• No results found

Energy Audit Report. Prepared By: Utilitywise plc. Reproduction of this document in whole or in part is forbidden without the consent of:

N/A
N/A
Protected

Academic year: 2021

Share "Energy Audit Report. Prepared By: Utilitywise plc. Reproduction of this document in whole or in part is forbidden without the consent of:"

Copied!
15
0
0

Loading.... (view fulltext now)

Full text

(1)

Energy Audit Report

Prepared By: Utilitywise plc

Utilitywise plc Utilitywise House 30-31 Long Row South Shield Tyne & Wear NE33 1JA Tel: 0870 626 0559 Fax: 0870 626 0589 Reproduction of this document in whole or in part is forbidden without the consent of:

(2)

Utilitywise Limited

We help businesses get more value out of their energy contracts, reduce their energy

consumption and lower their carbon footprint. Businesses of all sizes rely on us for their

energy management needs whether at one site or across the UK. With access to prices from

every major gas and electricity supplier and ground-breaking energy monitoring products

we are sure we can find the best price for your business energy and ways to reduce your

energy spend.

Utilitywise products and services

Account Care

: our Account Care service makes sure that you are getting the best value out

of your energy contract and what you are being charged is right for your business.

Carbon Zero for Energy

: we can make your business energy carbon neutral by offsetting

business gas and electricity usage.

Smart Meters and Utility Insight

: we can arrange to install smart meters (also known as

AMR meters) into your business. These come with Utility Insight, a leading reporting system

that gives you access to critical information on utility usage.

Edd:e

: Utilitywise’s electrical energy monitoring systems measures each circuit on the

distribution board it is wired to which means that you can see detailed energy use for every

circuit from every distribution board in your business, 24-hours a day, 365 days a year. The

information Edd:e provides allows you to make informed decisions about the actions to

take to reduce energy usage, lower their energy bills, reduce their carbon footprint and

manage the total energy load in the business.

Ecofit

: The Utilitywise Ecofit team can fit a range of energy saving devices and equipment

into industrial and commercial properties. They can advise, devise and undertake any re-fit

projects needed to realise energy savings.

From getting a quote for your business energy to helping you reduce your energy

consumption and lowering your carbon footprint we are the energy experts you need.

(3)

Executive Summary

Object of Survey

Utilitywise is committed to aiding business in reducing electricity, gas and water consumption, CO2 emissions and annual energy spend. The objective of this survey is to highlight physical and

behavioural changes and to calculate their effect on savings within the building. Each measure presented within this report is done so as part of a Utilitywise supported implementation plan.

Identified savings

Utilitywise anticipate that through the implementation of the measures outlined in this report the following savings can be achieved:

• Annual energy savings of 103.84 MW

• ŶŶƵĂůǁĂƚĞƌƐĂǀŝŶŐƐŽĨϯϮϱŵॅ

• Annual COЇsavings of 50.96 tonnes • Annual cost savings of £4,507.40

If all measures identified within this report are implemented the following percentage savings can be achieved:

• Total annual reduction in energy consumption of 14 % • Total annual reduction in water consumption of 22% • Total annual reduction in COЇconsumption of 19% • Total annual reduction in energy spend of 13%

The payback period if all identified measures are implemented is 1.74 years

Percentage Savings

Energy (14%) Water (22%) COЇ(19%) Spend (13%)

(4)

Estimated Savings per annum

Lighting £ COЇe (kg) kWh Estimated

Cost

Payback Period (Years)

Identified Savings by Behavioural

changes £182.07 2,329 4,234

Identified Savings by Fitting changes £672.39 8,601 15,637 £5,268.98 6.17

Total £854.46 10,930 19,871 £5,268.98 6.17

Estimated Savings per annum

Water £ Hot Water

COЇe (kg) Hot Water kWh Estimated Cost Payback Period (Years)

Identified Savings by Fitting changes £962.11 7,380 605.15 325 £254.80 0.71

Summary Table

Estimated Savings per annum

Total £ COЇe (kg) kWh Estimated

Cost

Payback Period (Years)

