Presentation on theme: "Energy Efficient Breakfasts Energy Management Training for Small and Medium Size Enterprises Cliff Bassett 13 th March 2012."— Presentation transcript:
Energy Efficient Breakfasts Energy Management Training for Small and Medium Size Enterprises Cliff Bassett 13 th March 2012
Introductions – About the Carbon Trust The Carbon Trust was set up by government as an independent company in Our mission is to accelerate the move to a low carbon economy. To date, we have helped our customers save around 29.5 million tonnes of carbon and around £2.6 billion in energy costs. As a Company Limited by Guarantee any profits we make are reinvested to help deliver our mission. We cut carbon emissions now; By providing specialist advice and finance to help organisations cut carbon By setting standards for carbon reduction
Outputs from this Briefing – The Energy Management Action Plan
The Energy Management Action Plan You have been provided with an Action Plan The following sections discuss opportunities which are relevant to the SME sector Please complete each part of the Action Plan at the conclusion of each section Use your own data if you have it, or the sample data provided Calculate the total potential saving Take your Action Plan back to your business and Take Action! Please leave the duplicate copy with us when you leave
Why Manage Energy?
Drivers for energy management Rising energy costs Complying with relevant standards and regulations Environmental concerns
Barriers to Energy Management Barriers to energy management: –Time –Resources –Just another job to do –Lack of expertise –Lack of capital –Landlord/tenant relationships
Energy Management Basics
Energy and Power
Power is the capacity of a device to transform energy from one form to another E.g. a boiler transforms stored chemical energy (gas) into thermal energy (heat) Power measured in Watts: 1,000 Watts = 1 kilo Watt kW Energy = Power x Time Energy measured in kWh
Units and Conversions Electricity –Kilowatt hours (kWh) – sometimes units Gas –cubic feet (ft 3 ) –hundreds of cubic feet (100 ft 3 ) –Cubic metres (m 3 ) Oil –litres
Units and Conversions Fuel UnitsConversion to kWh (multiply units by) Electricity - kWh 1 Gas – ft Gas – 100 ft Gas – m Gas oil – litres10.60 LPG - litres7.08 LPG - kg13.67 Aim to convert all units to a common currency – usually kWh See Carbon Trust Fact Sheet Conversion Factors for further details
Units and Conversions: Energy to Carbon (CO 2 ) Fuel UnitsConversion to kgCO 2 (multiply units by) Electricity kWh0.545 Natural Gas kWh0.185 Gas Oil kWh0.275 LPG kWh0.214 Source: DECC Greenhouse Gas Reporting Guidelines 2010 Divide by 1,000 to get tCO 2 See Carbon Trust Fact Sheets Conversion Factors and Carbon Footprinting for further details
Example Calculation – Lighting How much energy do the lights in this room use? What is the cost? What are the emissions?
Example Calculation - Lighting 1.How many Watts do the lamps use each? 2.How many lamps? 3.Multiply together to give power demand in Watts 4.Divide by 1000 to give kilo Watts (kW) 5.How many hours per day, days per week, weeks per year? 6.Calculate hours per year and multiply by power demand to give energy use in kWh/year 7.Convert to cost (x p/kWh) and carbon (x kgCO 2 /kWh)
Check Time and Temperature Controls Time Controls: –Match start and stop time to occupancy –Adjust to match Summer/Winter time – do not allow 1 hour float to cover both –Avoid excessive start up times - adjust throughout the season –Check controls regularly – ensure that they cannot be over-ridden
25 Top tip: Time Control
Check Time and Temperature Controls Check location and condition of thermostats Are they tamperproof? Are they representative of the actual temperature? –Thermostats should not be near heat sources (inside or outside) –Avoid draughts/near windows etc. –Locate internal optimum start sensors in coldest part of building/heating zone –Check location for local unrepresentative activities
Check Time and Temperature Controls Temperature – what is appropriate? Is 23 0 C really the right thing to do? UK guidelines for heating workplaces: –Heavy work 13 0 C –Light work 16 0 C –Sedentary (sitting) work 19 0 C –Offices 20 0 C
Thermostatic Radiator Valves (TRVs) TRVs provide basic, local control of temperature Can be used to set a comfortable working temperature for staff Make sure staff know what they are and how they are used Ensure valves are not obstructed
29 Top tip: Temperature Control
Carbon / Cost Alert!!! Look out for the use of portable electric heaters These are symptomatic of wider problems with the heating system They cost you money and have high carbon emissions They upset heating system controls and make problems worse Fix the root cause of the problem
Upgraded Heating System Controls Optimum Start Control (or Optimiser) –Think of it as a weather-dependent timeswitch –Reduces heat up times in mild weather –Optimum stop facilities also available – will switch off the heating early if possible –Easy to retrofit, but requires additional sensors
