Newsletter Riddle – June 2024

What is most useful when it is broken?



An egg

May 2024 Newsletter Riddle

There’s a one-storey house in which everything is yellow. Yellow walls, yellow doors, yellow furniture. What color are the stairs?


Answer:  There are no stairs – it’s a one storey house.

Biomass Boilers

Biomass boilers are heating systems that use organic materials, such as wood pellets, wood chips, or agricultural waste, to generate heat for buildings or industrial processes. These boilers operate similarly to conventional boilers, but instead of burning fossil fuels like oil or gas, they burn biomass materials.

Biomass boilers are an environmentally friendly option because they use renewable organic materials as fuel and help reduce dependence on fossil fuels.

Biomass boilers offer several benefits, both practical and environmental. These include:

  • Renewable Energy Source:
    Biomass is a renewable energy source, as it comes from organic materials such as wood, agricultural residues, or dedicated energy crops. Unlike finite fossil fuels, biomass can be continually replenished through sustainable forestry and agriculture practices.
  • Reduced Greenhouse Gas Emissions:
    Biomass boilers produce fewer greenhouse gas emissions compared to fossil fuel-based boilers. While burning biomass does release carbon dioxide (CO2), the plants used for biomass absorb CO2 from the atmosphere during their growth, creating a closed carbon cycle. This results in lower net emissions and helps mitigate climate change.
  • Waste Utilisation:
    Biomass boilers can utilise various types of organic waste materials, including wood chips, sawdust, agricultural residues, and even municipal solid waste. By converting these waste materials into energy, biomass boilers help reduce landfill usage and provide a sustainable solution for waste management.
  • Energy Efficiency:
    Biomass boilers can achieve high levels of energy efficiency, especially when combined with modern technologies such as condensing heat exchangers and advanced control systems. This allows for optimal utilisation of the energy content in the biomass fuel, resulting in cost savings and reduced fuel consumption.
  • Versatility:
    Biomass boilers are versatile and can be used for various applications, including space heating, hot water production, and industrial processes. They can be sized to meet specific heating requirements and integrated into existing heating systems with relative ease.
  • Government Incentives:
    EECA’s Government Investment in Decarbonising Industry Fund (GIDI) has co-funding available for businesses wanting to switch from fossil fuels to low-carbon alternatives. Since 2020, the GIDI Fund has supported 12 businesses to switch from coal and gas to biomass boilers. To find out what funding may be available for your biomass boiler, check out

Biomass boilers should be considered by a range of industries including:

  • Food processing
  • Wood processing
  • Agriculture
  • Greenhouses
  • Manufacturing



If you can answer yes, to at least some of these questions – a Biomass Boiler could be a good option for your business.

  • Are you operating within 100km of a stable and sufficient biomass source to fuel your biomass boiler.
  • Do you require an environmentally friendly alternative to an existing coal, natural gas, diesel, or LPG boiler.
  • Is your electricity connection constrained or would it be costly or slow to upgrade? If so, a biomass boiler may be a better option than a heat pump or electrode boiler.
  • Does your plant have a high load factor (boiler utilisation rate) and/or high peak loads (maximum operating heat demand), meaning that fuel costs need to be as low as possible.
  • Is your existing coal boiler relatively new? Biomass boilers can be readily integrated into existing energy systems since the supply temperature and working fluid is generally identical to an equivalent coal or gas boiler.
  • Do you have or need a multi-boiler site and are looking for a mix of different fuels (e.g. electric and biomass powered boilers) to give you greater energy security or flexibility?
  • Do you have space to store (and keep dry) a sufficient supply of biomass to cover weekends and other transport issues?
  • Do you require temperatures over 100°C? Biomass boilers are a good option for this vs below 100°C where electric heat pumps are more energy efficient.

Overall, biomass boilers offer a versatile and environmentally friendly heating solution for a wide range of industries, helping to reduce reliance on fossil fuels, lower energy costs, and limit the impacts on our environment.

If you’re interested in installing a biomass boiler for your plant or want to put in place a regular maintenance plan to ensure you maintain optimal efficiency, then give the EAS team a call today on 07 834 0505.

Photo source:

Motor Control Centres

Motor Control Centres are the nerve centre of industrial automation and electrical distribution systems ensuring seamless operation of machinery and equipment in industrial and commercial environments.

A Motor Control Centre (MCC) is an assembly of one or more enclosed sections each containing components such as circuit breakers, contactors, overload relays and other components that help manage the power distribution, switching and protection of the electric motors in your system.

