Applications of the SEAD Street Lighting Tool Neal Humphrey CLASP - - PowerPoint PPT Presentation

Saving Energy and Improving Light Quality in Street Lighting

Neal Humphrey CLASP

Applications of the SEAD Street Lighting Tool

AGENDA

• About SEAD and the Tool
• Tool Features
• Future of the Tool

SEAD engages governments and the private sector to accelerate market transformation for energy-efficient equipment and appliances

16 Participating Governments

• Australia

Brazil Canada European Commission

• France

Germany India Japan

• Korea

Mexico Russia South Africa

• Sweden

United Arab Emirates United Kingdom

• United States

China (observer)

Partners

SUPER- EFFICIENT EQUIPMENT AND APPLIANCE DEPLOYMENT (SEAD) I NITIATIVE

Why Make a Tool for Street Lighting?

Problem: Solution: Simplified photometric analysis, integrated with energy and life cycle cost considerations, can allow lighting specifiers to find better fixtures for their lighting upgrades. With new fixture choices, wattage and light distribution classifications have less correlation with fixture performance on a specific road. Improved performance and energy savings depend on proper fixture selection.

What is the SEAD Street Lighting Tool?

The SEAD Street Lighting Tool, is a new, free software tool for analyzing fixture choices for street and roadway lighting that analyzes energy use, light quality, and lifecycle costs.

The tool can be used for:

a) Batch calculations of dozens to hundreds of fixtures at once; distinct advantage in retrofit scenarios b) Streamlined analysis for initial road configurations/lighting in early stages

• f the design process

c) An introduction to photometric analysis for novice users Download the tool at www.superefficient.org

Tool Features

Core Purpose: Integrating a photometric analysis of a batch

• f fixtures with an analysis of energy

consumption and life cycle cost

Overview

Tool Summary

• Excel tool, compatible with 2003 and later
• Available in English, French and Spanish

– Can support additional languages if partners can help with translation

• Available from: http://superefficient.org/sltool

Road Configuration Options

• Lane options:

– Two, four and six lane roads with or without medians – User specified lane width

• Pole configurations:

– Single-side, Staggered, Median- mounted

• User specified spacing and

sizing:

– Pole height – Pole spacing – Arm length

0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 0.0 20.0 40.0 60.0 80.0

Fixture Choices & Calculations

Fixture Choices:

• 37 generic fixtures

(including HPS, MH and LED)

• Add your own fixtures by uploading

the IES data to the tool

Fixture Choices & Calculations

Fixture Calculations:

• Luminance and illuminance calculations using IES

methodology

• Graphical results indicate which fixtures meet your light

level and uniformity targets

• Energy and costs reported in a variety of methods:
• kWh/kilometer/year
• kWh/fixture/year
• $/kilometer/year
• NPV of lifecycle installation,

energy, and maintenance costs

Analysis Methods

• Quick Comparison of a single fixture to a baseline

Analysis Methods

• Batch method to simulate up to hundreds of fixtures for a given

layout at once

• Multiple batches and single runs can be saved and compared
• Quick assessment of functionality with three example analyses

10,000 20,000 30,000 40,000 50,000 60,000 70,000

kWh/kilometer/year Annual Energy Use - All Fixtures (Illuminance Filtered)

Baseline Energy Meets Illuminance Criteria Fails Illuminance Criteria

Basic Financial Analysis

• Projects level inputs for fixture installation labor, pole

installation and bulb replacement cost

• Fixture-specific inputs for fixture costs and expected life
• Life cycle cost analysis

$0 $20,000 $40,000 $60,000 $80,000 $100,000 $120,000 $140,000

Lifecycle cost

Net Present Value - Lifetime Cost

NPV Maintenance Cost ($/km) NPV Energy Cost $/km Installation $/km

Future of the Tool

Tool Implementation Plan

Tool Implementation Partnerships

• Feedback on tool

utility and features

• Assurance to future

users of tool capabilities

Tool Upgrades

• Improved usability
• Improved financial

analysis

• CIE calculations

Tool Dissemination

• Informing potential

users of the tool

• Improved training and

documentation

Additional Street Lighting Projects

• Identification of other

key barriers to SL installations

• Considering additional

projects to address barriers

Tool Implementation Partnerships

• First location is with LightSavers Canada (January 2012)
• Seeking additional locations

Benefits:

• Training on tool
• Assistance in analysis
• Case study report

Partner Needs:

• Initial planning stage
• Feedback on tool usability
• Time available for conducting

analysis

Summary of implementation pilot concept on tool website, or by emailing sltoolkit@superefficient.org

Discussion and Questions

sltoolkit@superefficient.org

Using the Tool (tool screenshots if needed for questions)

Getting Started

• Excel based, free to download and

distribute – Available from SEAD website, www.superefficient.org

• Uses macros, which must be

enabled

• Tool is a series of worksheets,

navigable by the tabs or links located on each sheet

• On download, no entries in input

field or results saved – For a quick start to explore the tool’s functionality, three examples are available

Doing an Analysis

• Analysis steps revolve around the “Input” worksheet
• Input cells are yellow, calculated cells are blue

Step 1: Road Geometry

Step 2: Light Levels

Step 3: Select Fixtures

Step 3: Select Fixtures

Step 3: Select Fixtures

Step 4: Cost Information

Single Fixture Comparison

Measurement Grid Results

Batch Analysis Results

Batch Analysis Results

Batch Analysis Results

$0 $20,000 $40,000 $60,000 $80,000 $100,000 $120,000 $140,000

Lifecycle cost

Net Present Value - Lifetime Cost

NPV Maintenance Cost ($/km) NPV Energy Cost $/km Installation $/km

Batch Analysis Results

SEAD Tool – Planned Upgrades

• Usability
• Definitions and

clarifications

• Potential training videos
• Languages
• CIE calculation method
• Additional pole

configuration scenarios

• Financial Inputs and

Reporting

1 6 11 16 21 26 31 36 41 0.00 5.00 10.00 15.00 20.00 Average Illuminance Simple Payback (with user supplied fixture costs)

EXAMPLE - Simple Payback compared to Light Output

Fails Criteria Passes Criteria Exceeds Criteria by 50% or more