Example list of appliances and power consumption for 3-day cabin using several modern AC appliances, generator for well pump
| Appliance AC |
watts |
# in use |
hours \ day |
days \ week |
average watts \ day |
| |
| Vacuum |
1200 |
1 |
0.5 |
1 |
89 |
| Cell phone charging |
3 |
1 |
12 |
3 |
15 |
| Satellite system (turn off when not in use) |
30 |
1 |
3 |
3 |
39 |
| TV (turn off remote when not in use) |
100 |
1 |
2 |
2 |
57 |
| Stereo |
55 |
1 |
2 |
2 |
31 |
| Ceiling Fan |
50 |
1 |
3 |
3 |
64 |
| Lights (compact fluorescent) |
20 |
4 |
4 |
3 |
137 |
| Microwave (0.6 to 0.8 cu.ft.) no digital display |
800 |
1 |
0.5 |
3 |
171 |
| Coffee maker (brewing) |
1200 |
1 |
0.1 |
3 |
51 |
| Coffee maker (warming) |
600 |
0 |
(use Carafe) |
0 |
| Toaster |
1200 |
1 |
0.1 |
3 |
51 |
| Sanders, drill, misc. power hand tools |
400 |
1 |
0.5 |
1 |
29 |
| Blenders, Mixers, Misc. Kitchen |
400 |
1 |
0.5 |
1 |
29 |
| Well pump 240 VAC |
2400 |
0 |
(use generator) |
0 |
| Pressurizing Pump (Dankoff flowlight) |
400 |
1 |
0.9 |
3 |
154 |
| |
| Total |
8858 |
continuous |
915 |
| |
kWh monthly |
28 |
|
300-watt Solar PV System
with true sine wave inverter for an off-grid seasonal 3-day -weekend cabin requiring about 28 kWh monthly.
- 300 watts PV (solar electric)
- OutBack Inverter Power Panel with single inverter for 3500 watts continuous at 120 VAC output
- AC & DC Disconnect Enclosures
- Breakers
- Shunt
- Busses
- Inverter ByPass
- Mate for programing
- Battery Temperature Sensors
- PV Combiner Box
- MPPT Solar Charge Controller
- Array & Charge Controller Disconnects
- PV Array Mount, Adjustable
- 8 T-105 Batteries (6-volt, 225 Amp-Hours) for about 3 days autonomy
- Digital Battery Volt Meter
- Meter Wire to house
- Insulated Battery Box
- Lightening Surge Protector
- PV Output Cable and Conduit
- Grounding Package
- 10-ft 4/0 Bettery Cables
- Battery connects
Equipment: $7,260 to $11,100
- Trip charges to remote location
- Install PV Array, output cable, and conduit
- Mount PV Array rack
- Mount and wire PV Array
- Grounding
- Install and wire Inverter Charge Controller and Battery Bank
- Permit
- Sales tax
Instalation: $3,350 to $6,250
Not included:
- Excavation and trenching
- Main AC Breaker Panel
- House Wiring
- Equipment room or shed
- Backup Generator
- Generator balancing Transformet
- etc.
Prices Subject to Change Without Notice. |
