Energy Conservation

1. Air Sealing Holes/Cracks 2. Improved Insulation 3. Increased Efficiency of Heating/Cooling & Domestic Hot Water (DHW) 4. Lighting & Efficient Appliances/Products 5. Staff and resident education Top Energy Reduction Strategies

Major Home Energy Usage Air Sealing

Energy Loss: Infiltration & Ventilation

Common Air Sealing Opportunities – Electrical penetrations – Plumbing penetrations – Window framing – Wall to floor connection – Doors and vestibules – Basement ceiling – In-unit ventilation grills – Ducts, plenums, registers

General Air Sealing Guidelines Gaps 1/4 " Caulk Gaps 1/4 " – 3 " Spray foam Other Foam board, fiberglass in plastic bags, etc.

General Air Sealing Guidelines Doors & Windows Weatherstripping Ducts & Plenums Mastic, Duct Tape

How did the resident cut their bill in half? Insulation Insulation & Other Envelope Improvements

Measuring the Efficacy of Insulation R-value: The measure of a materials resistance to heat transfer.

Insulation Target R-Values

Blown-In Attic Insulation How much is in that back corner? Staple rulers every 15 feet for even coverage Source:

Reality

Other Envelope Strategies Solar ScreensReflective Metal Roof Radiant Barrier

How a smart strip surge protector works Lighting & Appliances

ENERGY STAR ENERGY STAR-certified products meet energy efficiency standards set by the U.S. Environmental Protection Agency. They are tested in laboratories and off-the-shelf.

Where to Use ENERGY STAR Lighting? 17 Rooms Family and living room Kitchen Dining room Porch Fixtures Table lamps Floor lamps Wall sconces Pendants Open ceiling fixtures

Lighting: Use Sensors & Bi-level Lighting Occupancy or motion sensors turn lights on when people enter the area Photo Sensors sense light and turn lights on and off based on light levels inside and out Bi-level lighting dims lights when no one is present Good for areas where light levels have to be maintained and not off to meet code

Foundation Communities Lighting Inventory Goal: Comprehensive inventory of all lighting fixtures at FC for use in planning phased lighting upgrade Timeframe: May-October 2013

Energy Star Products/Appliances ENERGY STAR Available: Bathroom Fans Refrigerator Computer Window Kitchen Fans Air Conditioning Units Hot Water Heaters Heating/Cooling Equipment Dishwasher Lighting Dehumidifier Clothes Washer ENERGY STAR NOT Available: Clothes Dryer Mini fridge Stove Microwave

Measuring Phantom Loads

Ways to save energy through purchasing HVAC & Domestic Hot Water (DHW) HVAC & Domestic Hot Water (DHW)

A Few Measures of Efficiency SEER: Measures AC efficiency (split systems) EER: Measures AC efficiency (PTACs) EF: Measures appliance efficiency, including water heaters

Replacing HVAC Buy high-efficiency equipment 14.5 SEER for split system HVACs 10.8 EER for heat pump PTACs Have the equipment sized to load, ask your engineer to show the math (Ask for the ACCA Manual J report) Measured in tons of cooling Use R410 Refrigerant

Typical Hot Water Heaters Inefficient Short life Can spill or backdraft products of combustion Notorious for carbon monoxide production

Alternative Hot Water Heat Pump Water Heater Tankless Gas Water Heater

Alternative Hot Water Solar Thermal Gas Condensing

How did the resident cut their bill in half? Evaluating Multifamily Buildings Evaluating & Upgrading Multifamily Buildings

Benchmarking: Read Your Utility Bill Look at the utility bill and answer the following questions. 1. What is the total bill amount? 2. What is the invoice date? 3. What was the electric consumption in kWh? What was the demand in kW? 4. Look at the account breakdown on the second page. 1. What are the different per-kW charges? (Identify charge type and amount.) 2. What are the different per-kWh charges? (Identify charge type and amount.)

Conduct An Energy Audit Different levels of auditing by increasing complexity Walkthrough audits Weatherization audits Whole building audits Investment grade audits Hire an expert BPI certified Uses ASHRAE standards

Choose Upgrades Focus on the top five strategies 1. Air Sealing Holes/Cracks 2. Improved Insulation 3. Increased Efficiency of Heating/Cooling & Domestic Hot Water (DHW) 4. Lighting & Efficient Appliances/Products 5. Staff and resident education

Simple Payback A way to calculate the time it will take to recuperate your investment in resource efficiency upgrades. Simple payback period = (in years) Cost of efficiency measure Annual savings

Simple Payback - Practice MeasureCostAnnual Savings 1New 14.5 SEER split system HVAC, installed $2,500$500 2LED light bulb$15$ R-38 insulation$1,800$275 Simple payback period = (in years) Cost of efficiency measure Annual savings

How did the resident cut their bill in half? Evaluating Multifamily Buildings Easy, Free Things You Can Do Today

Easy & Free 1. Shut windows & doors when HVAC is on 2. Lower the set temperature of your water heater (~120°F) 3. Lower the set temperature of your furnace (65° - 70°F 4. Raise the set temperature of your A/C (76° - 82°F) 5. Shut off phantom loads 6. Program your thermostat