Transcript Administrative Services Facilities Planning “The Green Report”

Administrative Services Facilities Planning
“The Green Report”
Presented by: Paul Bielen
PHOTOVOLTAICS:
 We have installed about 170kW of PV panels on the
roof of Lounibos with great success- and some large
rebates from PG&E. We are just completing a 255KW
PV system at the Public Safety Training Center in
Windsor which will produce 100% of their electrical
needs and will generate some surplus to sell back to
the utility. Our rebate on this system will be about
$740,000. We will be installing a 144KW PV system on
the roof of Plover as part of the current remodel, and
that should be operational in about 3-4 mos. The
rebate on that system will be about $420,000.
PHOTOVOLTAICS:
Lounibos Hall
 Installed with about 170kW of roof PV panels
 PG&E rebates of totaling $250,000
PHOTOVOLTAICS:
Public Safety Training Center
 Installed 255kW PV system in parking lot
 PG&E rebate totaling $740,000
PHOTOVOLTAICS:
 We installed a 44KW PV system on the roof of
the new Doyle Library and it is online now, with
a readout of its production available to the
public from an info kiosk in the 1st floor entry
foyer. That rebate was about $136,000. We
took a request to the Board Facilities
Committee to begin the research on a large PV
array for the roof of Haehl Pavillion, and I hope
that we can do that project in the coming year
or so. I would also like to look at the roof of
Emeritus for a future PV array.
PHOTOVOLTAICS:
 SRJC investigated the
feasibility of placing a PV
array on the new parking
structure but with the
height limitations, the
College was trying to
keep its building profile
as unobtrusive as
possible. The College
continues to explore this
and other Santa Rosa
Campus sites for future
photovoltaic projects.
COGENERATION:
 In 1989 we installed a 240 KW cogeneration system at
Quinn, and about 3 years ago we replaced it with a
more updated 280 KW system. It not only supplies the
hot water for heating the pools, space heating for
Quinn, Tauzer, Maggini, Barnett, and Bailey, but it also
supplies chilled water for air conditioning in Maggini
and Bailey. As a by-product of the hot water production
it has turbines in the engines which generate electricity
for our grid. In addition to saving about $90,000 per
year in electrical costs, we are going to receive a
$168,000 rebate from PG&E for it.
COGENERATION:
LOAD SHEDDING:

In the new Doyle Library our air
conditioning system consists of a
large ice maker which runs at night,
making ice with low cost night time
power. In the day we circulate water
through the ice and back into the
building to provide cooling at a fraction
of the cost of a conventional A/C
system. We are looking at ice making
A/C systems now for several of our
existing buildings. This type of load
shedding is a major focus of PG&E
right now since it reduces their need
to build new plants. There are
substantial rebates available now as
well.
UNDER FLOOR DISTRIBUTION:
 In the remodeled Plover, the new Mahoney Library in Petaluma,
and the large classroom/office building (Call Hall) in Petaluma we
will be moving the conditioned air under a raised floor system
which will allow us to cool the buildings using 65 degree air
instead of the 55 degree air more typically needed in conventional
A/C systems. This will save a great deal of energy and money by
not having to cool the air an additional 10 degrees. It works well
because the 65 degree air passes up from a register near your
work station and is 33 degrees cooler than your body temperature,
and so it feels very cool. Conventional A/C systems are trying to
push 55 degree air down from the ceiling, through the layer of
warm air that is always at the top of the room, and this is
inefficient. This is a European technology that is gaining
widespread acceptance in the US, and we will have the first such
systems in Sonoma County.
RACE HEALTH SCIENCES BUILDING, IDEC:
 In Race we installed an A/C system that has won numerous
regional and national engineering awards and is regularly used as
a demonstration system by PG&E. It consists of a large attic
mounted fan system which blows outside air over large grills, like
your car radiator, that have street temperature water running down
them. This blowing air causes evaporation, releasing heat out of
the building, and provides cool air to the building. The mechanical
chiller rarely has to go on except when outside temperatures
exceed 90-95 degrees. The system is called an Indirect/Direct
Evaporative Cooling system (IDEC), and is what we will use to
cool Plover and several of the new buildings in Petaluma. PG&E
figures it saves 40-50% of the energy of a conventional system.
BERTOLINI STUDENT CENTER:
 In the new student center we will be installing a Ground Source
Heat Pump system using water from geothermal wells. We will drill
several hundred 6” diameter wells, each about 300’ deep, in the
Burbank Circle Dr. They will supply a constant 55 degree ground
water as a preconditioned water source for air conditioning. The
water will pass over heat exchangers to cool air, which will then be
distributed through the building. Since we are typically seeking 55
degree air for A/C use, this supplies us with it for free, and if it
needs additional cooling we use small heat pumps to drop the
temperatures a few more degrees. This is much more efficient
than trying to chill 80 or 90 degree outside air down to 55 degrees.
For heating we just reverse the system- it supplies 55 degree
water to the heat exchangers instead of 30 or 40 degree outside
air and so heating this 55 degree air up to room temps is much
more efficient.
GREEN BUILDING:

All of our newer buildings incorporate green building technologies and materials,
and as that market expands and more products are available, we will insist that
they be used. The architects and engineers we use are well versed in this and
know what our requirements are, from 100% recycled content in new carpets and
upholstery, to counter laminates and wall coverings made from recycled wood
byproducts, to vinyl flooring made from all natural linoleum components such as
linseed oil, jute, and cork. Our interior finishes no longer contain any products with
volatile oils that off gas allergens. Even the glues used to secure flooring,
laminates, and wall coverings are water based, as are all of our floor finishing
products. Our pitched roofs are concrete tile with no petroleum content and our
exterior finishes are brick, plaster, and concrete. We just completed installation of
interior lighting motion sensors in 9 classroom buildings which will save
considerable electrical energy, and we are now completing a 2 year project to
replace every boiler in the district that is over 20 years old with new, highly efficient
modular boilers. We are in the process of replacing our 24 year old computerized
energy management system (EMS) which controls the HVAC systems in all
buildings with a new and much more efficient and effective system. As other new
green products and technologies become feasible we will incorporate them.
ALTERNATIVE VEHICLES:
 In recent years we have been replacing our older fleet vehicles
with electric and hybrid vehicles wherever practical. You may have
noticed the large number of electric carts on campus being used
by maintenance folks, the warehouse, Computing Services, and
Graphics. We hope to continue buying them and have only been
constrained by their fairly limited availability and light duty nature.
There are only a few vendors for them that have been able to stay
in business for any length of time (long term availability of parts
and warranty protection is the issue here) and we have found that
they are often not heavy duty enough to handle some of the loads
and tasks that are needed. We continue to look at new vendors,
however, and to test new products in this area. We have had great
success with our first hybrid vehicle and hope to purchase more
hybrids soon.
RECYCLING:
 SRJC has recycling program goals of 25% the
first year, 50% after 3 years, and our
achievement a couple of years ago of about
67% reduction in our waste stream. This year’s
report to the state demonstrated about a 75%
reduction in our waste stream, with deversions
of construction waste, green waste,
paper/plastic/metal, and other materials at all
time highs. Our recycling program leads the
state community college system and is
considered a model program.
BICYCLES:
 We have just completed the installation new
bike racks all over campus and now have over
600 racks in place. We also applied for, and
received, a grant to buy secure bike storage
units with electronic locks. Once those are in
place and we can evaluate their usage and
effectiveness we may purchase more. Some
will be installed in the new parking structure
and we plan to install conventional bike racks
in the new garage as well.