Identified Savings

from all changes £4,507.40 50,960 103,845 325 £7,835.00 1.74

Esimated savings per annum

Estimated Other Savings £ COЇe (kg) kWh Estimated Cost

Payback Period (Years)

Identified Other Savings £1,838.00 21,741 46,000 75 £1,850.25 1.01

Esimated savings per annum

Time Controls £ COЇe (kg) kWh Cost Of

Changes

Payback Period

Identified Timer Savings £852.83 10,908 19,833 £460.97 0.54

(5)

Existing Consumption

Utility £ COЇe(kg) kWh Water m³

Electricity £15,650.00 139,205.00 253,100.00 N/A

Fossil Fuels (main and secondary) £18,553.54 123,198.50 466,344.00 N/A

Water £1,320.00 N/A N/A 1,450.00

Total £35,523.54 262,403.50 719,444.00 1,450.00

Existing Consumption - The Starting point for the Assessment

(6)

Overview

Site Details

The company employs approximately fifty employees and operates normal office hours of 9 till 5 for the office staff and 3 shifts covering 24 hrs a day for the production staff.

The building was constructed in two phases. Phase one was completed in 1990 and phase two was completed in 2010. The two storey building has a brick external construction with a flat roof and double glazed windows.

Space heating for the canteen, WC’s and parts of phases one and two are provided by means of 2no gas boilers. There is also an additional gas boiler located outside, which provides heated fresh air to the phase one workshop.

Local heating is provided by steel type domestic radiators in the canteen, kitchens, WC’s and all phase one, and some of phase two offices. All of the radiators are fitted with Thermostatic Radiator Valves (TRVs). Air Handling Units (AHUs) provides the heating for the phase one workshop and a direct gas fired heater provides heating for the phase two workshop. Ceiling mounted cassette units also provides heating to some of the offices in both phases.

There is a number of production machinery, the majority of which are operating 24 hours a day. For production reasons, the majority of these machines cannot be turned off.

A two year old ASD 57 compressor provides compressed air for use in the phase two workshop. Also a twelve year old ASD 57 compressor provides compressed air for use in the phase one workshop. Both these compressors are Idle at 120psi.

Assumptions and Clarifications

The conclusions and recommendations contained within this assessment report are based on

observations made during the site survey. It is believed that these observations are representative of normal working conditions at the site but this should be confirmed before implementing measures. Similarly, it should be noted that the quoted savings and cost figures are budget estimates only, and should be confirmed prior to committing to expenditure.

(7)

Estimated savings per annum

Room Proposed Modification Existing Product Proposed Product Proposed Quantity Current Operating Hrs Proposed Operating Hrs £ CO

Ї

e (kg)

kWh Estimated Cost Payback Period (Years)

Administra tion area Fitting (Non behavioural) 100W Tungsten 2 x 24W T5 high output - SOLR224 12 3,812.00 3,812.00 £100.32 1,283 2,333 £888.48 8.86 Sub Total 12 £100.32 1,283 2,333 £888.48 8.86 Garage Fitting (Behavioural) T12 x 100W 3 x 28W T5 - SOLR328 10 3,812.00 3,144.90 £101.43 1,298 2,359 £1,004.20 9.90 Behavioural 2 x 36W T8 - TLSF236/C2 - 0 3,812.00 2,672.00 £8.43 108 196 £.00 0.00 Sub Total 10 £109.86 1,406 2,555 £1,004.20 9.14 Workshop Fitting (Non behavioural) 1 x 70W HQI-TS - SDE70MBI/B 1 x 70W HQI-TS - SDE70MBI 10 3,812.00 3,812.00 £70.48 902 1,639 £784.90 11.14 Fitting (Behavioural) T12 x 100W 2 x 24W T5 high output - SOLR224 35 3,812.00 3,079.60 £573.80 7,339 13,344 £2,591.40 4.52 Sub Total 45 £644.28 8,241 14,983 £3,376.30 5.24 Overall Total 67 £854.46 10,930 19,871 £5,268.98 6.17

Lighting

The majority of the lighting is via a mixture of T12 and T8’s tubes with a small number of CFLs and 150W metalhalides in phase one workshop. During our visit many lights were left on in unoccupied spaces which were controlled via on/off switches, however, in significant parts of phase two including the phase two workshop there are Passive Infra Red (PIRs) detectors installed.

