Abrash residence-Seattle area
Renovation of a home reducing energy use utilizing Solar electric (PV) and solar hot water collector system with Takagi instantaneous hot water heater. This system was installed early in 2006 by local contractors using technologies provided by Planetary Systems, Inc. and has resulted in a dramatic reduction of both onsite fossil fuel and electric usage.
The solar PV system consists of a 2600 watt solar array which is roof mounted connected to our model PP-3524GT/7K-25AGM Power Package (located in the garage) This system sells back about 16kwh daily accoprding to the owner. Power generation is greatly enhanced by the Outback FM-60 charge controllers which allow the array to be operated at higher voltage into a 24vdc battery system.
The Seido solar hot water collector has been able to supply 150 deg-F water to the Buderus S-200 storage tank daily in Seattle. These collectors have no water except in the manifold and transfer heat in a solid-state fashion by collecting and transfering heat from the vacuum tube to the collector manifold at 92% efficiency with no freezing or other issues. This system has reduced Nat. Gas consumption by almost 80% according to the owner.
The Buderus S-200 (53 gallon) hot water storage tank is then coupled directly to the Takagi instantaneous hot water heater to provide a level and continuous supply of hot water at night and when production from the collector is low. Don’t try this with just any instaltaneous hot water heater, the unit must be designed for this function.
The Power Package system shown located at the rear of the garage, is compact and simple. This system is our PP-3524GT/7K-25AGM model Power Package with 1200 amp-hours battery capacity and the complete Outback POwer Systems metering package with data logging and full controls. This system is strapped to the foundation for earthquake resistance.