Design and Characterization of PV Minigrid Plants for Modern Farming and Rural Electrification in Rwanda

Table 2

Load requirement at three considered sites.

(a) Gishuro

(b) Gashanga

(c) Kageyo

S/N

Equipment

Qty

Tot number of items

Unit power (watt)

Time/day; (hour)

Tot energy/day; (Wh/day)

Qty

Tot number of items

Unit power (watt)

Time/day; (hour)

Tot energy/day; (Wh/day)

Qty

Tot number; of items

Unit power (watt)

Time/day; (hour)

Total energy/day(Wh/day)

1

Lighting (lamps)

L.in: 6; L.out: 2

L.in: 1398; L.out: 466

L.in: 15; L.out: 18

L.in: 5; L.out: 10

188730

L.in: 5; L.out: 2

L.in: 1600; L.out: 640

L.in: 12; L.out: 15

L.in: 5; L.out: 10

192000

L.in: 5; L.out: 2

L.in: 1500; L.out: 600

L.in: 12; L.out: 15

L.in: 5; L.out: 10

180000

2

Entertainment (TVs and radios)

Tvs: 1; Radn: 1

Tvs: 233; Radn: 233

Tvs: 100; Radn: 50

Tvs: 6; Radn: 4

186400

Tvs: 1; Radn: 1

Tvs: 160; Radn: 320

Tvs: 100; Radn: 50

Tvs: 6; Radn: 4

160000

Tvs: 1; Radn: 1

Tvs: 150; Radn: 300

Tvs: 100; Radn: 50

Tvs: 6; Radn: 4

150000

3

Libraries (printers, scanners)

Pt: 1; Scn: 1

Pt: 20; Scn: 20

Pt: 20; Scn: 40

Pt: 0.5; Scn: 0.5

600

Pt: 1; Scn: 1

Pt: 10; Scn: 10

Pt: 20; Scn: 40

Pt: 0.5; Scn: 0.5

300

Pt: 1; Scn: 1

Pt: 10; Scn: 10

Pt: 20; Scn: 40

Pt: 0.5; Scn: 0.5

300

4

Charging electronic gadgets (laptops, phones)

Lap: 1; Phn: 2

Lap: 233; Phn: 466

Lap: 25; Phn: 5

Lap: 12Phn: 1

72230

Lap: 1; Phn: 2

Lap: 160; Phn: 640

Lap: 25; Phn: 5

Lap: 12; Phn: 1

51200

Lap: 1; Phn: 2

Lap: 150; Phn: 600

Lap: 25; Phn: 5

Lap: 12; Phn: 1

48000

5

HVAC (fans, air conditioners)

Fn: 2; AC: 1

Fn: 466; AC: 233

Fn: 100; AC: 3500

Fn: 2; AC: 1

908700

Fn: 2; AC: 1

Fn: 640; AC: 160

Fn: 100; AC: 3500

Fn: 2; AC: 1

688000

Fn: 2; AC: 1

Fn: 600; AC: 150

Fn: 100; AC: 3500

Fn: 2; AC: 1

645000

6

Kitchen appliances (fridges, microwaves, cooking stoves, kettles, juicers, blenders)

Kt: 1; Fg: 1; Mw: 1; Costv: 2; Jc: 1; Blnd: 1

Kt: 233; Fg: 233; Mw: 233; Costv: 466; Jc: 233; Blnd: 233

Kt: 1000; Fg: 150; Mw: 1000; Costv: 3000; Jc: 200; Blnd: 300

Kt: 0.25; Fg: 18; Mw: 0.5; Costv: 0.5; Jc: 0.25; Blnd: 0.25

1415475

Kt: 1; Fg: 1; Mw: 1; Costv: 2; Jc: 1; Blnd: 1

Kt: 320; Fg: 320; Mw: 160; Costv: 640; Jc: 1; Blnd: 320

Kt: 1000; Fg: 150; Mw: 1000; Costv: 3000; Jc: 200; Blnd: 300

Kt: 0.25; Fg: 18; Mw: 0.5; Costv: 0.5; Jc: 0.25; Blnd: 0.25

1246400

Kt: 1; Fg: 1; Mw: 1; Costv: 2; Jc: 1; Blnd: 1

Kt:300Fg:300Mw:150; Costv:600; Jc:300; Blnd:300

Kt: 1000; Fg: 150; Mw: 1000; Costv: 3000; Jc: 200; Blnd: 300

Kt: 0.25; Fg: 18; Mw: 0.5; Costv: 0.5; Jc: 0.25; Blnd: 0.25

1897500

7

Cleanliness (washing machines, irons)

