HyGaaS · hygaas.com

TurnkeyHydrogen Gas as a Service.Zero CapEx. Pure Performance.

On-site green hydrogen generation and storage. We engineer, deploy, own, and operate Alkaline, PEM, and AEM electrolyzer plants with 350-bar, 700-bar, and Solid-State Metal Hydride storage.

99.999% Purity

Electrolyzer Grade

350 & 700 Bar

High-Pressure

Sub-Second

Dynamic Response

Zero Upfront

CapEx

Technology

Electrolyzer & Storage Technologies

Compare stack architectures and storage modalities. Select a metric to highlight it in the table, or filter to a single technology.

Alkaline (AEL)

High durability, cost-effective MW-scale base load

Proven alkaline electrolysis with nickel-based electrodes and liquid alkaline electrolyte. Ideal for continuous MW-scale hydrogen production with lowest LCOH at high utilization factors.

Efficiency %
65–72%
Operating Pressure
30 bar (integrated)
Ramp-up Time
5–15 min
Best Application
Base load, grid PPA, industrial clusters

PEM (Proton Exchange Membrane)

Rapid load-following, native high pressure, optimal for solar/wind coupling

Solid polymer electrolyte stack with platinum-group catalysts. Sub-second ramp rates enable direct coupling to variable renewable generation without buffer storage.

Efficiency %
55–65%
Operating Pressure
30–35 bar (native)
Ramp-up Time
< 1 sec
Best Application
Renewable coupling, mobility, dynamic loads

AEM (Anion Exchange Membrane)

Next-gen non-precious metal catalyst architecture, low CapEx, modular scalability

Combines alkaline chemistry with solid membrane architecture. Non-precious metal catalysts reduce stack cost while maintaining PEM-like dynamic response characteristics.

Efficiency %
60–68%
Operating Pressure
35 bar
Ramp-up Time
2–5 sec
Best Application
Modular deployments, cost-sensitive sites

SOEC (Solid Oxide)

High-temperature waste-heat integration for heavy manufacturing

High-temperature electrolysis operating at 700–850°C. Recovers industrial waste heat to achieve the highest system efficiencies for integrated heavy manufacturing sites.

Efficiency %
80–90% (with heat recovery)
Operating Pressure
1–5 bar
Ramp-up Time
30–60 min
Best Application
Steel, glass, cement with waste heat

Alkaline (AEL)

Efficiency
65–72%
Pressure
30 bar (integrated)
Ramp-up
5–15 min
Best Application
Base load, grid PPA, industrial clusters

PEM (Proton Exchange Membrane)

Efficiency
55–65%
Pressure
30–35 bar (native)
Ramp-up
< 1 sec
Best Application
Renewable coupling, mobility, dynamic loads

AEM (Anion Exchange Membrane)

Efficiency
60–68%
Pressure
35 bar
Ramp-up
2–5 sec
Best Application
Modular deployments, cost-sensitive sites

SOEC (Solid Oxide)

Efficiency
80–90% (with heat recovery)
Pressure
1–5 bar
Ramp-up
30–60 min
Best Application
Steel, glass, cement with waste heat
The HaaS Model

Hydrogen Gas as a Service Blueprint

From feasibility to metered offtake — we own the technology risk so you can focus on decarbonization outcomes.

  1. 1

    Feasibility & Grid/Power Integration

    Site assessment, grid interconnection study, renewable PPA analysis, and hydrogen demand profiling. We deliver a bankable feasibility report within 4–6 weeks.

  2. 2

    Turnkey Modular Installation

    Electrolyzer stack, balance of plant, compression, storage, and dispensing — engineered, permitted, and commissioned as a single modular package on your site.

  3. 3

    24/7 Remote Monitoring & Telemetry

    Cloud-connected SCADA with predictive maintenance, stack health analytics, and guaranteed 99.5% uptime SLA backed by on-site response teams.

  4. 4

    Metered Pay-per-kg Hydrogen Offtake

    Transparent $/kg pricing indexed to your offtake volume. No capital expenditure — pure operational expense with performance guarantees.

Traditional CapEx Model
  • Electrolyzer stack procurement ($800K–$2M/MW)
  • Balance of plant & compression
  • High-pressure storage vessels
  • Permitting & EPC contractor risk
  • Ongoing maintenance & stack replacement
  • Technology obsolescence exposure
HyGaaS OpEx Model
  • Zero upfront capital expenditure
  • Guaranteed 99.5% uptime SLA
  • Predictable $/kg operational pricing
  • Continuous technology upgrades included
  • 24/7 remote monitoring & on-site response
  • Performance guarantees with exit flexibility

Zero technology risk · Guaranteed uptime · Flexible contract terms

Sizing Calculator

Interactive HaaS Estimator

Configure your daily hydrogen demand and application profile to receive a recommended stack and storage configuration.

Plant Configuration

250 kg/day
25 kg/day5,000 kg/day

Recommended Configuration

Recommended Stack

12.5 MW PEM + 700 bar Storage Buffer

~12.5 MW installed electrolyzer capacity

Annual CO₂ Offset

910,219 metric tons

Storage Recommendation

700 bar high-capacity trailer module

Estimated Monthly Opex

$32,000

Industries

Industry Applications

Purpose-built hydrogen infrastructure for the sectors driving the energy transition.

Fleet Depots & Heavy Logistics

350/700 bar dispensing infrastructure for Class 8 trucks, transit buses, and last-mile delivery fleets with guaranteed fill rates.

Green Steel, Glass & Metallurgy

Direct reduced iron (DRI) hydrogen injection, furnace atmosphere control, and SOEC waste-heat integration for decarbonized heavy industry.

Chemical & Fertilizer Production

Green ammonia feedstock, methanol synthesis, and Haber-Bosch loop hydrogen with 99.999% purity and continuous supply guarantees.

Zero-Emission Microgrids & Data Centers

Metal hydride backup storage, fuel cell UPS integration, and islanded renewable microgrids with sub-second load response.