energy management solutions that reduce costs

30
Energy Management Solutions that Reduce Costs Presented by: Janie Jefferies-Freer VP Sales, eSight Energy Group Hosted By: Building Engines Wednesday, June 9 th , 2010

Upload: building-engines

Post on 20-Aug-2015

464 views

Category:

Real Estate


0 download

TRANSCRIPT

Page 1: Energy Management Solutions That Reduce Costs

Energy Management Solutions that Reduce Costs

Presented by:

Janie Jefferies-FreerVP Sales, eSight Energy Group

Hosted By: Building Engines

Wednesday, June 9th, 2010

Page 2: Energy Management Solutions That Reduce Costs

1. Introduction

2. Challenges in implementing an

Energy Management System (EMS)

3. Components of an EMS

4. Techniques for energy reduction

5. Demonstrable ROI

6. Client case studies

Agenda

6.9.10: Energy Management Solutions That Reduce Costs

Page 3: Energy Management Solutions That Reduce Costs

Janie Jefferies-FreereSight Energy, Inc.www.eightenergy.com

Health CareProcess & Industrial Government Retail EducationProperty Management

Page 4: Energy Management Solutions That Reduce Costs

Introduction

Q: What is Energy Management?

A continuous planning process that drives the efficient use of energy in a building or process

Q: What does it mean today?

A focus on cost reduction and conformance to emerging best practices and legislation

6.9.10: Energy Management Solutions That Reduce Costs

Page 5: Energy Management Solutions That Reduce Costs

If you can’t measure it, you can’t manage it.

• Organizations look towards energy reductions to achieve cost savings

• Driven by energy costs, legislation or desire for corporate social responsibility

• Energy Management System (EMS) ensures visibility. Otherwise, data is low frequency, manually input, unreliable

• It can be seen as extremely expensive or complicated to implement an EMS project

• Where to start??

6.9.10: Energy Management Solutions That Reduce Costs

Chapter 1Challenges in Implementing and Energy Management System (EMS)

Page 6: Energy Management Solutions That Reduce Costs

• Multiple sites with data in disparate systems

• Multiple data sources (occupancy, temperature, production)

• Limits on energy/utility types that can be measured

• Diverse, incompatible protocols

• Limited data access/manipulation

• Concern over project cost and ROI

Major Challenges:

6.9.10: Energy Management Solutions That Reduce Costs

Chapter 1Challenges in Implementing and Energy Management System (EMS)

Page 7: Energy Management Solutions That Reduce Costs

Actual vs. metered usage

Determine infrastructure:

• BAS, meters, submeters

• Supplier data

• Disparate data sources

Chapter 1Challenges in Implementing and Energy Management System (EMS)

Getting Started: Keep it Simple

6.9.10: Energy Management Solutions That Reduce Costs

Page 8: Energy Management Solutions That Reduce Costs

Phased approach:

1. Implement formal energy policy

2. Seek outside help

3. Determine budget vs. payback

- How much is it worth to you?

- Determine what you need

Chapter 1Challenges in Implementing and Energy Management System (EMS)

Getting Started: Keep it Simple

6.9.10: Energy Management Solutions That Reduce Costs

Page 9: Energy Management Solutions That Reduce Costs

6.9.10: Energy Management Solutions That Reduce Costs

Chapter 2Components of an Energy Management System (EMS)

1. Identify

2. Analyze

3. Quantify

4. Reduce

What Steps to Take?

Installing an energy management system (EMS) should be the first step towards reducing energy

Page 10: Energy Management Solutions That Reduce Costs

Metering/Energy Data

• Metering (main meters / secondary meters)• Building Automation System• Utility bills• Manual meter readings

Automatic Data Collection• Log data every 5/15/30 minutes• Communicate readings to a PC or server

Energy Management Software (EMS)• Concise analysis of energy data• Targeted techniques for finding savings• Energy alarms and reporting

Energy Management Components

Chapter 2Components of an Energy Management System (EMS)

6.9.10: Energy Management Solutions That Reduce Costs

Page 11: Energy Management Solutions That Reduce Costs

DC From Loggers, BAS etc

Central Energy Management team or FM

company, Operations, Maintenance ,

Consultants

Office Staff

Management

Consultants

End Users

Centralized energy management system

Data distributed outon a need-to-know

basis by department or meter / user etc

Utilize methods to gather disparate data into a single, centralized

database. Not just energy data, but ‘peripheral’ data

Data collected from multiple locations (sites, buildings, departments) potentially worldwide

Chapter 2Components of an Energy Management System (EMS)

6.9.10: Energy Management Solutions That Reduce Costs

Page 12: Energy Management Solutions That Reduce Costs

THE PROCESS OF ENERGY MANAGEMENT

Data Collection

Identify Energy Usage

Optimization Exception Reporting

Benchmark sites and identify how and where energy is being used

Optimize the control process, reduce set points, turn systems off and reduce base load

Produce regular reports and build exception reports that tell you when the optimization is not working

Collect data for some weeks or months to enable base-lines to be set

6.9.10: Energy Management Solutions That Reduce Costs

Chapter 2Components of an Energy Management System (EMS)

Page 13: Energy Management Solutions That Reduce Costs

ElectricityGas

Water

Degree Day or localized air temperature values

Production Values Building Occupancy

SteamCompressed Air

Oil

Financial(utility bills, utility tariffs)

DATA COLLECTION Data Identify Optimize Report

Chapter 2Components of an Energy Management System (EMS)

