Energy Energy over $1 Billion of the Total over $1 Billion of the - - PDF document

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Energy Energy over $1 Billion of the Total over $1 Billion of the - - PDF document

Current Situation Current Situation n Americans are Currently Americans are Currently Spending $3.5 Billion / Year to Spending $3.5 Billion / Year to Heat Pools Heat Pools n The Public Sector Accounts for The Public Sector Accounts for


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Energy Smart Pools Energy Smart Pools

Current Situation Current Situation

nAmericans are Currently

Americans are Currently Spending $3.5 Billion / Year to Spending $3.5 Billion / Year to Heat Pools Heat Pools

nThe Public Sector Accounts for

The Public Sector Accounts for

  • ver $1 Billion of the Total
  • ver $1 Billion of the Total

nA Savings of Over 50% is

A Savings of Over 50% is Achievable with Currently Achievable with Currently Available Technology Available Technology

Heated Pools in U.S. Heated Pools in U.S.

nPublic Pools

Public Pools 145,000 145,000

nSemi

Semi-Public Pools Public Pools 170,000 170,000

nResidential

Residential 2,815,000 2,815,000

Average Monthly Heating Costs Average Monthly Heating Costs

City

Denver Denver Boston Boston Los Angeles Los Angeles

Outdoor

$310 $310 $380 $380 $480 $480

Indoor

$350 $350 $590 $590 $330 $330

Based on a 1000 sqft pool heated to 80 Based on a 1000 sqft pool heated to 80o with natural gas with natural gas

Understanding Pool Energy Loss Understanding Pool Energy Loss

Radiation 20% Convection, Other 10% Evaporation 70%

Evaporating Water Requires A Large Amount of Energy Evaporating Water Requires A Large Amount of Energy

Heat One Pound of Water Heat One Pound of Water From 50 From 50o to 80 to 80o 30 BTUs 30 BTUs Evaporate One Pound of Evaporate One Pound of Water at 80 Water at 80o 1048 BTUs 1048 BTUs

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What’s the Answer to Evaporation? What’s the Answer to Evaporation?

Pool Covers! Pool Covers!

Types of Cover Materials Types of Cover Materials

nBubble / Solar Covers

Bubble / Solar Covers

nVinyl Covers

Vinyl Covers

nInsulated Covers

Insulated Covers

Methods of Use Methods of Use

nManual

Manual

nSemi

Semi-Automatic Automatic

nAutomatic

Automatic

nPortable Reels

Portable Reels

nFixed Reels

Fixed Reels

nTracks

Tracks

Other Advantages Other Advantages

nReduces Make

Reduces Make-Up Water by Up Water by 30 30-50% 50%

nReduces Chemical

Reduces Chemical Consumption 30 Consumption 30-50% 50%

nPrevents Dirt & Other Debris

Prevents Dirt & Other Debris from Getting into Pool from Getting into Pool

Solar Pool Heating Systems Solar Pool Heating Systems

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Why Solar for Pools? Why Solar for Pools?

n Best use of Solar is to Heat

Best use of Solar is to Heat Swimming Pools Swimming Pools

n Low Temperature Heat Required

Low Temperature Heat Required

n Lower Cost Collectors can be Used

Lower Cost Collectors can be Used

n Solar Energy is a Renewable

Solar Energy is a Renewable Domestic Resource Domestic Resource

n Makes Pool Heating Affordable

Makes Pool Heating Affordable

n Can Extend Swimming Season

Can Extend Swimming Season

Solar Pool Heating System Solar Pool Heating System Types of Collectors Types of Collectors

nUnglazed

Unglazed

nGlazed

Glazed

Collector Siting Collector Siting

nCollectors should be Sited to

Collectors should be Sited to Receive Unobstructed Sunlight Receive Unobstructed Sunlight from 8am from 8am - 4pm 4pm

nResidential Needs 200

Residential Needs 200-700 sqft of 700 sqft of Open Roof or Ground Open Roof or Ground

nCommercial Needs up to 3000

Commercial Needs up to 3000 sqft of Open Roof or Ground sqft of Open Roof or Ground

