Here are some manufacturer links that might be helpful in designing your project:

Insulation
Owens Corning
Johns Manville
FiberTech
Thermafiber

Window Products
Andersen
Kolbe
Jeld-Wen
Marvin
Milgard

HVAC products
Bryant
Carrier
Lennox
Mitsubishi
Trane

Water Heaters
A.O. Smith
Rheem
Takagi
Nortiz

Solar Water Heating Systems
How to select

Radiant Barriers
Innovative Insulation
RadiantGuard

Compact Fluorescent Fixtures
How to select
Sylvania
NVision
Westinghouse
Philips
MaxLite
GE

LED
Enviromental Lighting

Photovoltaic
Evergreen
Kyocera
Sharp
Sanyo

Green Building Products
Ed’s Best