ENERGY PROGRAM ENERGY SURVEY REPORT
LARAGON CATERING LTD (DRURY COURT HOTEL) 28/30 Stephen Street Lower, Dublin 2 MPRN: 10000012152
Site Visit Date: 20th March 2012 Report Date: 2nd April 2012 Auditor: P.J. Henry
1 www.energia.ie
Document Control Project Number: 120320 Customer Name: Laragon Catering Ltd Address: Stephen Street, Dublin 2
Version No
Draft / Approved
Date
1.1 1.1
Approved Approved
2 April 2012 nd 2 April 2012
Energy Services Project Manager: Report Author:
nd
Name of Authorizer PJ Henry Cormac Mannion
Cormac Mannion PJ Henry
Conditions relating to the issue of this report: 1. No alteration to this report is permitted 2. This report shall only be reproduced in full. Permission must be given by Energia before extracts can be taken and used. 3. The report remains the property of Energia until payment is received.
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CONTENTS
Audit Summary
4
Introduction
6
Utilities Usage and energy map
8
Opportunities for cost savings
10
Electricity Supply Management
14
Energy Management Programme
14
Next Steps
14
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AUDIT SUMMARY This report makes recommendations for improvements and savings in a number of areas; in particular it is recommended that priority be given to: (a) Replacing existing light tubes/bulbs with more efficient LED/CFL bulbs (b) Installation of overvoltage correction equipment (c) Miscellaneous no cost/low cost items – reducing night usage, housekeeping etc While the annual cost savings detailed below are estimates, they are conservative and are at the lower end of estimates. Therefore we would expect to see greater savings in practice.
SUMMARY OF SIGNIFICANT RECOMMENDATIONS (A) General Lighting: Replace exiting bulbs with more efficient LEDs. Also install motion detectors in unoccupied areas such as toilets, offices, storerooms etc. Annual Saving % of Annual electricity bill Implementation cost Payback period
= €7,000 = 17.5% = €14,000 = 2 years
(B) Overvoltage Regulation: Installation of overvoltage regulation equipment could save approx. 15% of total energy usage with short pay-back time (a full explanation of how this works is detailed later in this report). Annual Saving % of Annual electricity bill Implementation cost Payback
= €6,000 = 15% = €12,000 = 2 years
(C) Miscellaneous No Cost/Low Cost items Miscellaneous items such as reducing night usage, improved housekeeping, use timers for extraction fan control etc. Annual Saving % of Annual electricity bill Implementation cost Payback
= € 2,000 = 5% = Low Cost = NA
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SUMMARY OF POTENTIAL SAVINGS
Recommendation
% saving
Annual Saving €
Implementation Payback Cost Period
Lighting
17.5%
€7,000
€14,000
2 years
Overvoltage correction
15%
€6,000
€12,000
2 years
5%
€2,000
UNK
NA
37.5%
€15,000
€26,000
Miscellaneous (detailed later report)
Total
in
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INTRODUCTION AND BACKGROUND This report identifies opportunities for operational improvements and potential cost savings for energy and water usage. Before any recommendations are implemented, please ensure that all possible staff and client health & safety issues, which may result from any technical or operational changes proposed in this report, are fully assessed and evaluated. The cost savings recommended in this report are broad estimates based on industry benchmarks and best practice. Any planned implementation of recommendations should be specifically evaluated to the business’s financial objectives and requirements. The opportunities outlined, aim to give guidance of where the best value for money can be achieved by explaining details on a general basis. th
An energy survey of the Drury Court Hotel in Dublin City centre was carried out on 20 March 2012 by an independent energy consultant (P.J. Henry) on behalf of Energia Energy Services. The audit involved a 1 day on-site visit, including a desktop audit by analysing energy bills.
Audit Scope The scope of the audit was to complete an initial energy usage audit, which reviewed and analysed the following elements of energy usage, in order to identify and prioritise potential opportunities for cost savings:
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Review of Energy bills
-
Identify significant energy & utility users
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Develop an energy map
-
Identify inefficiencies in operation
We would expect to identify between 10% - 20% in potential savings as a result of this type of survey.
