How Mid-South Metallurgical cut Energy Use by 22%

Mid-South in Murfreesboro, Tennessee operates a high-energy plant providing precision heat treatments for high-speed tools – and also metal annealing and straightening services. This was a great business to be in before the energy crisis struck. That was about the same time the 2009 recession arrived. In no time at all the market was down 30%.

Investors had a pile of capital sunk into Mid-South?s three facilities spread across 21,000 square feet (2,000 square meters) of enclosed space. Within them, a number of twenty-five horsepower compressors plus a variety of electric, vacuum and atmospheric furnaces pumped out heat 27/7, 52 weeks a year. After the company called in the U.S. Department of Energy for assistance, several possibilities presented.

Insulate the Barium Chloride Salt Baths

The barium chloride salt baths used in the heat treatment process and operating at 1600?F (870?C) were a natural choice, since they could not be cooled below 1200?F (650?C) when out of use without hardening the barium chloride and clogging up the system. The amount of energy taken to prevent this came down considerably after they covered and insulated them. The recurring annual electricity saving was $53,000.

Manage Electrical Demand & Power

The utility delivers 480 volts of power to the three plants that between them consume between 825- and 875-kilowatt hours depending on the season. Prior to the energy crisis Mid-South Metallurgical regarded this level of consumption as a given. Following on the Department of Energy survey the company replaced the laminar flow burner tips with cyclonic burner ones, and implemented a number of other modifications to enhance thermal efficiency further. The overall natural gas reduction was 20%.

Implement Large Scale Site Lighting Upgrade

The 24/7 nature of the business makes lighting costs a significant factor. Prior to the energy upgrade this came from 44 older-type 400-watt metal halide fixtures. By replacing these with 88 x 8-foot (2.5 meter) fluorescent fittings Mid-South lowered maintenance and operating costs by 52%

The Mid-South Metallurgical Trophy Cabinet

These three improvements cut energy use by 22%, reduced peak electrical demand by 21% and brought total energy costs down 18%. Mid-South continues to monitor energy consumption at each strategic point, as it continues to seek out even greater energy efficiency in conjunction with its people.

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The Matrix Management Structure

Organizations exploit matrix management in various ways. A company, for instance, that operates globally uses it at larger scale by giving consistent products to various countries internationally. A business entity, having many products, does not assign its people to each product full-time but assign those to different ones on a part time basis, instead. And when it comes to delivering high quality and low cost products, companies overcome industry pressures with the help of many overseeing managers. In a rapidly changing environment, organizations respond quickly by sharing information through a matrix model.

Understanding the Matrix Management Structure

A basic understanding of matrix management starts with the three key roles and responsibilities that applies in the structure.

  • Matrix Leader ? The common person above all the matrix bosses is the matrix leader. He ensures that the balance of power is maintained in the entire organization by delegating decisions and promoting collaboration among the people.
  • Matrix Managers ? The managers cooperate with each other by defining the respective activities that they are responsible for.
  • Matrix Employees – The employees have lesser direct authority but has more responsibilities. They resolve differing demands from more than one matrix managers while they work things out upwards. Their loyalty must be dual and their relationships with managers must be maintained.

Characteristics of a Matrix Structure

Here are some features that define the matrix management structure:

  • Hybrid Structure ?The matrix structure is a mix of functional and project organization. Since it is a combination of these two, matrix management is hybrid in nature.
  • Functional Manager ? When it comes to the technical phases of the project, the functional manager assumes responsibility. The manager decides on how to get the project done, delegates the tasks to the subordinates and oversees the operational parts of the organization.
  • Project Manager ? The project manager has full authority in the administrative phases, including the physical and financial resources needed to complete the project. The responsibilities of a project manager comprise deciding on what to do, scheduling the work, coordinating the activities to diverse functions and evaluating over-all project performance.
  • Specialization ?As the functional managers concentrate on the technical factors, the project managers focus on administrative ones. Thus, in matrix management, there is specialization.
  • Challenge in Unity of Command ? Companies that employs matrix management usually experience a problem when it comes to the unity of command. This is largely due to the conflicting orders from the functional and project managers.

Types of Matrix Structure

The matrix management structure can be classified according to the level of power of the project manager. Here are three distinct types of matrix structures that are widely used by organizations.

  • Weak Matrix ? The project manager has limited authority and power as the functional manager controls the budget of the project. His role is only part-time and more like a coordinator.
  • Strong Matrix ? Here, the project manager has almost all the authority and power. He controls the budget, holds the full time administrative project management and has a full time role.
  • Balanced Matrix ? In this structure type, both the project and functional managers control the budget of the project. The authority and power is shared by the two as well. Although the project manager has a full time role, he only has a part time authority for the administrative staff to report under his leadership.