Benefits of Motor Control Centres (MCCs):

– Efficient power management
MCCs can include energy monitoring and management features to reduce energy consumption and improve motor performance –  all contributing to overall energy efficienty and cost savings for your plant.

– Reduced down time through improved monitoring & maintenance
The modular design of MCCS makes it easier to access individual motor starters and components, simplifying maintenance tasks and reducing downtime. MCCs can also be equipped with advanced monitoring and diagnostic features such as remote monitoring, fault detection and predictive maintenance capabilities which all help optimise motor performance and can identify issues before they lead to unplanned downtime.

– Safety and protection of the motors in your system
MCCs incorporate safety features such as circuit breakers, overload protections and interlocking mechanisms which all improve the safety of motor operations protecting both your people and your equipment from electrical hazards.

– Convenient and organised way of managing power distribution
MCCs provide a centralised location for managing multiple motors, saving valuable floor space and making it easier for operators to monitor and manage motor operations from a single point.
To keep your MCC in peak condition, regular maintenance is essential. This should include:
– Inspections:
Regular visual inspections should be done to check for signs of damage, overheating, losse connection or corrosion of MCC components including motor starters, circuit breakers, wiring, busbars an insulation.

– Testing & Calibration:
Protective devices such as overload relays and circuit breakers should be tested and calibrated to ensure they will operate when needed.

– Connections:
Electrical connections should be checked periodically to ensure they are secure and free of corrosion. Loose connections can lead to overheating and electrical faults.

– Cleaning:
It is essential that the MCC enclosure and components are kept clean and free of dust to ensure all equipment operates at peak performance.

– Cooling Systems:
If your MCC is equipped with a ventialtion or cooling system then the fans, filters and airlow pathways should be checked to ensure proper ventialtion and cooling of the MCC components.
Motor Control Centres offer a complete solution for motor control and power distribution, combining convenience, safety, and efficiency for your plant.
If you’d like to investigate a MCC solution for your plant or put in place a regular maintenance programme for an existing MCC, get in touch with the EAS team today on 07 834 0505.


December 2023 Newsletter Riddle

If Santa’s five elves take five minutes to make five dolls, how long would it take 100 elves to make 100 dolls?

Answer: 5 minutes

Halloween Riddles

Q: How do you fix a broken Jack-o-lantern?
A: With a pumpkin patch

Q: Why didn’t have the mummy have any friends?
A: He was too wrapped up in himself.

Q: What do you get if you cross a snowman with a witch?
A: A cold spell.

Circuit Breakers and the Importance of Testing

Circuit breakers are automatically operated electrical switches designed to protect an electrical circuit from damage caused by excess current from an overload or short circuit.
The basic function of a circuit breaker is to interrupt the current flow when a fault is detected. Unlike a fuse, which operates once and then must be replaced, a circuit breaker can be reset (either manually or automatically) to resume normal operation.
Circuit Breakers play a critical role in protecting expensive equipment in your plant. However, they can go long periods without activation, so it is essential that they are regularly maintained and tested. If they fail to activate when needed it could have catastrophic consequences for your staff and plant if an arc flash were to occur and would result in extensive damage to your plant’s electrical systems.

Primary & Secondary injection testing of your circuit breakers should be included as part of your Preventative Maintenance plan to ensure their reliability and safety.
Primary Injection Testing vs Secondary Injection Testing
Primary Injection Testing injects a multiple of the fault rated current of the breaker through the breaker to measure the trip time. 

Secondary Injection Testing injects a ratio of the fault rated current directly into the trip unit and measures how long the breaker takes to trip.

The primary tests of the breaker are closer to a real-world scenario while secondary tests the timing and functioning of the trip unit.

Primary injection testing is usually the preferred test method as it tests the entire circuit including the current sensors, wiring and the current conduction path in the circuit breaker as part of the test. However, it is also more expensive, so is generally conducted at commissioning and on circuit breakers that are part of a critical process or engineered safety system. Other than trip testing other tests that can be conducted as part of your primary injection testing include:
– Power Transformers (Through Faults)
– Relay Testing
– Bus-work, Switchgear and HV Breakers
– Low voltage breakers
– Switchgear Testing
– Heat runs
– Stability tests
– Loose Connections
– Core Identification
If you need help incorporating primary and secondary injection testing as part of your preventative maintenance programme get in touch with the EAS team today on 07 834 0505 or [email protected].


Riddle – October 2023 Newsletter



Answer:  Trouble