Site Charter

The purpose of this site is to exchange technical information related to greenhouse design, construction and operation. Applications in the Pacific Northwest (PNW) environment will be of primary interest. Of particular interest will be the impact of the ocean coast environment on greenhouse operation.


Some Areas of Interest

Solar Greenhouse Design & Construction

Hydroponic Plant Culture (Emphasis on Vegetable Culture)

Greenhouse Control Systems Design, Construction and Test

Greenhouse Performance Measurement and Analysis


Site Assets

The author has constructed a Solar Greenhouse (SGH) on the Southern Oregon Coast. The SGH is presently in operation utilizing hydroponic growing techniques.

One goal of The SGH project is the automation of SGH operation. The SGH has a dedicated computer for measurement and control. Interior and exterior temperature and humidity are measured on a continuous basis, as well as the status of the heating and ventilation systems. Based on these measurements, the computer controls the heating and ventilation systems, using software and hardware developed specifically for this application.

SGH performance data are produced and archived continuously. The Author’s intends to post SGH performance data on this site.




Site Status

This site was created 1/18/06. The SGH has been in operation since April 2005 using simple thermostat controls. Closed-loop operation of the SGH under computer control was started 1/16/06.

No significant postings are planned (by the author) until Feb. 2006.