Successful companies of today venture more on enhancing the abilities, skills, behavior and performances of their managers than the pursuit of finding the best physical structure. Indeed, learning the fundamentals of the matrix structure is essential to maximize its efficiency. A senior executive pointed out that one of the challenges in matrix management is not more of building a structure but in creating the matrix to the mind of the managers. This comes to say that matrix management is not just about the structure, it is a frame in the mind.

A Business Case for Sharing

We blogged about sharing services in a decentralised business context recently, and explained why we think why these should be IT-Based for speedy delivery. This is not to say that all shared services projects worldwide have been resounding successes. This is often down to the lack of a solid business case up front. We decided to lay out the logic behind this process.

Management Overview ? The overview includes a clear definition of why the current situation is unacceptable, the anticipated benefits of sharing, and an implementation plan were it to go ahead. The project should not proceed until the stakeholders have considered and agreed on this.

Alternatives Considered ? The next stage is to get closer to the other options in order to determine whether an alternative might perhaps be preferable. Substitutes for shared services are often doing nothing, improving the current method, and outsourcing the service to a third party.

The Bottom Line in Business ? Sharing services comes at an initial cost of infrastructure changes, and the impact on human capital (the latter deserves its own blog). The following need careful consideration from the financial angle:

Numbers to Work Through

  • Manpower to design and roll the project out in parallel with the existing organisation.
  • Capital for creating facilities at the central point including civil works, furniture and equipment and IT infrastructure.
  • The costs of travel, feeding and accommodation. These can be significant depending on the time that implementation takes.
  • The opportunity loss of diverting key staff – and the cost of temporary replacements – if appointing line staff to the project team.
  • Crystal-clear project metrics including (a) the direct, realisable savings (b) the medium and long-term effects on profit and (c) where to deploy the savings

Risk Management

Shared services projects don’t go equally smoothly, although planning should reduce the risk to manageable levels. Nonetheless it is important to imagine potential snags, decide how to mitigate them and what the cost might be.

We believe in implementing shared services on a pilot basis in the business unit that eventually provides them. We recommend building these out to other branches only when new processes are working smoothly.

Moving On From a Decision

We recommend you revisit your management overview, the logic behind it, the assumptions you made, and the costs and benefits you envisage before deciding to go ahead

The final step in proving a business case is doable should be fleshing out your roadmap into a detailed operations plan with dependencies on a spreadsheet.

Eck Industries Sheds Fresh Light

William Eck began his business in 1948 in a 650m2 garage building. The aluminium foundry prospered, and now has an 18,500m2 factory in Manitowoc, Wisconsin employing 250 people casting a variety of casings. Like high-tech industries around the globe it needs effective illumination. After it measured its carbon footprint, it realised it needed energy efficient lighting too.

When Eck Industries began its review it had around 360 high-pressure sodium lights throughout the plant. Their operating cost was substantial. After taking independent advice from an independent agency they realised they needed to replace these with more energy-efficient fluorescent lights that consume half as much energy.

The feasibility team conducted performance tests to determine the optimum solution. After selecting enclosed, gasketed and waterproof T8 fluorescents (available in G13 bipin, single pin and recessed double contacts) they collaborated with the supplier to calculate the best combination of 4 and 6 bulb fixtures.

The fittings they chose cost $60,000 plus $10,000 installation. However a $33,000 energy rebate wrote down 47% of this immediately. They achieved further energy savings by attaching motion sensors to lights over low-traffic walkways.

The retrofit was a huge success, with an 8 month payback via a direct operating saving of $55,000 a year. Over and above enhanced illumination Eck Industries slashed 674,000 kilowatt hours off its annual lighting bill. During the 20 year design life, this equates to a total 13.5 million kilowatt hours. Other quantifiable benefits include 443 tons less carbon, 2 tons less sulphur dioxide, and 1 ton less nitrogen oxide per year.

Many companies face similar opportunities but fail to capitalise on them for a number of reasons. These may include not being aware of what is available, lacking technical insight, being short of working capital and simply being too busy to focus on them.

Eck Industries got several things right. Firstly, they consulted an independent specialist; secondly they trusted their supplier to provide honest advice, and thirdly they accepted that any significant saving is worth chasing down. Other spin-offs were safer, more attractive working conditions and an opportunity to take their foot off the carbon pedal. This is an excellent example of what is possible when you try.

If you have measured your illumination cost and are concerned about it (but are unsure what the metric means within the bigger picture) then Ecovaro offers online reports comparing it with your industry average, and highlights the cost-benefits of alternative lighting. 

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