(8)

Estimated savings per annum

Room Name Fitting Type Proposed Product Quantity of Outlets Savings (£) Total Savings

m

³

Cost (Incl Labour) Payback (Years)

Male Toilet facility

Tap not kitchen Tap Aerator Male/Female thread

product code 9001-4010 20 £81.34 74 £75.20 0.92

Toilet Cistern Displacement device product

code 9001-4010-long 10 £13.73 12 £18.00 1.31

Shower no bath Water Saving Shower Head Hand held product code 415 4 £153.75 140 £86.40 0.56

Tap in kitchen Tap Aerator Male/Female thread product code 9001-4010 10 £23.41 21 £37.60 1.61

Office Toilet

block Tap not kitchen

Tap Aerator Male/Female thread

product code 9001-4010 10 £84.73 77 £37.60 0.44

Overall Total 54 £356.96 325 £254.80 0.71

Domestic Hot Water (DHW) for the kitchen, the canteen and some WCs is provided by the two gas fired boilers located in plant room on the first floor however, hot water for the majority of phase two WCs are provided by in situ electric water heaters.

Water

Total Other Savings Cost Saving kWh Saving COЇe (kg) Saving Water m³

Saving Cost Of Changes Payback Period

Insulate Hot Water and Heating Pipework

It was noted during the survey that several areas of heating/hot water pipework had no insulation. It is recommended that all un-insulated hot distribution pipework is insulated.

Heat losses from pipes can be reduced by over 70% by fitting insulation. Significant heat is lost from valves (equivalent to the heat lost from 1m of insulated pipework) and flanges (equivalent of 0.5m of un-insulated pipework).

Only suitable insulation fit for the purpose should be used. Staff should ensure that no asbestos is removed to install any new insulation.

1. Check all the pipes and valves across the building.

2. Insulate all distribution pipework which is not contributing useful heat to the working areas.

Cost saving kWh Saving COЇe(kg) Saving m³ Saving Cost of changes Payback period

£258.00 6,000 3,300 £150.00 0.58

Other Savings

(9)

Repair Leaking compressed Air Lines

Regular leak detection is not carried out on the compressed air system. Leaks were observed on site from the air lines, filters and drains.

The most common sources of leaks are: • Manual condensate drain valves left open. • Shut off valves left open.

• Leaking pipes and pipe joints. • Leaking hoses and coupling. • Leaking pressure regulators.

• Air-using equipment left in operation when not required. It is recommended that:

1. Regular leak detection is carried out; ultrasonic leak detection is preferable to detect smaller leaks that cannot be heard.

2. All leaks be identified and repaired.

Inspection should be carried out during quiet, non production hours, in the following manner: 1. Look out for visible sign of leakage (as found during the survey)

2. Listen for pipework or production line leaks for larger leaks. 3. Check all valves for stem seal leaks.

4. Isolate or strip out redundant or rarely used pipework.

Leakage will be reduced if operating pressures are reduced to a minimum operating level.

Leaks can often not be heard and therefore go unnoticed for long periods of time. Compressed air leaks will lead to additional costs through:

• Fluctuating system pressure which can cause some equipment to function less efficiently.

• Reduced service life and increased maintenance of equipment due to unnecessary compressor cycling and running time.

• Excess compressor capacity.

Losses through a 6mm diameter hole could cost in excess of £1,000/year for a 48hour/week operation, based on 7bar(g) pressure. In addition, the Transportable Gases and Pressure Systems Regulations demand regular inspections.

Cost saving kWh Saving COЇe(kg) Saving m³ Saving Cost of changes Payback period

£1,259.00 28,000 15,400 50 £1,200.00 0.95

Consider Reducing compressed Air Operating Pressure

Any air leakage will be reduced if operating pressures are reduced to a minimum operating level. Once any system leaks have been repaired it is recommended that system pressures be reviewed and dropped in half bar increments until minimum operating pressures are achieved.

