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Support for Energy Efficiency

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Presentation on theme: "Support for Energy Efficiency"— Presentation transcript:

1 Support for Energy Efficiency
Donagh Moorehead – Client Manager

2 Potential for significant cost effective energy efficiency improvement
Source: Performance & Innovation Unit, February 2002

3 How the Carbon Trust can help your business
Understand your carbon footprint Identify saving opportunities Access the best knowledge Finance your energy plan Energise your employees Achieve sustained energy reductions Show your carbon commitment

4 Implemented Site Survey Savings by Technology
Our primary method for delivering cost effective Energy/Carbon savings to businesses right now are a range of free technical surveys carried out by independent specialist consultants approved and sourced by the Carbon Trust. 2,200+ surveys £100m+ investment £70m+ pa saving Source: Carbon Trust survey analysis 2008

5 Site Survey Case Study – Local Engineering Company
1,233 206,432 3,655,805 Total Energy 5 0.8% 1,556 0.6% 23,684 LPG 510 26.1% 53,946 53.7% 1,961,989 Fuel Oil 718 73.1% 150,930 45.7% 1,670,132 Grid Electricity tonnes % £ / year kWh/ year CO2 emissions Cost Purchased Energy Utility

6 Site Survey Case Study – Local Engineering Company
0.71 32,850 761,131 260.5 46,442 Total - ICT - General Awareness 9 0 - 3 Months 0.52 5,000 97,495 42.0 9,652 Factory Extraction System Drive Motor - VSD 8 1.35 350 2,868 1.2 260 Lighting Considerations - Sensors 7 1.01 15,000 149,983 64.5 14,848 Factory Lighting - Upgrading 6 294,989 76.5 8,092 Steam Boiler Plant - Heating & DHWS 5 0.76 2,500 33,006 14.5 3,268 HP Air Compressor System - Leakage 4 3 - 6 Months 0.97 10,000 182,790 61.7 10,322 Implement Training & Awareness Programme 3 0.0 Raise Staff Awareness 2 Energy Policy Development 1 kWh tonnes Energy Savings CO2 Savings Financial Savings Suggested Timescale for completion Payback period (years) Estimated Cost of Measure Estimated Annual Savings Recommendations and Key Actions Priority

7 Site Survey Case Study – Local Engineering Company
Energy Consumption Guide 40 – Compressing Air Costs, Generation Energy Consumption Guide 41 – Compressing Air Costs, Leakage Energy Consumption Guide 42 – Compressing Air Costs, Treatment Relevant Publications: Carry out full leak survey. Identify and log issues. Develop action plan within shutdown/quite periods to fix leaks. Subsequent to this it is recommended that the systems be considered for 3 -monthly air audits by on site staff. Obtain publications from the Carbon Trust. Next Step: Increased costs and poor control of a very expensive commodity. H.P. air is a very useful process tool but requires significant investment in its upkeep and ongoing maintenance. Plant access to equipment may be difficult due to operational needs. Risks: Leaks represent a significant waste of energy. Leak surveys and the subsequent repair of those leaks should be part of a pro-active maintenance regime. Pressure regulation is a fundamental ‘good practice’ requirement of compressor management. Compressed air is expensive’ – it costs the equivalent of c50p/kWh. Rationale: The main air compressor units and associated drier are sited in a dedicated area in an outbuilding to the side of the manufacturing area. The system provides compressed air at 7bar gauge via a piped delivery system that does not form a complete ring-main. Two in number compressors supply the system: 1 x Mattei 350, 55kW constant speed machine – currently only used as back up in the event of failure. 1 x VS Electra saver, 75kW variable speed drive unit. This unit provides for the normal daily supply of compressed air. Leak Checking Leak checking is not carried out currently as a pro-active maintenance regime. Consideration needs to be given to addressing this issue in the immediate future as significant leakage was identified on the compressed air systems - these are a high cost to the operation and seriously reduce the overall system efficiency. Most compressor systems can save upwards of 30% in energy by simple measures such as identifying and fixing leaks. Reference: Energy Consumption Guide (ECG 41) Industry leakage can be as much as 40% - For the purposes of calculation 30% leakage is assumed - and reduced by survey and repairs as required to 10%. Calculation above considers the variable speed machine at an average 65% utilisation and repair costs of £ A leak survey can be completed within 1-2 days on a site of this type and size would cost within £ , due to access and safety requirements. Successful leak management requires a strict cleaning and maintenance regime in order to sustain the significant savings. Plant/process air leakage was evident throughout the manufacturing areas - in particular on the use of flexible connections and air tools and filter/regulator units on machines. Detail: Payback 0.76 Years Cost £2,500 (estimate) Energy Savings 33,006 kWh/year CO2 Savings 14.52 Tonnes/year Cost Saving £3,268 per year H.P. Air Compressor – System Leakage Priority 4

