文档介绍：E NERGYW ORKS
So lar Wate r He ating Sys te m De s ig ns
7fo r do m e s tic ho t wate r, radiant flo o r he ating , ho t tubs , and po o ls — in any c lim ate
An interview with Rob Harlan of Mendocino Solar Services
By Michael Hackleman water, ., showers, dishwashing, What’s your experience of the design
cooking, and clotheswashing. They and hardware from 30 years ago?
(Rob Harlan is a general and solar contractor were also popular for heating the Rob: Some designs were indeed
with 25 years of experience with solar water
heating systems in Mendocino County, water in pools and hot tubs. This flawed—poorly implemented, overly
California. Rob primarily designs and installs movement slowed to a snail’s plex, or incorporating untested
photovoltaic systems today.) when the tax credits ran out. ideas. Still, even good designs require
Mh: As I recall, a lot of manufac- some maintenance. The lack of
Mh: Rob, will you give a brief his- turers also disappeared when the tax knowledgeable service personnel and
tory of the last 30 years of solar- credits went away. Of course, some parts crippled some systems. The
water heating system design and of these systems were poorly solar collectors from these systems
implementation? designed, used ponents, or are actually pretty rugged and often
Rob: Solar-water heating systems lacked adequate protection against fi