6.9.10: Energy Management Solutions That Reduce Costs

Page 14: Energy Management Solutions That Reduce Costs

Data Identify Optimize Report

By bringing together all factors affecting energy usage, you gain:

• Holistic view of energy usage and driving factors behind it (temperature, occupancy, ft2, production values etc)

• Ability to normalize depending on variances (temperature, occupancy, ft2 ,production values etc. )

• Ability to reconcile costs and perform very accurate cost analysis

• Understanding of total usage and how it breaks down across site

Essential to be able to monitor data from all utilities/factors that affect usage

Chapter 2Components of an Energy Management System (EMS)

6.9.10: Energy Management Solutions That Reduce Costs

IDENTIFY ENERGY USAGE

Page 15: Energy Management Solutions That Reduce Costs

OPTIMIZATION Data Identify Optimize Report

An EMS incorporates many targeted techniques for accurate data analysis

• Techniques are ‘over and above’ those utilized within property BAS

• Time saving – eliminates manual ‘number crunching’

• Ability to view high level usage with drill-down to equipment level

• Optimizes equipment operation (e.g. HVAC, lighting) to reduce overall energy usage

• Automatically highlights problem areas (e.g. changes in control equipment settings)

• Automatic notifications based on site/user/timeframe etc. (baseload, set points, cost

analysis, load balancing, peak demand etc all reported automatically)

Chapter 2Components of an Energy Management System (EMS)

6.9.10: Energy Management Solutions That Reduce Costs

Page 16: Energy Management Solutions That Reduce Costs

REPORT

Chapter 2Components of an Energy Management System (EMS)

EMS Building Integration

Energy Analysis

Reporting Cost Analysis

Normalization& Target Setting

EmissionsManagement

Alarm Handling

EMS Server – Internet / Corporate Network

Tenant Billing

Internet / Network access to EMS by trained users

Access to energy data viadashboards for

END USERS

Energy usage, temperature, occupancy, production values, ft2, cost data etc

Data Identify Optimize Report

Page 17: Energy Management Solutions That Reduce Costs

Dynamic dashboards can present data in an informative and user friendly way, suitable for any ability level

Chapter 2Components of an Energy Management System (EMS)

Page 18: Energy Management Solutions That Reduce Costs

Regression analysis can be used to compare energy consumption against a driving factor such as temperature, hotel guests, production volumes.

Ene

rgy

used

Base load

Drift

Drift

Aim

Aim

Activity – compressing air, generating steam, cans of beer, degree days

REGRESSION – ENERGY EFFICIENCY

Page 19: Energy Management Solutions That Reduce Costs

Energy v Degree Days or other driving factorsFt‘2, occupancy, degree days

NORMALIZATION

Page 20: Energy Management Solutions That Reduce Costs

Jan Feb Mar Apr May Jun Jly Aug Sep Oct Nov Dec-30

-20

-10

0

10

20

30

40Average Temperature Oslo

Month

oC

Energy Temperature Curve

Page 21: Energy Management Solutions That Reduce Costs

Utilize methods to account for energy v significant changes in outside air temperature – either with electricity or natural gas

More than just degree day normalization

Page 22: Energy Management Solutions That Reduce Costs

Electricity reduction project for St James Hospital in Dublin

IdentifyInitial analysis of electricity use on the wards highlighted a higher than expected base load.

ProjectTen energy champions were identified and a project initiated to check and reset timers back to correct values.

Base load

Page 23: Energy Management Solutions That Reduce Costs

Reviewing and resetting timer schedules reduced base load and achieved a saving of $37,000 per year

Page 24: Energy Management Solutions That Reduce Costs

Base Load Analysis

Analysis of electricity use.

39% of the electricity consumption is out-of hours due to IT and air conditioning

This represents a cost of $850 per week - $45,000 annually

Page 25: Energy Management Solutions That Reduce Costs

Specific Energy Consumption

Carlsberg use 28 million kWh of energy in the brewing process.

Recovers 4 million kWh of energy from vapour heat exchanger.

Page 26: Energy Management Solutions That Reduce Costs

Number of Brews

Amount of hot water per Brew

Recovering heat from the vapour produced from a copper boiler provides hot water at 95o for use elsewhere in the brewing process.

SEC Analysis monitors the amount of hot water recovered per brew.

Page 27: Energy Management Solutions That Reduce Costs

With improved heat recovery and other energy reduction techniques, Carlsberg have been able to reduce their kWh per hectolitre (kWh/hl) by 14%

Page 28: Energy Management Solutions That Reduce Costs

How do you save real $$s?

Understand the characteristics of your site• Different techniques for different sectors

• Performance analysis, benchmarking sites

• Normalization of data

• Verification of utility billing information

Look at top level data to identify anomalies

Analyze data using targeted techniques to generate actionable intelligence (rather then just

‘number crunch’)

Page 29: Energy Management Solutions That Reduce Costs

• Save 5-20% in energy usage

• Significantly reduce costs with powerful techniques targeted towards specific areas of usage

• Brings together energy data into a single, centralized database - doing this gives you an holistic view of what is occurring

• Automated exception alerts

• Validate utility bills against internal data

• Engage staff by sharing information via dashboards

BENEFITS OF AN EMS

Page 30: Energy Management Solutions That Reduce Costs

For More Information:

Janie [email protected]

eSight Energy GroupWebsite: www.esightenergy.com

Sarah [email protected]: 781-314-9346

Building Engines, Inc.Website: www.buildingengines.comBlog:www.blog.buildingengines.com

275 Wyman StreetSte. 111Waltham, MA 02451781.290.5300

Sensible Solutions for Leases During Challenging Times