Clamason Industries Ltd Case Study

by | Jan 21, 2020 | Case Studies

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ENERGY MANAGEMENT SURVEY (EMS) GIVES CLAMASON INDUSTRIES INSIGHT INTO ENERGY USE

THE CLIENT

Midlands based Clamason Industries Ltd (Clamason) are one of Europe’s leading manufacturers of precision pressings and stampings.

An environmentally conscious company, Clamason were keen to explore options to reduce carbon emissions and save on energy costs.

SMARTech energy were approached to carry out an energy management survey (EMS) – with the aid of energy monitoring to establish how to reduce Clamason’s utility consumption costs and improve the energy management within the business.

Our report provides a detailed, impartial appraisal and return on investment for solutions specific to their business issues and opportunities.

 

THE SURVEY

The site has a net total energy consumption of more than 3,000,000 kWh for electricity and gas per year.  The site is split into four units, namely Unit 2, Unit 7, Unit 8 and Unit 9. The proportion of the electrical and gas energy costs are detailed below:

Particulars Annual Electrical Energy Bills % Annual Gas Energy Bills Annual Total Energy Bills
Unit 2 28.24% 4.94% 33.19%
Unit 7 2.46% 1.34% 3.80%
Unit 8 11.40% 1.86% 13.25%
Unit 9 39.53% 10.23% 49.76%
TOTAL 81.63% 18.37% 100%

 

HOW WE HELPED

The SMARTech energy management survey looked at how, when and where this energy is being used. It has identified total approximate savings of 53.37% for the electric savings interventions and 5% for gas savings interventions.

This represents a technically and economically validated opportunity to prevent ongoing energy waste. For example, if these savings had been identified and implemented five years ago, the site would have avoided a bill of more than £500k in utility charges (based on present tariffs).

Our report presents opportunities to manage future utility spend and offers savings that will compensate for predicted electricity price inflation. 

SMARTech energy proposes a method that will help avoid this energy waste and provide an opportunity to promote carbon savings measures.

From our energy management survey review, the following areas are examples where improvements can be can made using specified solutions:

LED Lighting Strategy
SMARTech energy suggest an optimised LED lighting solution to reduce Clamason Industries’ annual energy cost and provide far better lighting quality, optimised across the site. By switching to LED lighting, Clamason Industries will also see a reduced demand in ampage, this may enable the site’s kVA capacity to be reduced to achieve additional savings.
Voltage Optimisation
By implementing Voltage Optimisation, a solution that is fitted to the main incoming supply, SMARTech energy can reduce the voltage necessary to run the site. This decreases demand and achieves significant savings. This solution also protects Clamason Industries’ equipment by reducing heat and vibration, lengthening the lifespan of their electrical equipment with no effects on performance.
Power Factor Correction
Power factor correction improves the power factor in the main incoming supply by compensating the inductive reactive power with capacitive reactive power. SMARTech energy recommend installing power factor correction in Unit 2 and Unit 9. This will reduce the reactive power charges as well as kWh losses in the system and save energy.
Motor Optimisation System
Majority of motors in all of the four units work on varying torque loading condition. Since the motor themselves produce a nearly constant torque, even at reduced load or no-load torque, the motor tends to produce high driving torque and thus consume disproportionately high energy. Therefore, we recommend installation of motor optimisation system called ‘Integra’. This system matches the motor driving torque with the required torque of the load. This ensures energy saving during reduced torque requirements.
Solar PV for Unit 8
SMARTech energy recommend the installation of a 50-kW system for Unit 8. It is planned to use the entire generated energy at site to mitigate the electrical energy consumption from the mains supply for Unit 8. This being a renewable energy intervention will provide long term energy generation at site and protect against increasing energy prices.
Compressor Upgrade
SMARTech energy recommend the replacement of the existing compressors with new high efficiency rotary vane compressors with variable speed drives. This solution will provide upto 45% of energy savings as compared to the existing compressors. Variable speed drives enable the compressors to operate at reduced speeds when the compressed air demand fluctuates in the plant. Operating the compressors at lower speeds result in energy savings and improved compressor life.
Baseload Reduction
Units 2 and 9 are in operation 24 hours a day, but the production process is at nominal output between 11 PM and 5 PM. The baseload during this period for Unit 2 and 9 is 17 kW and 34 kW respectively. Unit 7 and 8 are operational between 6 AM and 11 PM. The baseload for Units 7 and 8 is found to be 1.4 kW and 11 kW respectively. A high baseload results in wasted energy because it is not accounted for against any production in the units. For the baseload optimisation, our intervention would include further energy monitoring using our state-of-the-art equipment, another site visit and specific audit during off-peak hours. This allows SMARTech energy to identify culprit appliances and human habits to produce an optimal energy saving plan for site implementation.
kVA Decrease
Once implementing SMARTech energy’s solutions, we can reassess the maximum capacity expected to be drawn from the site. This allows us to provide Clamason Industries with the correct limit to set with your energy contractor. It is predicted that for Unit 2 upto 70 kVA of electricity demand can be reduced at site. Similarly, for Units 7, 8 and 9, it is estimated that upto 10 kVA, 15 kVA and 85 kVA contract demand can be reduced. This will save on charges that you are likely to not need to be paying.
Smart Gas Savers
Installing SMART Gas Savers on site will aid in improving the gas combustion efficiency to reduce gas consumption in the gas heaters by up to 10% and corresponding gas energy bills on site.

THE RESULTS

The entire energy management survey as it has been presented, provides an opportunity to save 29.5% on annual energy spend.

  • Achieving total Co2 savings of 271.7 tonnes per year
  • Total ROI of 2.7 years

The finalised report gave recommendations for areas of improvement.  By implementing these recommendations, Clamason Industries will reduce their company’s electricity bills, carbon footprint and show improved profits.

Customer Feedback

Steve Daveport, Supply Chain Director for Clamason Industries:
“SMARTech energy’s presentation was good – including the quotation and the way that they came and presented it.  We’ll end up saving a lot of money working with SMARTech energy”.

CONTACT US

Call our southern team on 01225 635 660 or our northern team on 01482 688 555 for more information on this case study and how we can help your business or organisation.

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