Collector Orientation Collector Orientation

nIdeally Collectors should face

Ideally Collectors should face Due South Due South

nBut 15

But 15o East or West of South East or West of South Will Do Will Do

Collector Tilt Collector Tilt

nSummer Only

Summer Only - Latitude minus Latitude minus 10 10-15 degrees 15 degrees

nWinter Only

Winter Only - Latitude plus 10 Latitude plus 10- 15 degrees 15 degrees

nYear Around

Year Around - Latitude Latitude

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Collector Sizing Collector Sizing

nPool Size & Desired Temperature

Pool Size & Desired Temperature

nAvailable Solar Insolation

Available Solar Insolation

nAverage Temperatures &

Average Temperatures & Windspeed Windspeed

nCollector Orientation & Tilt

Collector Orientation & Tilt

Wind Breaks Wind Breaks

7 mph Wind Can 7 mph Wind Can Increase Consumption Increase Consumption Over 300% Over 300%

Wind Breaks Wind Breaks

nTrees

Trees - But Avoid But Avoid Pool Shading Pool Shading

nShrubs

Shrubs

nFences

Fences

Energy Efficient Pumps Energy Efficient Pumps

n Motors Can Consume Several Times

Motors Can Consume Several Times Their Initial Cost Each Year Their Initial Cost Each Year

n Proper Sizing is Critical to Efficient

Proper Sizing is Critical to Efficient Operation Operation

n Energy Efficient Motors Can Pay for

Energy Efficient Motors Can Pay for Themselves in a Very Short Time Themselves in a Very Short Time

n A Small Increase in Efficiency Yields

A Small Increase in Efficiency Yields Large Savings Large Savings

Energy Efficient Lighting Energy Efficient Lighting

n Compact Fluorescents Save 1/2

Compact Fluorescents Save 1/2 - 2/3 the 2/3 the Electricity and Last 10 Times as Long and Electricity and Last 10 Times as Long and Incandescent Lamps Incandescent Lamps

n Electronic Ballasts and T

Electronic Ballasts and T-8 Lamps Save 1/3 8 Lamps Save 1/3 Compared to Standard Fluorescents Compared to Standard Fluorescents

n High Intensity Discharge (HID) Lamps

High Intensity Discharge (HID) Lamps Offer High Efficiency and High Illumination Offer High Efficiency and High Illumination (Large Pool Rooms & Outdoor Lighting) (Large Pool Rooms & Outdoor Lighting)

n Motion Detectors (Shower Rooms/Changing

Motion Detectors (Shower Rooms/Changing Areas, Offices) Areas, Offices)

Shower Savings Shower Savings

nSet Temperature at 95

Set Temperature at 95-110 110o

nInstall Low

Install Low-Flow Showerheads Flow Showerheads

nInsulate Water Heater

Insulate Water Heater

nInstall Auto

Install Auto-Shut Off Valves Shut Off Valves

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General Pool Energy Management General Pool Energy Management

n Pool Temperature

Pool Temperature - Each Degree Each Degree Increase in Temperature Ups Increase in Temperature Ups Consumption 10% Consumption 10%

n Keep Intake Grates Clean

Keep Intake Grates Clean

n Reduce Filtration Time

Reduce Filtration Time

n Don’t Backwash Filter More

Don’t Backwash Filter More Frequently than Necessary Frequently than Necessary

n Keep Pool Heater Tuned Up

Keep Pool Heater Tuned Up

nImplement the Low

Implement the Low-Cost/No Cost/No- Cost Ideas First Cost Ideas First

nInstall a Pool Cover

Install a Pool Cover

nInvestigate a Solar Pool Heating

Investigate a Solar Pool Heating System System

Summary Summary

Energy Smart Pools

U.S. Department of Energy

Energy Smart Pools

U.S. Department of Energy