Participants: Kevin, Jeff, Brent, Emmanuelle, Jerome, Michael, Lisa
Date: 08.18.09
Summary of Discussion:
1. Water Catchment
After careful review, we will have two separate systems: One on the east side of the house and one in front of the greenhouse. The east collection tank will be installed once the greenhouse tank is installed and we determine our water needs. This will be phased and given time to be refined.
Presently we need to know water usage inside and outside. Neil is tracking water use for the summer and the fall, before and after irrigation. We should have a good sense of water usage by winter.
Over the next few months we need to figure out current irrigation zone with TJ and determine our approach with the new landscape.
Lisa will also monitor water use at Elkstone Farm greenhouse , to decide on needs and interior system pumps, as they are having challenges with the gravity fed system.
Cameron and Lisa will work on sizing the lower tanks to be ready for digging in the springs, and will coordinate with solar thermal.
Jeff will need information for final drawing to provide pricing as early as possible. Lisa and cameron will estimate tank size and a range estimate for the systems.
2. Energy
1)Updated energy calculations are completed. The only other outstanding issues are any electrical requirements for catchment?
-have allotted a limited number of contingency yearly (800) kWH
2)Current PV array size 15.7 kW dual axis including LED and lighting updates, allowing 1/2kw panels for contingencies. steamboat has an average of 240 days of sunny days, geothermal still has to be sized for peak load with 15 wells.
The cost of installation for 15 holes is too high. Kevin would like no more than 10 holes. We May need 200-400 gallon storing tank for solar thermal in addition to 200-400 gallon storing tank for geothermal.Kevin and Amy are very much willing to adjust their use of appliances and hot water to minimize peak load. Already they do not use multiple showers at the same time. Brent thinks that 10 wells might be reasonable (the TC test could also allow for lesser holes). Solar thermal 7 feet hight by 25 feet to fit on southern roof side.
3)Geo Loopfield Maximum is at 15 vertical wells (includes the peak for hot water, and limited Greenhouse heating).
Vertical holes will fit, need to coordinate with landscaping
-as low as 10 without peak hot water needs
-48 evacuated cylinders will generate enough yearly hot water BTU’s, but some days are cloudy, especially in winter
-242/365 average sunny days/year = 1/3 time will rely on boiler/geo therefore 15 wells are recommended
-TC test may yield better numbers – shall we schedule for this fall?
4)Any other electrical needs? Final call before I forward numbers to Susan.
5)Coordinate all services & piping with all other specialties
-schedule?
Brent would like to produce final set of schematic drawings for more accurate estimates, so that solid numbers are there to jump off of.
3. Climate Battery Design
Michael reviewed drawings, there is also a radon detector... Jerome suggests that air is moving so much that is not a problem. But it it is not much cost to include a radon detector. Jeff recommends putting in the radon detector
Control panels will be specified through Wadsworth, controls as they will be to combine all and control with a small computer. Jeff likes the cleanness and simplicity and is much more straight forward.
Shade panels are necessarry for extreme temperatures, shade during hot days and insulate during cold days.
Planting walls could be built with metal, concrete and/or mesh and stucco/plaster, which could be covered with tile. Longevity, toxicity and maintenance will need to be considered.
3 drawings
4 intake raisers
3 exhaust risers
Action items:
1. Brent will provide drawing for 100% in about 2 weeks.
2. Lisa and Cameron will submit a draft schematic designs for watercatchment for the s
3. Emmanuelle will schedule a visit Elkstone Farm to view shades, walls and planting
4. Lisa will provide material's collage for planting bed wall by Sept 1st