W.m: 1; Ir: 1

W.m: 233; Ir: 233

W.m: 2400; Ir: 1100

W.m: 0.5; Ir: 0.25

343675

W.m: 1; Ir: 1

W.m: 320; Ir: 320

W.m: 2400; Ir: 1100

W.m: 0.5; Ir: 0.25

472000

W.m: 1; Ir: 1

W.m: 300; Ir: 300

W.m: 2400; Ir: 1100

W.m: 0.5; Ir: 0.25

442500

8

Farming (batteries for E-tractors, irrigation, other farming activities)

B-E: 24; Ign: 1; F.A: 1

B-E: 24; Ign: 1; F.A: 1

B-E: 4800; Ign: 25750; F.A: 12450

B-E: 1; Ign: 1; F.A: 1

153400

B-E: 24; Ign: 1; F.A: 1

B-E: 24; Ign: 1; F.A: 1

B-E: 4800; Ign: 28100; F.A: 11160

BE: 1; Ign: 1.00; F.A: 1.00

154460

B-E: 24; Ign: 1; F.A: 1

B-E: 24; Ign: 1; F.A: 1

B-E: 4800; Ign: 23400; F.A: 11160

B-E: 1; Ign: 1.00; F.A: 1.00

46080

9

Common village use (common market, bar and restaurants, hair salons, community workshops)

Cmt: 1; B&R: 1; H.Sln: 3; CWps: 1

Cmt: 1; B&R: 1; H.Sln: 3; CWps: 1

Cmt: 1620; B&R: 6910; H.Sln: 4410; CWps: 37000

Cmt: 6; B&R: 586; H.Sln: 6.4; CWps: 3.15

251434.6

Cmt: 1; B&R: 1; H.Sln: 3; CWps: 1

Cmt: 1; B&R: 1; H.Sln: 3; CWps: 1

Cmt: 1620; B&R: 6910; H.Sln: 4410; CWps: 37000

Cmt: 6; B&R: 5.86; H.Sln: 6.40; CWps: 3.15

25134.6

Cmt: 1; B&R: 1; H.Sln: 3; CWps: 1

Cmt: 1; B&R: 1; H.Sln: 3; CWps: 1

Cmt: 1620; B&R: 6910; H.Sln: 4410; CWps: 37000

Cmt: 6; B&R: 5.86; H.Sln: 6.40; CWps: 3.15

251434.6

10

Food processing and storage (food storages, butchers, MCCs)

F.S: 1; Bu: 1; Mcc: 1

F.S: 1; Bu: 1; Mcc: 1

F.S: 4600; Bu: 2765; Mcc: 25500

F.S: 13.33; Bu: 2.82; Mcc: 11.41

360070.3

F.S: 1; Bu: 1; Mcc: 1

F.S: 1; Bu: 1; Mcc: 1

F.S: 4600; Bu: 2765; Mcc: 25500

F.S: 13.33; Bu: 2.82; Mcc: 11.41

360070.4

F.S: 1; Bu: 1; Mcc: 1

F.S: 1; Bu: 1; Mcc: 1

F.S: 4600; Bu: 2765; Mcc: 25500

F.S: 13.33; Bu: 2.82; Mcc: 11.41

360070.3

Total load

3,997,214.90

4,353,465

4,124,564.90

Abbreviations: L.in: lamp inside house; L.out: lamp outside house; Radn: radios; Pt: printers; TVs: televisions; Scn: scanners; Lap: laptop; Phn: phones; Fn: fans; AC: air conditioners; Kt: kettles; Fg: fridges; Mw: microwave; Costv: cooking stove; Jc: juicers; Blnd: blenders; W.m: washing machine; B-E: batteries for E-tractors; Ir: iron; Ign: irrigation; B&R: bar and restaurant; Cmt: common market; H.sln: hair salons; CWps: community workshops; F.S: food storages; Bu: butchers; Mcc: milk collection center.