General


What is Net Zero Energy?
How does Net Zero Energy work?
Does NZEN offer a referral program?
How much Solar Electric is required?

Economics


Is a Net Zero Energy Home Expensive?
How Exactly Does The Utility Billing Work?
How Much Does the Solar Electric System Cost?
What if I produce more energy than I use?

Architects


What does my Architect need to know about NZE Certified?

Mechanical Engineering


How much Mechanical system space will I need?
How does NZEN interface with Mechanical Engineers?

General Contractors


What does my general contractor need to know about NZE Certified?




What is Net Zero Energy?


See About Net Zero Energy.

How does Net Zero Energy work?


See About Net Zero Energy.

Does NZEN offer a referral program?


Yes. See the referral program page for details.

How much Solar Electric is required?


See About Net Zero Energy.

Is a Net Zero Energy home expensive?


See the Net Zero Energy Economics page.

How exactly does the utility billing work?


See the Net Zero Energy Economics page.

How much does the solar electric system cost?


See the Net Zero Energy Economics page.

What if I produce more energy than I use?


See the Net Zero Energy Economics page.

What does my Architect need to know about NZE Certified?


While your Architect may be enthusiastic about your new home being net zero energy they still want it to look great. Roof mounted solar systems look like an oversized skylight. Your Architect needs to understand the relationship between insulation levels, glass performance, HVAC specifications, lighting design, appliance selection and area needed for solar panels. The more efficient the house, the smaller the area required for solar energy production. Very early in the NZE Certified process your architect will know how many square feet of solar panels need to be planned for. Very likely your architect will have creative ideas of how to accommodate the solar panels without compromising the design. The panels can be roof, ground or trellis mounted, need to face south and not in the shade between 9:00 am and 3:00 pm on December 21. Here are some recent NZE Certified projects and how many square feet of solar electric was required.

Sq. Ft. of house

Sq. Ft. of solar required

1500 (new, standard eff.)350
2000 (remodel, standard eff.)420
2900 (new, standard eff.)540
4000 (part time res.)360
4500 (new and very eff)720
8200 (new, stand eff.)1600


Architects also need to plan for the inverter. The inverter needs to be located in a cool location and is usually about 18"wide x24" high with 15" side and 36" front clearances. The inverters do hum slightly so they should not be located near sleeping rooms.

How much Mechanical system space will I need?


Sufficient space to locate the heating, cooling and domestic hot water generator is important. Your architect will need a space with the house of a minimum 4'x4' footprint. These issues will be discussed during the design phase of you project.

How does NZEN interface with Mechanical Engineers?


We let the mechanical engineer do his job but we provide performance and specification suggestions to assure a Net Zero Energy solution and track and provide all the documentation necessary for certification.

What does my general contractor need to know about NZE Certified?


The builder needs to know everything about the process. NZE certified provides the general contractor with a project list, so that he can coordinate the solar installation and the other aspects of the NZE certified process with the other trades. The GC orders the appropriate HERS inspection at the appropriate time during the construction process. He then collects both the CF-4R forms and CF-6R forms and distributes them to NSHP and NZE certified.