Operating pressure of the system was approximately 7 bar. It is recommended that the client:

1. Reviews the current system demand to determine the pressure requirements for each user. 2. Seek professional advice from the manufacturer to see if you can reduce the system pressure. 3. Reduce operating pressures on both compressor systems in increments of 0.5 bar until the optimum level is reached.

4. Ensures that losses on the system are reduced to a minimum.

Cost saving kWh Saving COЇe(kg) Saving m³ Saving Cost of changes Payback period

(10)

Replace Old 'Landlord' Boilers with High Efficiency Condensing Type

Heating for the main office building is provided by a Stelrad-Ideal and Potterton-Netaheat gas fired boilers. It is thought that these boilers are more than 15 years old.

Modern condensing boilers are the most efficient boilers on the market as they recover as much of the heat as is practically possible from the flue gases. They are particularly suited to low temperature or possible part load applications.

Tax incentives are available when purchasing energy efficient boilers and other equipment such as controls via the enhanced capital allowance scheme (www.eca.gov.uk/):

Financing schemes are available from Siemens Financial Services. It is recommended that:

• The boilers are replaced with high efficiency condensing boilers.

• The controls are replaced with modern optimised and time schedules are set to suit occupancy. • The possibility of loans and other financing options is investigated.

• At least three suppliers are contacted to gain quotes and compare findings. • The energy technology list is reviewed when purchasing new equipment.

• When specifying new equipment request where possible that the plant is included on the Energy Technology List to gain further tax breaks.

Cost saving kWh Saving COЇe(kg) Saving m³ Saving Cost of changes Payback period

£172.50 7,500 1,988 £200.00 1.16

Total Saving £1,838.00 46,000 21,741 75 £1,850.25 1.01

Time Control Savings Product Description Cost Saving kWh Saving COЇe(kg) Saving Cost Of Changes Payback Period

Free Standing how water storage with Immersion Heater

The hot water immersion heater is switch on most of the day and night allthough the I.H. is thermostaticall controlled it will still loose heat through insulation and exposed fitting on the cylinder.

Product Description Cost saving kWh Saving COЇe(kg)

Saving Cost of changes

Payback period

7 Day Time clock £87.81 2,042 1,123 £282.27 3.21

Space heater above main

entrance The sapce heater is left switched on when most of the employees have left the building, a time control will give effective use of the heater.

Product Description Cost saving kWh Saving COЇe(kg)

Saving Cost of changes

Payback period 7 Day Programmer 16

amp hard wired £765.02 17,791 9,785 £178.70 0.23

Total Saving £852.83 19833.2 10,908 £460.97 0.54

Time Controls

Time control is an effective method of making substantial savings with a small outlay and minimal disruption.

(11)

Edd:e is a unique energy monitoring and targeting product, designed, manufactured and installed by Utilitywise. The system offers the most sophisticated, detailed level of business electricity

consumption reporting available today. This includes an overall site consumption level,

categorisation by type of consumption (e.g. lighting, air conditioning), by location (e.g. warehouse, first floor office, factory floor), time of day, weekday, weekend and individual circuit level.

Customisable reporting allows clients to compare energy performance by location, outlet, and manager, and against budget across bespoke date ranges or intervals. Such detail allows for significantly more educated cost-saving initiatives.

www.ask-eddie.com

Edd:e

Board Name Location Phase No Of

Ways

Spare Ways

Maintenance building Canteen cupboard Single Phase 20 2

Administation Block Entrance Hall Three Phase 40 2

Main Factory Floor Entrance Cupboard Three Phase 30 2

The estimated cost for upgrade to all distribution boards with our Edd:e equipment is: £2845.92

Edd:e will on average show a way to reduce your energy consumption by 27% and with this saving will deliver a pay back period of 8.08 months for the cost of the installation.

The above cost is a guideline only please contact Utilitywise to discus your requirements then a formal quotation will be submitted on request.