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Energy Management Programme (EMP) The Drury Court Hotel is currently implementing an energy reduction programme, in order to improve their operational efficiency and reduce business costs. To this end the business should appoint an energy manager who is responsible for implementing the programme by identifying and evaluating energy saving ideas. A complete and successful EMP is usually implemented in 3 phases as follows: Phase 1: Initial energy survey to identify easy to implement no cost or low cost projects Phase 2: Develop on-site employee awareness, set goals and develop a benchmarking system. Phase 3: Carry out regular energy audits which identify additional cost savings
Client profile The hotel was built in 1994 and has 42 bedrooms over 5 floors with reception/bar/dining area on the ground floor and a basement area which includes offices and a function room. There is a small car parking area external at the back of the building. The largest energy user is lighting at 50% of total usage. Other electricity users are air conditioning fans, extraction fans, refrigeration and coolers, a lift and other small equipment such as PC’s etc. Space heating, Cooking equipment and hot water generation is supplied by natural gas boilers. Water usage is mainly used for flushing toilets, showers, washing and cooking.
It was emphasised at the opening meeting that the company wanted to focus on low cost items that can be implemented quickly. To this end this report has focused on a number of low cost or no cost items to achieve savings, while also prioritising items where the company can get the quickest payback terms on capital investments.
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UTILITIES USAGE & ENERGY MAP Electricity (2011) Gas (2011) Water
: €40,000 : €20,000 : €10,000
Current Supplier for Gas and electricity: ENERGIA
Elect
Gas Water
**Main Energy Users breakdown
Electricity is mainly used for lighting, air conditioning units – bar & bedrooms, extraction fans – kitchen & toilets, refrigeration, bottle coolers, IR heaters in smoking area, ice machine, central heating pumps, lift and miscellaneous equipment such as PC’s, tills, TVs etc.. Natural gas is used for space heating, hot water generation and kitchen equipment such as ovens, grills etc. Water is used for toilet flushing, showers and hand wash basins, bottle & dish/pot washing and general cleaning. **Note: Breakdown of usage is based on general standards in the industry and may vary for the individual business audited.
Estimated electricity usage based on the audit is as follows:
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ENERGY MAP - Electricity User Lighting**
:
% of total usage Annual cost (based on 2011 cost) 50% €20,000
Refrigeration
:
15%
€6,000
Extraction Fans**
:
10%
€4,000
AHU fans
:
10%
€4,000
Ice Machine
:
5%
€2,000
IR heaters
:
3%
€1,200
Bottle Coolers
:
2%
€800
Miscellaneous***
:
5%
€2,000
ENERGY MAP – Natural Gas User Space Heating
% of total usage Annual cost (based on 2011 cost) 40% €8,000
:
Hot Water
:
20%
€4,000
Cooking Equipment**
:
40%
€8,000
ENERGY MAP – Water User Main Toilets flushing**
% of total usage Annual cost (based on 2011 cost) : 40% €4,000
Bedroom flushing/showers
:
30%
€3,000
Bottle/Dish Washing
:
10%
€1,000
General Cleaning
:
10%
€1,000
Dish/Pit/Glass washing
:
10%
€1,000
**Bold highlighted items are focus areas
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OPPORTUNITIES FOR COST REDUCTIONS GENERAL RECOMMENDATIONS Lighting Lighting accounts for approximately 50% of total electricity costs and as such should be the main focus for cost saving projects. Lighting improvements tend to give very quick payback times at low capital cost. Lighting should be upgrade on a phased basis, doing the areas that give quickest payback first. ****Savings calculation & assumptions: Total cost of lighting is approx. €20,000 per annum. Assuming half of the lights can be replaced with LED’s, therefore there is a potential saving of 70% of this figure = €7,000 Specific opportunities for savings: 1. Motion sensors should be installed in all unoccupied areas such as toilets, corridors, basements, offices and storerooms. 2. Upgrade remaining tungsten filament bulbs in bar area with more efficient LED or CFLs (depending on color/glow requirement). 3. Reception area: Replace existing 35W spots with 3W LEDs. At a cost of €8 - €10 each and no new fitting required these lights will generate a payback within 6 months. 4. Replace bedroom corridor and landing light fittings with LEDs. At a cost of €50 per fitting these fittings give a pay back of less than 2 years. 5. Ensure that all non-essential lighting is switched off 6. De-lamp where possible for example in bar basement corridor and basement landing area. This is an easy no cost way to reduce usage. 7. Cleaning of lamp fittings and shades. If cleaned this may allow further de-lamping. 8. Change all running man signs from 8W CFL to 1W LED. Payback 6 months.