8 Site Survey Case Study – Local Engineering Company
CIBSE (Chartered Institution of Building Services Engineers) offer lighting guides for refurbishment & new build options, i.e. LG1 – industrial Lighting. Some case study literature from the Carbon Trust may be of relevance to this sites operation. HSE (Health & Safety Executive) publication, ‘lighting for work’. Lighting Guide 006 – Carbon Trust Relevant Publications: Contact Author / Lighting professional to have lighting schemes reviewed. Contact proprietary owner (Chalmor) or original contractors to re-instate lux controllers and set up central controller. Claims against the original contractor may be difficult without sufficient evidence and facts re original specification etc. The controller is open circuited in several out stations and from on-site discussions (CT Consultant with proprietary Technical Support Engineer) it would appear that the original settings have been tampered with or where never set correctly hence no control exists for daylight factor integration. The position of the lux sensors also requires investigation as excellent daylight is available via the roof lights and current sensors do not appear to be placed in a representative layout to maximise control. Lighting equipment is included in the ECA Energy Technology List. Contact author for further information and/or go to: Section 5.5 provides further information on ECA. Next Step: Lighting needs to be considered in respect of lux levels etc. this will obviously have to be a managed and controlled in full consideration of both area task and Health and safety requirements. A project of this nature would need operational, technical and quality control approval in line with the business function. It may well be an option to have a mixed lighting scheme, which can still deliver savings. Costs are not quotes. It is worthy of note at this point to state the ever increasing costs of electricity will have a impact on this calculation and hence the project. Savings originally predicted for the photocell operation have increased from £3,826 to £5,740 at current prices. Savings shown include for converting existing twins to singles (reflected with HF control gear). Considers T8 lamps as existing – T5 could be used with adaptors currently available to the market OR new units incorporating T5 lamps; the latter option would extend paybacks and would possibly be the least favoured option due to expenditure already incurred. Savings do not include energy saved by switching off circa 15% of the detailed lights that are illuminated above no/reduced occupancy areas e.g. old machine stores by bay 1, occupancy sensors for overhead lighting for integral open ceiling stores etc. A further ‘Full’ lighting survey will allow firm quotes to be generated (e.g. check condition of lamp fittings and assess suitability for twin to single upgrade, confirm lighting design layouts are appropriate for area functions, re-design options considered from an energy efficiency perspective may offer additional benefits in respect of lighting levels, etc.) Risks: T8 fluorescent tubes use 8% less energy compared to the older T12 fluorescent tubes. T5 tubes can offer up to 50% energy savings plus increased lumens/watt (light output). Retrofit upgrade option by replacement of internal gear, single lamp, high frequency control gear and reflector provide savings estimated as: Lighting controls will provide at least 20% saving in this factory if applied through correctly applied lux sensors, occupancy detectors and a centralised controller correctly set and with ease of operation. Rationale: Upgrades to the factory lighting have been carried out in recent years (actual date not known due to change of staff but believed to be within past 1-2 years). The upgrade information (fine detail) is not fully documented so comments are made in respect to what is currently existing against what could be attained through re-visiting this project and further enhancing the savings. Original upgrade scope was to replace old fittings in operational bays only i.e. bays 2,3 and 4; with High Frequency twin and single open batten fluorescents utilising Triphosphor colour 840 lamps. In addition to fit 6 in number photocells to allow interaction of daylight factor into the lighting scheme. Total energy savings predicted where £16,109 with a payback of 1.48 years. Currently the lighting scheme is as stated above with the following exceptions; Daylight control via the sensors is not operational – and is stated as having never been operational. 2 Fitting of twin lights to some areas i.e. end rows where skylights are not fitted – this is considered as extra lighting possibly due to the closed roof area however it is considered that single reflected units could have been used here and interacted with some daylight that presents itself from the glazed walling areas at the end of the factory. 3. Zoning of the lighting scheme is effectively none existent with several large areas being lit when no/intermittent occupancy (and in some cases redundant areas) occurs. 4. Adjacent areas such as washrooms and link corridors have not been included in the upgrade and remain lit with mains frequency controlled twin fittings etc. These issues need to be corrected in order to ensure full and effective control is achieved and predicted savings are identified, achieved and sustained. Detail: Payback 1.01 Year Cost £15,000 (estimate) Energy Savings 149,983 kWh/year CO2 Savings 64.5 Tonnes/year Cost Saving £14,848 per year Factory Lighting Considerations Priority 6