Total electric billing cost is £15650.00 with a COЇ consumption of 139.21 tonnes

A saving of 40% is £6,260.00 with a COЇsaving of 55.68 tonnes

A saving of 27% is £4,225.50 with a COЇsaving of 37.59 tonnes

A saving of 20% is £3,130.00 with a COЇsaving of 27.84 tonnes

A saving of 10% is £1,565.00 with a COЇsaving of 13.92 tonnes

(12)

Module Location

Saving hierachy, we would recommend concentrating on these controls in this order Energy Saving (kWh per annum) Cost Saving Payback Period (yrs)

Lighting Garage 2 x 36W T8 - TLSF236/C2 Existing fitting, behavioral

changes 196 £8.43 0.00

Timers N/A Space heater above main entrance 17,791 £765.02 0.23

Other N/A Repair Leaking compressed Air Lines 28,000 £1,259.00 0.95

Other N/A Insulate Hot Water and Heating Pipework 6,000 £258.00 0.58

Water Male Toilet

facility

Tap Aerator Male/Female thread product code

9001-4010 185 £266.20 1.08

Water Male Toilet

facility Water Saving Shower Head Hand held product code 415 187 £340.66 1.78

Other N/A Replace Old 'Landlord' Boilers with High Efficiency

Condensing Type 7,500 £172.50 1.16

Lighting Workshop 2 x 24W T5 high output - SOLR224 13,344 £573.80 4.52

Water Office Toilet

block

Tap Aerator Male/Female thread product code

9001-4010 193 £277.29 2.25

Water Male Toilet

facility

Tap Aerator Male/Female thread product code

9001-4010 41 £64.23 0.62

Other N/A Consider Reducing compressed Air Operating Pressure 4,500 £148.50 2.02

Timers N/A Free Standing how water storage with Immersion Heater 2,042 £87.81 3.21

Water Male Toilet

facility

Cistern Displacement device product code

9001-4010-long £13.73 0.76

Lighting Administration

area 2 x 24W T5 high output - SOLR224 2,333 £100.32 8.86

Lighting Garage 3 x 28W T5 - SOLR328 2,359 £101.43 9.90

Lighting Workshop 1 x 70W HQI-TS - SDE70MBI 1,639 £70.48 11.14

(13)

Ref: 7

Energy Health Check

Name: Uk Car Body Ltd: Head Site Building Ref: 6 Whitehouse Lane

Address 1: Bristol Postcode: BS3 4DW

Site Details

21

%

£4,507

Potential savings at this site if performance was improved to match proposed savings:

Total Emissions (kgCOЇ)

227,281

Very efficient - lower running costs

Not energy efficient - higher running costs

Current Rating

Typical energy performance benchmark for this category of site corrected for degree days and occupancy:

Actual energy performance of this site:

How did you do? The calculated savings are based on actual surveys of similar properties across the UK over many years, the results of which contribute to the Nationally accepted benchmarks your building has been assessed against. Whilst we can be confident the projected savings are possible, ACTION must to be taken to realise these savings.

Total Benchmark Energy Cost: £16,818

Benchmark Energy Density (kWh/m²): 121

Total Benchmark COЇDensity (kgCOЇm²): 36

Total Annualised Energy Cost: £21,325

Actual Energy Density (kWh/m²): 141

Total Actual COЇDensity (kgCOЇm²): 45

91

91

91

91

91

91

91

Proposed Rating

116

116

116

116

116

116

116

Thu 12 Jul 2012

(14)

Additional Recommendations

In addition to those measures outlined above Utilitywise are able help reduce utility unit rate costs, comply with ever increasing mandatory energy certification requirements, CRC obligations and Carbon Offset programmes.

Utilitywise Account Care

The volatile nature of the business gas and electricity market has made product selection and purchase timing essential in protecting your spend. Utilitywise has direct relationships with every business electricity supplier in the UK. We offer a non-obligatory, free review of current client supply contracts and presentation of a full, tailored business proposal, including a range of supplier pricing.

www.utilitywise.com

Air Conditioning Inspections

As a result of Article 9 of the Energy Performance of Building Directive it is now a legal requirement that all air conditioning systems are inspected and an Air Conditioning Energy Assessment produced. The legal requirement notwithstanding there is some strong practical reasons to having your air conditioning inspected. Having your air conditioning system inspected by a qualified Energy Assessor is designed to improve energy efficiency, reduce electricity consumption, company operating costs and carbon emissions for your whole system.

