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Theater Projection
Calculating and Conveying the True Cost of Ownership of Projection Displays
Powerful, efficient, responsible projectors through Digital Projection's CoolTek engineering
Download the True Cost of Ownership Calculator: http://www.digitalprojection.com/news/zips/DPI_CostofOwnership_Calculator.zip.
As the world's economies work their way toward recovery, the challenges of the past year have left us with valuable lessons. Now more than ever, it is vital that the True Cost of Ownership of any capital expenditure, be clearly defined and understood. Savvy end-users and purchasing agents are becoming increasingly aware that purchase decisions need to be based not just on the initial purchase price of the product, but also on the long-term cost of ownership, as the combination of the two actually defines the actual cost of owning and operating any product. This article will describe how you can calculate true cost of ownership information, in order to recognize all of the costs associated with projector ownership, as well as the compelling value offered by Digital Projection's efficient displays.
Efficient design has been a cornerstone of DP's development philosophy for more than a decade. As a result, Digital Projection's projectors possess technologies that promote efficiency and extend useful life, while limiting cost of ownership, energy consumption, heat generation and operating noise without sacrificing performance.
The formula for calculating full cost of ownership is straightforward, but first, let's define some terms:
- PPP = Projector Purchase Price - that being, the initial price the customer paid for each projection system.
- OHrY = Operational Hours per Year - that being, the number of hours the customer expects to operate each projector on an annual basis.
- AYS = Anticipated Years of Service - that being, the number of years the customer expects to operate each projection system.
- LLHr = Lamp Life in Hours - being the number of hours the manufacturer specifies each lamp to operate before reaching 50% of its original brightness.
- LRC = Lamp Replacement Cost - that being, the customer's cost for each replacement lamp.
- LPU = Lamps Per Unit - being the number of lamps installed in each projector. This is typically one, two or four lamps, depending on the manufacturer and the model.
- AMI = Additional Maintenance Items - that being, the annual cost of any additional maintenance items that need to be replaced from time to time, such as filters, fans or color wheels.
- PQ = Projector Quantity - being the total number of projectors in the customer's application.
- PwrC = Power Consumption - being the projector power consumption in Kilowatts.
- ACPwr = Average Cost of Power - being the average cost of a Kilowatt Hour.
Now that our terms are defined, here is our formula to calculate the true cost of ownership for any number of projectors:
True Cost of Ownership =
((PPP + (((((OHrY x AYS) / LLHr) - 1) x (LRC x LPU)) + (AMI x AYS))) + (OHrY x AYS x PwrC x ACPwr)) x PQ
You can download the calculator as an Excel spreadsheet by visiting http://www.digitalprojection.com/news/zips/DPI_CostofOwnership_Calculator.zip.
Included in the .zip file are Excel versions of the calculator for both Office 2003 and Office 2007.
You can also copy and paste this formula, formatted for Excel, into a spreadsheet:
+((PPP+(((((OHrY*AYS)/LLHr)-1)*(LRC*LPU))+(AMI*AYS)))+(OHrY*AYS*PwrC*CPwr))*PQ
You may note that within the formula, one set of lamps is deducted from the total lamps consumed by each projector during its operational life. This accounts for the fact that the purchase price of each new projector already includes one set of lamps, which are already installed in the unit. Those are the first lamps used.
Here is an example of how to put the formula to work in a real world application:
We will assume a high-use application - 24 hour-per-day, 7 days-per-week, that employs (4) TITAN 1080p-700 displays, which are dual lamp projectors. Being 3-chip displays, beyond lamps and filters, no additional maintenance items are required.
First, let's organize our data:
PPP = Projector Purchase cost = $67,000 (list price of a TITAN 1080p 500 and a typical lens)
OHrY = Operational Hours per Year = 8760 (24 hours per day x 365 days per year)
AYS = Anticipated Years of Service = 7
LLHr = Lamp Life in Hours = 2000
LRC = Lamp Replacement Cost =$995
LPU = Lamps Per Unit = 2
AMI = Additional Maintenance items = $0
PQ = Projector Quantity = 4
PwrC = Power Consumption= .950 Kw -= per the published specifications for the TITAN 1080p 700.