9 Energy Efficiency - Cutting carbon now
Key achievements in Northern Ireland include: Saving our customers over £70m per annum through reduced energy bills Reducing carbon emissions by over 685,000 tCO2 per annum Stimulated over £100m of investment in energy efficiency and low carbon technologies Identified a further £100m+ pa of energy savings and associated carbon savings of nearly 1mtCO2 Awarded over £11m in interest-free loans to enable 212 local companies to invest in energy and carbon saving technologies that will reduce their energy costs by over £5m pa Over 6,300 delegates have attended 115 low carbon skills and knowledge transfer seminars and workshops

10 Interest-Free Loan Scheme
The objective of the Carbon Trusts loan scheme is to encourage end-user investment in energy efficiency & renewable energy projects. Key features of the NI Loan Scheme: £3,000 to £400,000 0% Interest No other fees Unsecured Repayment period reflects energy payback – up to max 48 month Minimum ‘red tape’ Loan offers can be made in 2 weeks from receipt of a complete application

11 Loan Scheme Project Type
212 loans offered £11.7m dispersed £5 m saving Over £27m total project costs

12 Significant potential for cost effective energy efficiency improvement
Case Study : NI compressed air initiative Electricity Spend = £7.6m Cost savings = £2.3 pa Implementation costs = £3.0m Payback = 16 months Percentage savings = 31% tCO2 savings = 26,409 pa Electricity savings = 42 GWh pa Ref: CTS010, Mar 06

13 Energy effective lighting case studies
Montupet – new lighting scheme T12 to T5. Capex of £110,000 offers annual savings of £130,000 and reduces CO2 emissions by 1,022 tonnes pa. Armaghdown Creameries – more efficient metal halide lamps, repositioned with daylight control. Capex of £4,000 offers annual savings of £1,000 and reduces CO2 emissions by 3 tonnes pa. Ref: CTS011, Mar 06

14 Refrigeration & Lighting case study: Henderson Group (Retail)
Bespoke partnership with family-owned business incorporating five companies and 400 independent retailers and 55 company-owned convenience retail outlets and petrol stations throughout Northern Ireland Lighting Typical energy savings of 25% Payback on additional cost was 0.8 years Refrigeration Typical energy savings of 17%. Payback was immediate “Given the continual increase in energy costs, we have made a conscious effort to reduce our energy consumption and CO2 emissions. With the support of the Carbon Trust and the conclusive findings of the energy audits, we have been able to implement energy-efficient corporate refrigeration and lighting specifications which satisfy our objectives and provide an enhanced retail environment at reduced operating costs.” Philip Wright - Senior Property Manager

15 CHP & Energy Management: Ryobi Aluminium Castings Ltd
Highly successful partnership with a global corporation. Projects to date include: 1.4MWe CHP Process EMS Compressed air modifications Expert plant utilisation study Annual electrical and thermal energy savings of more than £250,000 Emissions savings of approximately 1,150 tonnes CO2 per annum Nearly £1m investment in energy efficiency over the past three years, offering a simple payback of about 3.3 years “Ryobi’s senior management has been very supportive of the various projects that we’ve initiated to reduce energy costs. Each success opens our eyes to further opportunities.” Edwin Turner – Facilities Manager