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Overvoltage Regulation All electrical equipment is designed to operate most efficiently at approx. 220V input voltage. However in Ireland input voltage can vary greatly in different parts of the country and could be as high as 235V. This causes inefficient electrical usage on equipment such as lights for example, as well as reducing the life time of equipment and increasing maintenance costs. Using an overvoltage regulation system, incoming voltage is typically set at 217V, potentially saving 15% - 30% of overall electricity costs. Savings depend on what the current voltage is, but payback times are between 2-3 years on average. It is recommended that a supplier is initially contacted and an audit carried out in order to determine what potential savings may be available. These audits will be usually carried out free of charge by the supplier. Recommended supplier: Kieran Lynam Global Energy Management Ltd, OFFICE: 021-4879398
Miscellaneous Low cost/ no cost recommendations 1. Office Equipment Buy energy saving office equipment e.g. photocopiers, PCs and laser printers that bear the energy label. Always switch off office equipment when not in use. Discourage the use of electrical equipment in the office such as heaters, fans etc.
2. Bedrooms
Add the following items to the housekeeping checklist : o o o
TV’s turned off at socket i.e. no red light on TV 0 Air conditioning control unit set point is max 21 C Post sign beside air con control unit to ask guests not to raise temperature 0 set point over 21 C
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3. Bar Area Reduce air conditioning set point temperature from 23 C to 21 C. Post sign beside control unit to remind staff of this requirement. A 1 degree reduction in temperature settings could save 10% on gas usage and cost. 0
0
Install an additional temperature controller onto air conditioning unit to automate on/off of heating.
4. Kitchen:
Fit sensor onto kitchen extraction fan, using heat as sensor parameter.
Training kitchen staff to turn off cooking equipment when not required – saving gas.
Interlock fridge lights with door ie. Lights found to be left on during audit.
Ice Machine – review operational hours and scheduling use. Look at possibility of making bulk amounts of ice and storing in freezers, during low demand periods.
Repair light tube in keg room. Look at installing a motion sensor and/or delamping.
Inspect the extraction fan motor located in keg room ducting, as the motor noise indicates that the pulley belt or bearings are worn. This will improve the efficiency of the fan motor.
5. Out-side utility areas/Attic:
Attic – lights found to be left on during audit, install motion sensor.
Roof – identify fan exhausts (x2) and turn off fans if not required.
6. Basement:
Replace down-lighters outside lift area with LEDs, payback of less than 6 months.
Replace as they blow the side lights in the breakfast room with CFL bulbs.
Toilets – replace lights with LEDs or fit motion sensors.
Interlock toilet extract fans with lights or install timer onto fans.
Replace corridor and stairs lights with LEDs – should have payback in less than 2 years.
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6. Night Time usage:
Usage between 11.00pm and 8.00pm is 32% of total energy usage. This means that there is as much power used overnight as during the day, even though the bar and kitchen areas closed. This is high by industry standards (should be approx. 20%) and would indicate that equipment is being left on at night such as fans, lights etc.
There is a potential saving of €1,840 if night rate usage can be brought down to 25%. This can easily be done at no cost by initially carrying out a night time survey to see what equipment is running and then turning off non-essential items.
Timers should be installed on bar bottle coolers and tv electrical sockets, so that these are turned off automatically at night.
Water conservation Water usage reduction and recycling could greatly reduce the hotel’s water bill. There are a number of easy to implement measures which can be taken to reduce water costs. These are outlined below:
1.
Install sub-meters for water to specific areas and monitor the water usage on an ongoing basis.
2. Do a water balance study to establish, water-in and water-out quantities from all users. 3. Do leak tests to see if there is any water wastage. 4. Install tap aerators throughout the hotel where pressure allows. 5. Install automated control valves (timed) to turn off toilet flushing during periods of low demand.
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Electricity Supply Management Tariff Management The current tariff was reviewed on the day of the audit is appropriate for the site. However it is good practice to review the tariff every year with the Energia representative.
Energy Management Energy Management Team A designated energy team should be put in place, which would be responsible for implementing a number of energy reduction projects. These wins should be communicated and successes rewarded. A system of regular audits should be implemented.
Energy Awareness Scheme Implement an Employee awareness scheme such as – “We are not wasters” type of campaign.
NEXT STEPS •
Implement and monitor energy saving recommendations from this energy survey.
•
Carry out regular energy audits in-house (weekly) by energy team members
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Communicate this energy report to all employees
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Provide awareness training for energy team members and employees
•
Carry out a 2 day energy awareness / promotional exhibition
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