At Utilitywise we have a national network of qualified air conditioning inspectors ready to help you comply with your legal obligation.

Carbon Zero for energy

Research by the Carbon Trust has shown that 70% of people want businesses to disclose their carbon emissions and 56% of people are more concerned about business’ actions to reduce their impacts on climate change than they were five years ago. Carbon offsetting enables businesses to set and meet carbon reduction targets immediately and cost-effectively, and deliver business benefits in the form of new customer acquisition, customer retention and employee engagement.

You can make the energy you purchase via Utilitywise carbon neutral. We will purchase carbon credits on your behalf to offset the carbon dioxide produced by the energy we manage for you. The price for these credits will be bundled into the unit price for your energy; in effect you will be offsetting as you go rather than in one bill at the start or end of a year.

(15)

Funding

Solar PV Feed in Tariff (FITs)

Feed in Tariffs (FITs) became available in Great Britain on 1st April 2010. Under this scheme energy suppliers have to make regular payments to landlords, property owners or businesses that generate their own electricity from renewable or low carbon sources. The FITs scheme guarantees a minimum payment for all electricity generated by the solar PV system, as well as a separate payment for the electricity exported to grid. These payments are in addition to the bill savings made by using the electricity generated on site. The annual subsidy will last for 25 years. Utilitywise can aid you in identifying the tariffs available and help you through the process of applying for them.

Renewable Heat Incentive (RHI)

The Renewable Heat Incentive is a payment system for the generation of heat from renewable energy sources. The first phase, to be introduced July 2011, will see cash payments made eligible to owners who install renewable heat generation equipment in non-domestic buildings. The RHI tariff depends on which renewable heat systems are used and the scale of generation. The annual subsidy will last for 20 years. As such, users will earn enough money from the tariffs to pay off their

installation costs in about five to nine years. At Utilitywise we can help identify those technologies that are eligible for the RHI and assist in the process of applying for them.

Carbon Trust Loans:

For customers in England and Scotland a new loan scheme offering competitive market rates was launched in April 2011. This scheme is a partnership between the Carbon Trust and Siemens Financial Services and will offer loans from £1000 with no upper limit. The Carbon Trust loans are designed to support the installation of non-renewable energy efficiency measures with a payback of 5 years or less, or the installation of renewable energy generation with a payback period of 7 years or less.

For customers in Northern Ireland or Wales a 0% interest loan is available for the installation of renewable or non-renewable energy saving measures. The loan pays £1000 for every 1.5 tonnes of CO2 saved, a minimum of £3000 is available.

References

Related documents

Comparing the long-term specific denitrification rate (SDNR) for nitrite and nitrate at lower COD/N ratio with acetate as a carbon source and characterizing

Đặc iệt trong lĩnh vực Y học, các hợp chất này đã và đang đƣợc nghiên cứu làm thuốc nhƣ thuốc kháng sinh, thuốc chữa cúm A, thuốc tim mạch…Nhiều hợp

In view of the benchmark test as described in the next chapter, it is worth noting, that the surfaces (maximum axial extension one nozzle diameter downstream

According to the findings on objective three, the statutory protection to the right to privacy against mobile phone usage does not provide direct clue as majority of the

Teachers at universities are facing an increasing disparity in students’ prior IT knowledge and, at the same time, experience a growing disengagement of the students with regard

assumptions regarding knowers, whether they be individuals or communities, that makes no allowances for the influence and role of social values and interests, nor the gender

In doing so, the literature cautions against integrated university study abroad programs by demonstrating how language proficiency that would enable students to study alongside

The summary resource report prepared by North Atlantic is based on a 43-101 Compliant Resource Report prepared by M. Holter, Consulting Professional Engineer,