International Newspaper Group 2008 Gannett’s Green Campaign.

International Newspaper Group 2008

Gannett’s Green Campaign


Gannett has a long history of Green efforts

Individual and Local Efforts

Corporate Green Committee in 2006

Individual Gannett newspapers have formalized Green Teams, Green web sites, and Initiatives


Corporate Office Building is a Green-Focused Design Natural Lighting Green Roofs Energy Efficient

Lighting, Power Systems, and HVAC

Centrally Controlled Occupancy Settings

Designed With LEEDS Standards


Two parallel approaches Green Committees and Teams

◦ Efforts that are behavioral◦ No-cost changes to what we use or how we use

items

Newspaper Division◦ Focus on energy savings/reductions◦ Efforts that require capital


Capital Efforts Lighting

◦ Targeted high-ROI lighting changes first◦ High bay HID or Metal Halide lights

HVAC◦ Systems at end-of-life

Redesign for efficiency Correctly size for changed operations


Typical Production Facility Electrical Energy Usage


Lighting Project Chose a company to partner with for

focused effort at lighting energy savings◦ That company managed and performed site

audits◦ Negotiated Gannett-wide discounts for lighting◦ Each project was quoted as materials and

turnkey, with detailed analysis of current energy costs, estimated energy, cost, and Carbon effects


HID Lighting vs. new fluorescent high bay fixtures

$570.28

$269.81

$0.00

$100.00

$200.00

$300.00

$400.00

$500.00

$600.00

1

High Bay Fixture Comparison

400w Metal Halide

4' x 6 lamp Flor


2004 2007


Why focus on High Bay lighting?Limited capital available

High Bay lighting was largest ROIFast analysis

Simplest Installation***


Annual Contribution of Gannett Lighting Retrofit Project

$1,400,000+ Savings in electrical cost 52% Overall ROI 14,000 tons CO2 Reduction 30 tons NOX Reduction


Large Newspaper Production and Office Facility $290k Project

◦ Whole House – Office and Production



100% ROI



100% ROI

$97k Rebate check◦ ******


Next emphasis for lighting

Next tier of ROI relighting opportunities Controls


Need for accessible manual controls

Occupancy controlled lighting

Scheduled lighting


HVAC Energy Projects

Typically Higher Capital Costs More Engineering Intensive Complex installation Larger disruptive impact on the facility


Focused◦ End of life

Major repairs needed Completely inoperable Very old, and/or no longer suited for current operations

Production changed or removed from facility


Example: Very old, large steam

boilers Facility is office only,

no longer any production

Steam operates heat, reheat, and domestic hot water

Very cramped mechanical space

Asbestos


Two new, much smaller steam boilers with 24:1 turn-down

Separate domestic hot water system Energy savings: $180k/yr Nat Gas Project cost: $600k


HVAC Projects Scope

Chillers Hot water heaters Boilers

◦ Replacing steam with hot water◦ New, more energy efficient boilers


Steam VS Hot WaterUnit cost of heat energy: LP Steam vs Hot Water

132

100

0

20

40

60

80

100

120

140

LP Steam Hot Water


Why Steam??

Humidification◦ Steam to Hot Water Heating◦ Operating oversized steam boilers for humidity in

off-heating periods

Over Humidification


Example: convert to Hot Water


High Pressure Air

Compressed Air Energy CostCompressed air is one of the most expensive uses of energy in a manufacturing plant. About eight horsepower of electricity is used to generate one horsepower of compressed air.

MNTAP – University of Minnesota


80% of the energy used to make compressed air goes into heat.


Gannett has 15,000 hp of connected air compressors

At full load, that would represent over $13M of electrical cost

Actual costs in excess of $4M


If your compressors look like this


Or this


Simple facts that save $


Every 2psi of pressure reduction = 1.5% energy use reduction

In this example, the low pressure is set at 130psi.

The high pressure is set at 150psi

Modulating at 130psi would save 15% in energy usage


Where and how are you using compressed air? Areas where lower pressure air would work

just as well? Leaks? Open valves on idle equipment? “Inventive” uses?


20° F decrease in compressor inlet temperature = 3.5% energy savings


Resources

DOE, CAGI, others operate a program called “Compressed Air Challenge”.

Available in most of the country One day, very specific course in

compressed air knowledge, energy specifics, diagnostics and remedies


Gannett continues to pursue reduction in energy use

A recent task group identified and is in the process of reducing energy costs by an additional $4.4M in the next year.

Additional 40tons CO2 reduction.

International Newspaper Group 2008 Gannett’s Green Campaign.

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