Stage 1
The HBS will compost leftover food scraps, lawn clippings, plus human and pet waste. It produces biogas and bio-slurry fertilizer.

Stage 2
The bio-slurry fertilizer can be added to plants and/or the compost in Agrilab's CHRS. This addition could increase the overall efficiency of the Agrilab's technology. The CDD can handle items that are more difficult to compost, like paper, cardboard, branches, trees (in the form of wood chips) and thicker forms of compostable plastics.

Perhaps a modified version of the HBS can be integrated with the CDD to capture all of the biogas that it can produce...

Additional sources of clean-energy (wind, solar, hydrogen, etc.) create more stability and reliability, when combined with clean energy storage solutions. Designed so that any two of these sources, generating at peak efficiency, generates more than enough clean heat and clean electrical energy to power the family's home and the EON Greenhouse modules. Some varieties of algae produce abundant green liquid fuels. Hopefully they are the same types of algae that produce food, air and/or that purify water.

Finally, I am looking for the cleanest method possible of converting methane or compost to hydrogen.

Fossil fuel energy infrastructures produce a lot of pollution, Nuclear fission is a bit better, but still produces radioactive waste. Hydroelectricity is better, but hydroelectric dams require rivers to be diverted and large areas to be flooded, thus causing major ecological destruction. 

The SPACE House generates more than enough clean power for itself and the EON Greenhouse modules, so the surplus can be sent back into the municipal grid.

Recommended: Our towns and cities already have extensive electrical and water networks, so the following infrastructure additions would quickly pay for themselves:

Distributed Energy Production 

The Scalable Portable Automatable and Closable Ecosystem (SPACE) House integrates its own multi-sourced clean energy factory:
- Solar panels, artificial leaves, wind turbines, etc. are strategically positioned to provide maximum efficiency to power the entire house.
- Any additional energy they produce is used in the electrolysis of water to produce hydrogen, which is stored in safe fuel cells for use to power the home and the EON Greenhouse modules when solar and wind are unavailable. The fuel cell reintroduces the hydrogen to oxygen as it generates electricity, producing only water as a by-product. The additional energy can also be stored in Lithium Ion batteries, organic batteries, etc.
- clean-energy-extracting toilets and also clean-energy-extracting compost systems (for food refuse, leftovers and all of the plant waste from all of the plants inside and outside of the greenhouse) store that clean energy in hydrogen fuel cells, microbial fuel cells, organic batteries, Lithium Ion batteries, etc.
- The compost is used to grow the 100% organic food and as ink for 3d printers. 

Centralized Energy Production 

Clean energy can also be generated at central locations in our towns and cities. Hydrogen can be extracted, at sewage treatment plants, from the vast amounts of feces and urine that we collectively produce on daily basis. Electrolysis of additional water in the sewage can further assist in the treatment, since clean and pure water is emitted by hydrogen fuel cells. Vaporizing our garbage with lightning also produces hydrogen, in arc gasification plants. We can even use just sunlight and water, with no electricity involved, to generate hydrogen with new devices that mimic the photosynthesis of plants, called the artificial leaf.

These additions result in abundant, renewable and clean energy that is locally produced, so that there is no longer any need for expensive, environmentally destructive, long-distance power distribution systems, like pipelines and electrical power lines.

These buildings will meet smart grid requirements with zero-energy and even energy plus performance, where they produce more green energy than they consume.

Society saves by eliminating the need for large centralized energy infrastructures, pollution cleanup and climate change mitigation caused by environmentally unfriendly energy sources.

Clean Energy Economies are spreading fast, so here are links to help governments and businesses to keep up with this historic opportunity:

Heat Production from Compost - Compost Heat Recovery Systems CHRS
Most recommended:

Methane From Compost

Most Recommended:

Hydrogen From Methane
The Jean Pain Method of Composting produces methane, so we can extract hydrogen from that as well:

Hydrogen from Compost

Most Recommended:

Methane and Hydrogen from Algae

Algae as Energy Source

Hydrogen from Garbage

Hydrogen from Wastewater/Sewage

Ecological Wastewater Treatment Plants
Hydroponic sewage treatment systems could also be used to grow organic food, medicine, etc. before and/or after the removal of hydrogen:

Transparent Solar Panel Technology

Wind Energy

Multi-Directional Wind turbines - smaller versions of these would be excellent for the rooftop of the house and/or greenhouse:

Renewable Energy Storage

ACE House Energy - Compost plus Multiple Sources

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Jean Pain Method of Composting produces abundant daily heat, methane and humus. I have been unable to find a combined high tech version of this process to maximize efficiency, but I have found individual technologies that are very effective:  the Home Biogas System (HBS) for biofuel production and the AgriLabTech's Compost Heat Recovery System (CHRS) for heat production.