The world of prefab — off-site fabricated homes shipped as panels, modules, kits — is doing well these days.  Some companies are shipping more homes every month.  Indeed, prefabrication offers several potential benefits that the housing industry cannot ignore: accelerated construction, controlled construction, construction without the elements, and minimal waste.  It all depends on the designer and manufacturer, but these homes can be ultra green, too.  Take these 20 green prefabs that we mentioned this year:

The E.D.G.E. of a Modern Green Home

E.D.G.E. — Experimental Dwelling for a Greener Environment — has 480 square feet and rainwater harvesting, geothermal HVAC, heat recovery ventilation, passive solar design, and insulated shutter doors.  Read more.

Modern Green Prefab by Ma Modular

Austin-based Ma Modular finished their first prefab, the Luna House, with 1,500 square feet, green materials, rainwater harvesting, and solar panels.  Read more.

Next Gen Prefab Called v100 Mod Box

This is two v100 Mod Boxes, each is 10′ x 10′ x 10′, made with green materials, state of the art appliances, and stylish fixtures.  Read more.

Prefab Sustainable Cabin in West Texas

Sustainable Cabin was fabricated in a warehouse and is now stationed west of Wichita Falls, where it is being used as a laboratory for students to study sustainable design principles.  Read more.

Joshua Tree Gets a New Desert Prefab

OMD’s ShowHouse of 720 square feet found a new home in the desert with rooftop solar, metal cladding, radiant heat, and high-end finishes.  Read more.

m2 Green Prefab from Method Homes

Method Homes installed this modern modular home, referred to as m2, on a picturesque mountain site in Glacier, Washington with a ductless mini split system, a wood stove, foam and cellulose insulation, and metal siding and roof.  Read more.

Picturesque Oceanside weeHouse in Oregon

This oceanfront prefab with a rustic patina has an incredible view of the Oregon Coast and 1,400 square feet of modern living for rent.  Read more.

Modern Green Compact House for All

This 220 square-foot beauty is made with beetle-killed, cross-laminated timber, triple-glazed windows, LED lighting, heat recovery, and a plush green roof.  Read more.

Modern LVL Rocio Romero Prefab in Canada

Developers at Kootenay Lake Village completed this home near Nelson, British Columbia with double insulated walls, high grade energy efficient windows, low-flow bathroom fixtures, and a green roof.  Read more.

A Small Osprey Eco-Cottage Has Landed!

Nationwide Homes launched The Osprey, one of five Eco-Cottages, at IBS with 523 square feet and a price tag between $50,000-$100,000.  Read more.

Modern Eco-Smart Challenger in Alberta

Conquest Manufacturing recently installed this three-module retreat on a serene hillside site in Crowsnest Pass, Alberta with R30 floor insulation, R30 wall insulation, R50 roof insulation, and an experimental cattle trough bathtub.  Read more.

Healthy Modern B-Line in Minneapolis

This factory-built prefab by Hive Modular — a B-Line Medium 003 — features abundant natural lighting and an openness that the owners enjoy.  Read more.

Versatile Origin Prefabs Set in Massachusetts

Three Origin series prefabs were installed in Wayland, Massachusetts with radiant floor heating, cedar sunshades, a roof deck, galvalume siding, heat recovery ventilation, and bamboo flooring.  Read more.

Reclaimed Space Prefab Sent to Marfa

Austin-based Reclaimed Space delivered this prefab built with reclaimed materials to Marfa, Texas.  It has recycled-content blown insulation, passive solar design, and natural ventilation to keep energy use low.  Read more.

Ideabox Unveils Fortino Prefab in Oregon

Ideabox unveiled its newest prefab model, the Fortino, at the Portland Home & Garden Show.  It’s 1,250 square feet with energy- and water-saving products and a price of $148,000.  Read more.

Blu Completes Another Next Gen Prefab

Flush with investment money, Blu Homes finished this Element model prefab in Rhode Island and the owner says it’s “exceptional.“  Read more.

Prefab Green Home Office in East Bay

This modern home office was prefabricated by students at the Academy of Art University in San Francisco with recycled denim insulation, reclaimed redwood siding, aluminum frame window units, and copper roof panels.  Read more.

Pop Up House Prototype in Petaluma

This is a prototype of the Pop Up House built with SIPs and a metal house port in under three months for $250,000.  House Port wants to flat pack these homes to buyers across the nation.  Read more.

Studio Created with One Prefab Module

PieceHomes sent a factory-built module to Venice where it was lifted above a site-built garage.  The light-filled space is now a studio for the owner.  Read more.

Newport Beach LivingHome Earns Platinum

This solar-powered, LEED Platinum LivingHome designed by KieranTimberlake has blown-in insulation, high performance windows, low-flow fixtures, dual-flush toilets, and bio-composite wood siding.  Read more.

If you have a great green prefab in the works, make sure to submit your green home to the editors for publication in 2011.