Upgraded Heating System Controls Weather Compensation Controls - vary system flow temperature in response to outside air temperature Requires modifications to pipework and additional sensors
Time control Optimum safe storage/delivery temperature –60 0 C is the optimum in most cases Minimisation of standing losses – better insulation Direct fired heaters – better for high volume all year round Local electric heaters - can be appropriate in some circumstances Domestic Hot Water Services
Boiler Plant, Space Heating and Domestic Hot Water – Summary and Action Plan Opportunity Description Typical savings Please tick Proposed Action Action by whom? Your SavingsCapital Cost % £/ year tCO2/ year Are boiler and heating time controls set correctly? 10 to 30% None Is the heating setpoint appropriate to the use? 10% None Is the domestic hot water setpoint appropriate? 2% None Are boilers, domestic hot water cylinders and pipework well- insulated? 1 to 3% Low Can timeswitches be upgraded to optimiser controls? 10% Medium Can weather compensation controls be installed? 10% Medium Sub-Total Boiler Plant, Space Heating & DHW
Lighting and Lighting Controls
Use of Lighting Is lighting being used appropriately?
Use of Lighting Are the lights switched off when people leave?
Lighting Controls Time schedules Dimming controls –Can be used on fluorescent lighting when specified with dimmable ballasts Occupancy-sensing –Passive infra red –Microwave Daylight-linked –Photocell
Lamp Efficiency Measured in lumens/watt (efficacy) Higher efficacy = more light for less energy Choose efficient lamps and fittings, appropriate to the application Avoid over-lighting. Insist on an engineered solution, with light levels appropriate to the use. Consider the efficiency of the fitting itself – some lose over half of the light by directing it the wrong way! Upgrades can give savings of 20% to 80%!!
Lamp Efficiency Less Efficient –Tungsten filament (GLS) –Low voltage tungsten halogen –Older T12 (38 mm diameter) fluorescent tubes –Mercury vapour lamps More Efficient –Compact fluorescent lamps –T5 or T8 fluorescent + high frequency controls –LEDs (still a developing technology) –Metal halide –Low and high pressure sodium
Lighting – Summary and Action Plan Opportunity Description Typical savings Please tick Proposed Action Action by whom? Your SavingsCapital Cost % £/ year tCO2/ year Are lights being used effectively? 1 to 5% None Do staff switch off lights when not needed? 5 to 10% None Are lamps and fittings efficient - can they be upgraded? 20 to 80% Medium/ High Can occupancy- linked controls be installed? 10% to 20% Low/ Medium Can daylight-linked controls be installed? 10% to 20% Low/ Medium Sub-Total Lighting and Controls
Ventilation and Air Conditioning
Air Conditioning Controls Basic controls: –Time –Temperature Local systems (splits or cassette-type) have local controls Usually more complex controls for larger systems –Stand-alone controls or building management systems (BMS)
Check Air Conditioning Controls Similar rules to heating: –Reducing operating hours by one hour/day may save up to 10% –Avoid over-cooling by increasing cooling setpoints as high as possible: –A 1 0 C increase in temperature can save around 10% in cooling energy
Upgrade Air Conditioning Controls Complex systems need specialist advice, but there are good savings available through: –Use of free cooling –Installation of variable speed drives on fans –Demand control systems
Ventilation, Cooling and Air Conditioning – Summary and Action Plan Opportunity Description Typical savings Please tick Proposed Action Action by whom? Your SavingsCapital Cost % £/ year tCO2/ year Are air conditioning time controls set correctly? 10% to 30% None Is the cooling setpoint appropriate to the use? 5 to 20% None Can air conditioning controls be upgraded? 10 to 30% Medium/ High Sub-Total Air Conditioning and Ventilation
Typical Power Use by Office Equipment EquipmentEstimated Power Use (Watts) PC – Base Unit80 W PC – 17 LCD Monitor15 W PC – 17 CRT Monitor70 W Laptop50 W Inkjet Printer40 to 80 W Laser Printer90 to 130 W Multi-function Printer150 to 250 W Fax30 to 40 W Mobile Phone Charger5 to 15 W 42 LCD TV250 W
Office Equipment – Behavioural Change Raise staff awareness Challenge myths –Logging off is not the same as switching off –Screensavers dont save energy –Does the IT department really require all equipment left on overnight? –Does the server room need to be kept at 16 o C? Audit work areas after hours – scoring system? Enable power management features on equipment
Other Equipment Vending Machines – non-perishable –Fit timer to switch off at night Vending Machines – perishable –Switch off lights at night if possible Water coolers –Fit timer to switch off at night Cooling fans –Avoid if possible – these add heat!