16 Heat Recovery: Ulster Carpets
Consumption of heavy fuel oil has been cut by over 300,000 litres pa The time required for dyeing was cut by over 10%, increasing the throughput The water to be discharged is now cooler, so additional cooling is no longer needed Annual cost savings of £68,000 Payback <10 months CO2 savings of ~1,000 t pa “Ulster Carpets places great importance on managing its environmental impact. The company has been delighted by the energy saving results of this project.” George Ussher – Technical Service Manager

17 Bombardier Aerospace Metering monitoring & targeting
New natural gas boiler installation Lighting upgrades CDA optimisation New boilers Cultural transformation Gas consumption Reduced by 7% Electricity consumption Reduced by 8% HFO consumption Reduced by 100%

18 Pritchitts New high efficiency steriliser unit Heat recovery
Dew point sensing control to CDA system Staged evaporative condenser installation Magnetic bearing turbo compressor installation Capital Cost £1,000,000 Annual Cost Savings £2,000,000 Company Perspective ‘I can honestly say that we have never lived to regret any of our investments in energy efficiency.’ Alan Flack, Engineering Manager, Pritchitts

19 David Kelly, Energy Manager at LaFarge Cookstown
Centralised air compressors Variable speed drive compressor Increase the size of CDA pipework Zero purge desiccant dryer Reduced maintenance Interest free loan Enhanced capital allowances Capital cost £295,000 Interest free loan £200,000 Annual cost savings £80,000 Annual CO2 savings 566 tCO2 Simple Payback 3.7 years Company Perspective ‘Specialist implementation advice, an interest free loan and Enhanced Capital Allowances combined with and significant energy and maintenance savings made this project a an all-round winner.’ David Kelly, Energy Manager at LaFarge Cookstown

20 3Y Group Replacement dual fired heating system.
Modern process extraction. 1,400 kW waste wood & dust boiler Saving 2,000 MWh Replacement process equipment Single new machine replacing 3 old inefficient machines Reduced energy consumption of 200,000 kWh Capital cost £270,000 Interest free loan Annual cost savings £72,576 Annual CO2 savings 502 tCO2 Simple Payback 3.7 years Capital cost £90,000 Interest free loan £60,000 Annual cost savings £18,076 Annual CO2 savings 90 tCO2 Simple Payback 3.3 years

21 FP McCann Insulated Silo for recycled product
Installation of aggregate sheds to ensure drier product Capital cost £36,500 Interest free loan Annual cost savings £14,424 Simple Payback 2.7 years Company Perspective ‘These projects will help make FP McCann more energy efficient and commercially competitive through the significant reduction of unnecessary energy consumption. We take our responsibility to the environment very seriously and strive to reduce carbon emissions. The Carbon Trust has been most helpful in highlighting and implementing a number of energy saving projects that benefit both the environment and our company’ Don Mulholland, Financial Director – FP McCann Limited

22 Dale Farm Replacement of existing chilling system with a single energy efficient unit utilising high efficiency motors and heat recovery. Upgrading of thermal insulation at both the Pennybridge and Dunman sites to current best practice standard. Capital cost £250,000 Interest free loan £200,000 Annual cost savings £50,000 Annual CO2 savings 323 tCO2 Simple Payback 5 years Capital cost £30,000 Annual cost savings £60,000 Annual CO2 savings 1,900 tCO2 Simple Payback 2 years Company Perspective As a leading dairy, Dale Farm strives to be best in class in all its activities. The company has an ongoing programme of continuous improvement, which includes a strong focus on energy efficiency to both reduce utility costs and respond to the threats posed by sustainability issues around hydrocarbon energy sources. We appreciate the assistance of the Carbon Trust in the outworking of this programme and will continue to work closely with them in the future. Gary Shields, Energy Manager – United Dairy Farmers


24 Carbon Trust Publications

25 Making Business Sense of Climate Change
For further advice and to access the services from the Carbon Trust, visit our website at: or ring our customer centre on: The contents of this presentation are the copyright of the Carbon Trust and may not be copied or republished without the prior written consent of the Carbon Trust. The trade marks, service marks and logo used in this presentation are the property of the Carbon Trust and no licence or right is granted to use any such marks or logo.

26 Improving resource efficiency - business opportunity
Summary Improving resource efficiency - business opportunity Makes business sense CSR Competitive advantage Carbon Trust has the experience and expertise to help opportunity identification and quantification implementation assistance financing.

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