Off Grid Power in Liberia 


Please check out our Products page if you are interested in producing your own biochar. We have numerous systems with production at various scales.

We currently produce large quantities of SkyCarbon biochar at our Berkeley CA facility and have it available for retail sale.  Queries for larger bulk sale should be sent to

IBI Certificate for SkyCarbon biochar

Adding biochar to soil can result in a significant and long-term sink of atmospheric CO2, especially when co-composted with other green waste which creates a large multiplier effect.

Agricultural-sector emissions were a key topic in the COP27 meeting held in Egypt, revealing that biochar is uniquely suited to provide numerous solutions. Problems including nitrogen losses to the atmosphere, phosphorus losses to the water tables, and the bioavailability of soil contaminants are all particularly well addressed by biochar soil amendment. These are in addition to the well documented effects of biochar on water and nutrient retention, reduction of methane emissions, and support of the soil microbiome.

Biochar production and use are widely seen as a vital component of global climate-change mitigation efforts and biochar markets and credits are an increasingly common and important tool in this effort. APL has increased its focus on the science and technology of biochar, working with agronomists and academics, the California Energy Commission, and US Departments of Energy and Agriculture to continue to explore the cutting edge of the practical and effective production and use of biochar. To this end, we have continued to develop and improve our technology to optimize biochar production in our existing products like the Power Pallet and PowerTainer, as well as with the design of new products, such as the CharTainer and the creation of various community-based programs to help achieve these goals.

All of APL’s machines output SkyCarbon Biochar generated by the pyrolysis of their waste biomass feedstocks, which come principally from agricultural and forestry residues. Our SkyCarbon biochar has been certified by the International Biochar Initiative (IBI). Since its inception, IBI has established itself as the leading non-profit dedicated to the promotion of biochar research and commercialization. We are grateful for their efforts and proud to have been able to meet their standards, confident that this will assist in our efforts to commercialize and expand the positive climate impact of APL technology.

Biochar can be generated by pyrolysis at any temperature above about 350°C , but at such lower temperatures various contaminants, tars, and harmful combustion byproducts such as Polycyclic Aromatic Hydrocarbons (PAHs) may be at much higher levels. Our gasifier’s temperatures, which are in excess of 650°C, assure more complete conversion of these chemicals into a stable carbon matrix, while increasing its surface area and electrical and microbiological activity, resulting in the very high quality of our SkyCarbon biochar.

Biochar is poised to transform agriculture.

Chemical fertilizers were one key to the huge increases in agricultural productivity created by the green revolution in the 60’s. However, unintended consequences such as the pollution via runoff, as well as other ecological, economic, and climate costs threaten to derail the huge crop yield increases that have helped reduce global poverty and starvation. Making these industrial agricultural practices more sustainable is vital to solving the climate puzzle, with co-composted biochar appearing to be one of the most promising changes we can make to maintain agricultural productivity while simultaneously reducing atmospheric GHGs along with these other knock-on effects of the green revolution.

More resilient agricultural systems are going to be needed as the climate continues to change with its increasingly severe droughts. Biochar’s most well documented and robust ability to retain more water in the soil for longer periods will also increase biochar’s desirability as a soil amendment, which is sure to make it a vital commodity.

Subsidies for carbon capture solutions

Biochar is also rising as a candidate for carbon credits and other carbon capture programs. Hopefully such economic incentives will hasten the adoption of these restorative agricultural practices for which biochar is becoming an increasingly active component.

Our CharTainer containerized biochar pyrolysis system, which is nearing commercial release with the generous support of the California Energy Commission, maximizes biomass throughput and minimizes levels of harmful fractions in the SkyCarbon biochar it creates. The potential here in California alone for commercializing the integration of desperately needed forest fire remediation in the Sierra Nevada, with drawing down atmospheric CO2 at the same time that it revitalizes the health of the soil in some of the world’s most productive farmland, often called the salad bowl of the world, is a golden opportunity.

All Power Labs, as usual, is committed to creating game-changing devices and processes at the forefront of climate mitigation technology.

SkyCarbon Specifications

Source and composition
FEEDSTOCK TYPEUnprocessed Feedstock
Moisture (at time of analysis)13%
Organic Carbon (Corg)67.8%
Total Ash15.4%
Total N0.46%
Electrical Conductivity7.180 dS/m
Liming13.9% CaCO3
Particle size
< 0.5 mm10.3%
0.5 – 1 mm8.7%
1 – 2 mm18.5%
2 – 4 mm34.4%
4 – 8 mm25.2%
8 – 16 mm3.0%
Laboratory analysis results
Germination Inhibition AssayPASS
Polycyclic Aromatic Hydrocarbons (PAHs), total (sum of 16 US EPA PAHs)67.46 mg/kg – PASS
Polycyclic Aromatic Hydrocarbons (PAHs), B(a)P-TEEQ basis0 mg/kg – PASS
Dioxin/Furan (PCDD/Fs), WHO-TEQ basis0 mg/kg – PASS
Polychlorinated Biphenyls (PCBs), total (sum of 7 US EPA PCBs)0 mg/kg – PASS
Arsenic0.6 mg/kg – PASS
CadmiumND – PASS
Chromium1.4 mg/kg – PASS
CobaltND – PASS
Copper46.3 mg/kg – PASS
Lead0.3 mg/kg – PASS
MercuryND – PASS
MolybdenumND – PASS
Nickel1.6 mg/kg – PASS
SeleniumND – PASS
Zinc4.1 mg/kg – PASS
Boron89.6 mg/kg – DECLARATION
Chlorine5341 mg/kg – DECLARATION
Iron341 mg/kg – DECLARATION
Manganese41 mg/kg – DECLARATION