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Renewable Energy Solutions

Integrating renewables, storage, and dispatchable power to deliver reliable, low-carbon energy.

Overview: Bridging Renewables and Reliability

The global energy transition is accelerating, driven by the need to reduce greenhouse gas emissions and increase resilience. Clarke Energy delivers integrated renewable energy systems that combine:

• Biogas-fuelled combined heat and power (CHP)
• Biogas upgrading to biomethane (renewable natural gas)
• Solar PV and wind integration
• Battery Energy Storage Systems (BESS)
• Hydrogen-ready peaking plants

By pairing intermittent renewable generation with dispatchable, low-carbon power, we maximise renewable penetration while maintaining supply security for utilities, industries, and communities.

Biogas-Fuelled Combined Heat and Power (CHP)

Clarke Energy is a global leader in biogas-to-power projects, delivering CHP systems that turn organic waste streams into renewable electricity and heat.

• Fuel sources: Agricultural waste, wastewater sludge, food waste, and landfill gas
• Benefits: On-site energy generation, reduced methane emissions, lower energy costs, and improved waste management
• Applications: Wastewater treatment works, agricultural facilities, industrial processing plants

By capturing and utilising the heat from electricity generation, biogas CHP systems can reach total efficiencies above 80% and deliver continuous, renewable power even when wind or solar output is low.

Alignment with the UN Sustainable Development Goals (SDGs)

Clarke Energy’s renewable gas production projects contribute to:

• SDG 7 – Affordable and Clean Energy: Expanding access to clean, renewable fuels
• SDG 9 – Industry, Innovation and Infrastructure: Building sustainable fuel production infrastructure
• SDG 12 – Responsible Consumption and Production: Using waste and renewable resources efficiently
• SDG 13 – Climate Action: Reducing emissions in energy, heat, and transport sectors

Biogas Upgrading to Biomethane

Hybrid Energy Systems

Battery Energy Storage Systems (BESS)

Renewable Integration with Peaking Plants

Biogas Upgrading to Biomethane

In addition to on-site power generation, Clarke Energy offers biogas upgrading plants that refine raw biogas into biomethane (renewable natural gas) for injection into the gas grid or use as vehicle fuel.

• CO₂ removal: State-of-the-art upgrading technologies separate methane from CO₂
• Sustainability: Biomethane can replace fossil natural gas in power generation, heating, or transport
• Revenue potential: Biomethane can be sold into renewable gas markets under green gas incentive schemes

Upgraded biomethane can also be paired with hydrogen-ready gas engines or fed into district heating and industrial energy networks.

Hybrid Energy Systems

Our hybrid systems combine renewable generation with BESS and CHP, delivering:

• Grid stability during variable solar and wind output
• Rapid-response power during demand spikes or outages
• Off-grid capability via microgrid control platforms

Clarke Energy hybrid microgrids can operate in grid-connected or island mode, making them ideal for remote operations, industrial parks, and data centres.

Battery Energy Storage Systems (BESS)

BESS captures surplus renewable energy and releases it during peak demand, enabling:

• Reduced curtailment of solar, wind, and biogas generation
• Frequency regulation and grid balancing
• Energy cost savings through peak shaving

We provide turnkey BESS projects for both grid-scale and behind-the-meter applications, engineered for seamless integration with CHP, solar, and wind.

Renewable Integration with Peaking Plants

When renewable output drops—such as at night or during low wind—hydrogen-ready gas peaking stations provide rapid, dispatchable power.

• Fast-start capability ensures security of supply in seconds
• Can operate on low-carbon or renewable fuels including biomethane
• Supports higher renewable penetration without sacrificing reliability

Frequently Asked Questions about Renewable Energy

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What renewable energy solutions does Clarke Energy provide?

We deliver biogas-fuelled CHP, biogas upgrading to biomethane, hybrid renewable systems, BESS, and hydrogen-ready peaking plants.

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How does Clarke Energy support intermittent renewables?

We integrate BESS, CHP, and flexible generation to stabilise solar and wind output and ensure reliable power.

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Can Clarke Energy provide off-grid renewable systems?

Yes. Our microgrids can operate independently with renewable generation and storage.

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What is the benefit of upgrading biogas to biomethane?

Biomethane can be injected into the gas grid or used as transport fuel, creating revenue and displacing fossil gas.

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Are Clarke Energy’s gas engines hydrogen-ready?

Yes. Our engines can run on natural gas, biomethane, and hydrogen blends, enabling future fuel transition.

Power Your Sustainability Journey with Renewable Energy

Clarke Energy’s experts can help you explore how renewable energy can advance your organisation’s ESG and decarbonisation objectives.