From Autosub Wiki

Power and Water pod is one of the critical infrastructure pods that makes Automatic Subconscious camp as pleasant and comfortable as home. The pod provides and manages the following services to the camp:

Contents 1 Power and Water pod 1.1 Electricity 1.2 Camp Lighting 1.3 Running Water 1.4 Gray Water 1.5 Kitchen Propane

Power and Water pod

Leader: Pretzel

Co-Leader:  Xuth

Pod Members: David L, Steve K

Electricity

In previous years (2003-2005), electricity was supplied to the camp in an on-demand fashion using one or two gasoline powered Coleman generators (5000-watt and 3000-watt models.) [Ed. note: as of May-2008, the 5000-watt generator has seized and is inoperable.] These generators were typically only run at night when electricity demand was high (lights and sound system.) During the daytime, limited power was provided by a small cluster of deep-cycle lead-acid batteries and inverters. Both generators were pretty reliable, but required frequent refilling and maintenance. Since they were so noisy, they needed to be parked across the street on the other side of the Esplanade and placed inside a box to baffle the noise. In 2006, the camp was positioned next to Entheon Village and were offered 24x7 power as a neighborly courtesy. We utilized only one of our own generators to power a large LED art sculpture, affectionately known as "Spinny". 

In 2007, Automatic Subconscious along with a handful of other Boston-based camps formed the first Boston Village known as "The Hive". The village jointly agreed to rent a 40kWh diesel generator for the duration of Burning Man. This decision provided very reliable 24x7 power to the whole village at a reasonable cost (~$30/person). The diesel generator was also very quiet and required little-to-no maintenance.

The plan for 2008 is to rent a diesel generator again for the whole village. Despite having 24x7 power, the camp still maintains and ships multiple gasoline generators out to Burning Man. These generators are primarily used for back-up power (in case the main diesel generator fails.) The smaller, portable "inverter generators" (which are owned by camp individuals) are used before the arrival of the primary diesel generator.

See the Power and Water: Electricity page for more details on how to implement this.

Camp Lighting

Historically, lighting around the camp has always been rather minimal, frequently only lit by a propane lantern. In contrast, the public fascade of Automatic Subconscious has always been well lit on both the inside and the outside by LEDs, spotlights, and various other sources of lighting.

In 2006, we introduced two types of lighting to the general camping area.

1. White LED rope light
   
2. Compact Fluorescent Lamps (CFLs)
   

Both have their advantages and disadvantages (major points in boldface):

	Pros	Cons
White LED Ropelight ¹	Stored on spool; deploys quickly Long lengths of rel. uniform light Moderately low power consumption Pretty durable	Cold, blu-ish light Can be overly bright Whole rope On / Off (all-or-nothing deal)
Compact Fluorescent Lamps (CFLs) ²	Warm, pleasing light Individually controlled Strategically placeable Low power consumption	Slow to deploy Somewhat fragile

¹ The LED rope light is owned by Rob D.
² The CFLs are camp owned.

See the Power & Water: Lighting page for more details on how to implement this.

Running Water

Water is one of the most basic necessities at Burning Man. But "running" water is a luxury item and one that AutoSub has had for a few years now. In 2005, Cris W. lent his water pump set-up to us for use in providing a steady water supply to the camp. Unfortunately, it had some leaks in the system and had trouble keeping the pressure up and would quickly drain our lead-acid batteries requiring frequent recharges of said batteries.

In 2006, Pretzel came up with a similarly designed system based around an RV water pump, water filter, and lead-acid battery using modular plumbing components that go together easily by hand with minimal tools. This design is fast to deploy and quite reliable. It only had a couple minor flaws (which were later remedied in 2007.)

Autosub plans to further improve on the running water supply to the kitchen sink. As it was noticed last year, because the faucet operates just like a normal kitchen sink, most camp members need to be frequently reminded that Burning Man is NOT like living at home:

• The camp has a limited amount of water for the whole week.
• The camp must evaporate any gray water produced from the kitchen sink.
  

A faucet enables the wasting of water, so it has been proposed that some sort of auto-limiting device be installed so as to encourage frugal use of the water supply. This device will also be temporarily over-ridable as to allow the kitchen cooks to rapidly fill large pots as needed.

See the Power and Water: Running Water page for more details on how to implement this.

Gray Water

With the use of clean water to wash dishes and bodies comes the production of "gray water". Since there are no septic systems provided by Burning Man, each camp has to find a way to dispose of this mildly dirty, but clearly UN-drinkable water.

For as long as most of us can remember, there has always been an evaporation "pond" (aka. gray water pond) sitting in the middle of the camp, diligently evaporating this waste water into the air. A classic gray water pond consists of:

• A large, brown or black colored plastic tarp (10' x 20' in area; 5 to 15 mils in thickness)
• Enough wooden 2x4s (to line the perimeter of the tarp)
• A bunch of concrete blocks (to hold the 2x4s in place)

After the gray water has been filtered thru a simple screen, it is disposed of in this pond area to let evaporate under the hot, dry sun. This system is moderately effective at evaporating gray water, but it has its problems:

1. As dust settles onto the greasy pond water, evaporation can frequently be hindered.
2. The pond can also be a breeding ground for bacteria and other illness vectors.

In 2007, Doug R. and Pretzel engineered an add-on to the gray water pond. This new addition was based on a proven design by previous Burner experience which utilized a bilge pump, 4-foot section of ½" hardware cloth (welded wire mesh), and a sheet metal cone. ( Original evaporator fountain design ) This design radically boosted evaporation rates and only had a few minor problems. The issue of bacteria and other vectors were handled by adding regular doses of chlorine bleach to the gray water. There are plans to automatically dispense chlorine bleach at a regular interval for 2008.

See the Power & Water: Gray Water page for more details on how to implement this.

PS: No peeing in the gray water pond.
PPS: No, I don't care how badly you have to go.
PPPS: No, you can't use my pee bottle. Go get your own, hippie.

Kitchen Propane

The kitchen has two gas grills and two to three gas stoves, all of which are fired by liquid propane (LP). Since nearly all of our cooking is done with these grills and stoves, it is critical that Autosub have both a sufficient supply of LP for the week as well as tools and replacement parts to maintain these systems while on the playa.

Determine Kitchen needs
We have Propane tanks in Reno, need to be filled - 1 hour total, 2 people
Pretzel has an extra propane tank to donate to Autosub
check for leaks - run water across joints, search for bubbles
return to storage - 1 hour, 2 people.