ACPwr = Average Cost of a Kilowatt Hour of Power = $.10175. This figure is per http://www.eia.doe.gov/cneaf/electricity/epm/table5_6_b.html, which identifies that in 2007, the average cost of residential and commercial electricity in the US was $0.10175 per KwHr.
Now, let's plug the data into our formula:
Total Cost of Ownership =
((PPP + (((((OHrY x AYS) / LLHr) - 1) x (LRC x LPU)) + (AMI x AYS))) + (OHrY x AYS x PwrC x ACPwr)) x PQ
(($67,000 +(((((8760 x 7) / 2000) - 1) x ($995 x 2)) + ($0 x 7))) + (8760 x 7 x .950 x $.10175)) x 4
(($67,000 + ((((61320 / 2000) - 1) x $1,990) + $0)) + $5,927) x 4
(($67,000 + (((30.66 - 1) x $1,990) + $0)) + $5,927) x 4
(($67,000 + (29.66 x $1,990)) + $5,927) x 4
($67,000 + $59,023+ $5,927) x 4
$131,950 x 4
Total Cost of ownership = $527,800 for all four units, for 7 years of 24 / 7 operation.
Total Cost of Ownership = $131,950 per unit, for 7 years of 24 / 7 operation.
The resulting true cost of ownership values include all costs - Initial purchase price, lamp replacements, scheduled maintenance, miscellaneous consumables and cost of power.
It is important to mention, power consumption, lamp life and cost of replacement lamps have a huge impact on the true cost of ownership calculation. In our example, we can see that each of the efficient TITAN 700's, which require only 950 watts to operate at full brightness, consume a total of $5927 of power during the seven year, 24 / 7 operational life.
For comparison sake, an unwary customer of our average competitor's projector that consumes 2638 watts would spend over $ 16,459, per projector, on electricity for same usage over the same time period! Across the 4 projectors in our example, that would increase the total cost of operation (and power) by more than $42,000! Beyond costing far more to operate, projectors that consume more power also place a greater power burden on facility HVAC, and they leave a much larger carbon footprint in their wake.
The same analysis can be made for lamp life and cost of replacement lamps. As a simple modification to our example, if a projector was selected with the same lamp cost as the TITAN, but with a lamp life of only 1500 hours, the total cost of operation (and lamps) would increase by nearly $20,000 per unit - $80,000 across all 4 units! In short, selecting projectors that utilize lamps with shorter operational life, or higher lamp replacement costs (or both), can have an astoundingly costly impact on the true cost of ownership.
We all know that times have changed. Corporate and home cinema customers alike are under tremendous pressure to make responsible purchase decisions that achieve their objectives in the most efficient way possible. Our job is to provide our clients with the information they need to make the right decision.
The next time you have the opportunity to specify or purchase a projector for a specific application or theater, take the time to calculate the overall cost of ownership between, for instance, your or your customer's old projector and the proposed DP projector, or the proposed DP projector and any competitive model the customer may be considering as a reasonable alternative. More than likely your analysis will demonstrate that the Digital Projection precision display delivers a more efficient solution over the long term - one that saves you or your customer money, helps preserve our natural resources and delivers the best projection experience available today.
About the Author
A digital imaging pioneer and projector industry leader, Digital Projection International (DPI) manufactures and distributes an extensive and expanding line of ultra high-performance 3-chip and single-chip DLP® projection systems. These projectors are the reference standard for demanding applications such as large-venue, live-event staging, Fortune 5000, homeland security, education, medical and scientific research, command and control, digital cinema, commercial entertainment, worship and elite home theater.
Multiple company accolades include two Emmy® Awards for Outstanding Achievement in Engineering Development by the Academy of Television Arts and Sciences. DPI remains the first and only projector manufacturer to win the coveted award.