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Course Title
100 Home
101 Introduction
102 FAQ Page
103 Course Catalog
104 Green World
105 Demand & Supply
106 Conservation Careers
107 Solar Careers
108 Wind Turbine Careers
109 Entrepreneurs
110 Employee or Employer?
200 Demand Management
201 Summary
202 Residential Energy Profile
203 Ten Conservation Rules
204 HVAC System
205 Kitchen Appliances
206 Water Heater
207 Lighting
208 Laundry Appliances
209 Calculating Savings
300 Renewable Technology
301 Solar Energy
302 Solar Collectors
303 Solar Water Heating
304 Stirling Engines
305 Basic AC-DC Electronics
306 Silicon Solar Panels
307 Thin Film Solar Panels
308 Wind Turbines
309 Inverters
310 Grid Tied and Off Grid
311 Solar Site Survey
312 Solar Site Diagram
313 Sun Path Chart
314 Site Survey Worksheet
315 Wind Turbine Site Survey
316 Wind Turbine Worksheet
400 Solar Thermal Design
401 Solar Heat Overview
402 System Configuration
403 Site Survey
404 SRCC Compliance
405 System Specification
406 Bill of Materials
407 System Installation
408 Solar Heat Incentives
409 Document Package
410 Future Products
500 Solar PV Design
501 Solar PV Overview
502 System Configuration
503 Site Survey
504 Grid Tied & Off Grid
505 System Specification
506 Bill of Materials
507 System Installation
508 Solar PV Incentives
509 Document Package
510 Future Products
600 Wind Turbine Design
601 Wind Turbine Overview
602 System Configuration
603 Site Survey
604 Grid Tied and Off Grid
605 System Specification
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Green Collar Sponsors


Green Collar Careers - Kitchen Appliances

Recalling from Chart 202 the kitchen appliances are the second highest consumption group typically accounting for about 27% of the total electric bill.  Just over half that (~14%) is just to power the refrigerator.

Short of installing new higher efficiency appliances like convection ovens or high efficiency refrigerators or dishwashers there are two easy ways to reduce the power consumption in just about every kitchen.

Refrigerator Maintenance
Refrigerators are clearly the most reliable trouble-free appliance built, but they are not maintenance free.  Not even the best defrost cycle can eliminate the maintenance requirement. Refrigerator condenser coils tend to be naturally convective, meaning they donít have a forced air cooling fan. With time coils tend to build up a layer of dust. It is not unusual for a typical refrigerator to drop efficiency at a rate of 5-8% per year. Take the average fridge thatís been sitting in the same place for 5 years without a coil cleaning and that could be adding 3% to the power bill.

In homes with pets refrigerator coils tend to load up much faster.  Pet dander and fur tends to have a static attraction to coils.

Refrigerators with seal leaks can sometimes double their power requirement without anyone realizing it.  A sure sign of a seal leak is a region that's moist to the touch around the doors.  The moisture is from the humidity in the air condensing on the colder metal surrounding the leak.  Use a dry paper towel to swab the refrigerator around the exterior of the seal region - if its dampened at all the seal needs service.

Cleaning refrigerator coils are pretty easy, a 10 minute job with a shopvac.  The only tough part is pulling the fridge out as the rollers may be bound up, so have a couple of carpet sliders handy if needed.  This is definitely a service you'll want to perform for the customer.

To learn more about cleaning refrigerator coils use the search tool below to look up refrigerator condenser cleaning.

To learn more about cleaning refrigerator seals use the search tool below to look up refrigerator gasket replacement.

Seasonal Cooking
Here is an area that nearly everyone overlooks. Recall from Chart 202 that the second largest consumer of power is the kitchen, and that a little over half of that is just to run the refrigerator. What arenít included are the cooking and dishwasher loads that require additional air conditioning to cool. A couple points to consider:

Boiling a pot of water for spaghetti typically adds about 6 kWh to the air conditioning load. If the stove is equipped with range hood ducted to the outside, the air conditioning load drops to between 3-4 kWh.

Much of the heat from an oven is directly converted to heat that loads the air conditioner. Typically every 100į for every hour adds about 2 kWh load to the air conditioning.

Summertime thirst tends to fill the dishwasher with glasses faster then plates and silverware. Do they really need to be washed at the hottest water setting?

Despite the busy lives most families live a little planning can go a long way in reducing the Kitchen Appliance share of power consumption through the hottest quarter of the year when the air condition is running. Following these few simple guidelines will usually result in a minimum of a 5% annual reduction of energy consumed:

1) During warmer months do as much outdoor cooking as possible. If you have a burner on a gas grill, use that for dishes that require boiling water.
2) Avoid baking as much as possible during summer months. Substitute microwave heating for oven heating wherever possible.
3) Have a couple of dedicated glasses for each family member and reuse them through the day.
4) Rinse the dishes off before washing them, and lower the temperature of the dishwasher for summer wash cycles.


refrigerator condenser cleaning
refrigerator gasket replacement