1200

762

571

457

381

889 / 445

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Last modified: March 01, 2017