Office Equipment – Summary and Action Plan Opportunity Description Typical savings Please tick Proposed Action Action by whom? Your SavingsCapital Cost % £/ year tCO2/ year Are PCs and office equipment switched off at the end of the working day? 10 to 20% None Can timers be fitted to water coolers, vending machines and other equipment? 10% Low Can office equipment be rationalised? 10% Low Can equipment be upgraded? 30% Medium/ High Sub-Total Office Equipment
Conducting an Energy Walkround
Energy Walkround Guidelines Try to focus on the main areas of energy use Aim to identify: –Quick wins – mainly around behavioural change or control settings –Technical areas where capital may be required, e.g. improved controls –Technical areas requiring expert advice, e.g. replacement plant, or systems obviously not functioning correctly Try to quantify savings: –Look at easily quantifiable uses, e.g. lighting or IT –What can you tell from energy data?
Quick Wins No.1 - Check the control settings! –If you have half-hourly electricity data – look at it! –Are there any controls? Do they work? –Do the time settings match the occupancy? –Check all days – do you have a 24-hour or 7-day timer? –Are the temperatures appropriate? –Do staff complain? Too hot/cold? Too draughty? –Is there evidence of portable heaters or coolers in use? –Do thermostatic radiator valves work correctly? Do staff know what they are and how to use them?
Quick Wins Look at staff behaviour: –Are lights left on when theres no one around? –Do staff know what is the right thing to do? –Would lighting controls solve the problem, or would a switch off campaign be enough? –Do staff leave PCs and printers on after hours? –Can staff be asked to switch off monitors when on breaks? –Are windows opened when the heating is on? –Are heating and cooling used at the same time? –What can we do to help?
Constructing Your Action Plan
The Energy Management Action Plan Did you complete each part of the Action Plan at the conclusion of each section? Use your own data if you have it, or the sample data provided Calculate the total potential saving Take your Action Plan back to your business and Take Action! Please leave us a copy of the Action Plan at the end of the Briefing
Feedback Form Please leave your Feedback Form on your table or hand in on exit
Summary and Close
Recognition for real carbon reduction Gain recognition for your carbon reduction Communicate your carbon credentials with integrity Robust certification based on strict criteria and detailed assessor audit The experience of striving for carbon accreditation…was hugely beneficial – from a financial, ethical, operational and reputational point of view and demonstrated the value of applying for the Carbon Trust Standard - Richard Pamenter, Head of Sustainability, GlaxoSmithKline Certify Measure Manage Reduce Visit or call for more information The Carbon Trust Standard:
Sources of Funding Finance for energy saving projects; Carbon Trust and Siemens have joined forces to offer flexible financing from £1k upwards. Enhanced Capital Allowances (ECAs) are a straightforward way for a business to improve its cash flow through accelerated tax relief.
Carbon Trust Implementation Services Many UK businesses need support to implement energy efficient equipment. Often there is a challenge to establish the business case, source first class suppliers and obtain a robust set of proposals for projects. We help you meet these challenges and make it easy to find high quality suppliers and projects. Download our service guide PFL043 or call us now on to find out more.
66 Carbon Trust Website Dedicated section for SMEs First steps for small businesses and information specifically about your sector or the technologies you use Online cut carbon cut costs training tool Visit Get Practical & Free Advice Expert in Energy series Free monthly low carbon business guides, web advice and webinars Designed to help businesses save money and reduce their energy use
New employee engagement tool – Carbon Trust Empower
Free Energy Saving Plan Open Monday to Friday, 9am to 5.30pm Call Tick the box on your feedback form if youd like us to contact you for an ESP! The Carbon Trust Advice Line can give you guidance and support on how to assess the energy use on your site. We also offer practical advice on how to take action, improve efficiency and reduce costs. We can also provide you with a structured Energy Saving Plan: A bespoke free service that guides you and your business through how to take simple measures to detailed technical support A tailored report highlighting the areas of opportunity and guidance on implementation with links to further online advice Advisors on hand to offer support and answer any questions