Output from a Biogas Plant

A biogas plant produces two outputs, biogas and digestate; both can be further processed or utilized to produce secondary outputs. Biogas can be used for producing electricity and heat, as a natural gas substitute and also a transportation fuel. A combined heat and power plant system (CHP) not only generates power but also produces heat […]

Renewable Energy: Evolution and Outlook

Major debates and discussions surrounding climate change and green living has placed an unprecedented focus on renewable energy. The future growth in the renewable energy sector is slated to be significant as people make an effort to minimize their energy footprint on Earth. While the support and evolution of renewable energy technologies is growing rapidly […]

Common Issues in Biopower Projects

Biopower projects in developing countries are often besieged by a wide range of issues. The issues enumerated below are not geography-specific and are usually a matter of concern for most of the biomass energy projects: Large Project Costs In India, a 1 MW gasification plant usually costs about USD 1-1.5 million. A combustion-based 1 MW plant would […]

Clean Energy from Food Wastes

The waste management hierarchy suggests that reduce, reuse and recycling should always be given preference in a typical waste management system. However, these options cannot be applied uniformly for all kinds of wastes. For examples, organic waste is quite difficult to deal with using the conventional 3R strategy. Of the different types of organic wastes […]

Making of Biomass Pellets

Biomass pellets are a type of biomass fuel, generally made from wastes from wood products manufacture, agricultural wastes, forestry residues etc. Pellets are manufactured in several types and grades as fuels for electric power plants, homes, and other applications. Pellets are extremely dense and can be produced with a low moisture content (below 10%) that allows them […]

Biomass Storage Methods

Sufficient storage for biomass is necessary to accommodate seasonality of production and ensure regular supply to the biomass utilization plant. The type of storage will depend on the properties of the biomass, especially moisture content. For high?moisture biomass intended to be used wet, such as in fermentation and anaerobic digestion systems, wet?storage systems can be […]

Renewable Energy Investment in South Africa

South Africa faces the dual challenge of pursuing economic growth and protecting the environment. South Africa has set up the institutional infrastructure for renewable energy projects which are beginning to pay dividends in the form of big investments from foreign as well as local investors and development of commercial solar, wind and biomass energy projects. […]

Financial Aspects of CDM Projects

The primary goals of CDM projects are to promote sustainable development in developing countries and to allow industrialized countries to earn emissions credits from their investments in emission-reducing projects in developing countries. Any CDM project requires a tremendous amount of administrative work which makes carbon finance a complicated undertaking.  A wide array of transaction costs associated with […]

Biological Desulphurization of Biogas

Biogas basically consists of methane and carbon dioxide. In addition, it also contains unwanted contaminants, especially hydrogen sulfide (H2S). Hydrogen sulfide mainly occurs because of the degradation of sulfur-containing proteins (e.g. methionine and cysteine) or the desulfurization of sulfates. The fermentation of manure and other organic wastes shows typical H2S concentrations in the range of […]

Overview of Biomass CHP

Biomass CHP is the simultaneous generation of multiple forms of useful energy (usually mechanical and thermal) in a single, integrated system using biomass wastes. Biomass conversion technologies transform a variety of wastes into heat, electricity and biofuels by employing a host of strategies. Conversion routes are generally thermochemical or biochemical, but may also include chemical and physical. […]

MENA’s Great Strides in Solar Sector

With the scheduled procurement of over 4 GW of solar power this year, the MENA region is making great strides toward establishing itself as a rising gigawatt-scale solar market. According to the Middle East Solar Industry Association (MESIA), over 3 GW was added to the MENA region’s pipeline in 2015.  Egypt firmly established itself as a hot […]

Bioenergy in Middle East and North Africa

There is a large potential for renewable resources in the Middle East which have remained more or less unharnessed. Apart from solar and wind, the Middle East also has abundant biomass energy resources which have remained unexplored to a great extent. According to conservative estimates, the potential of biomass energy in the Euro-Mediterranean region is […]

Renewable Energy in South Africa

South Africa, the most industrialized country in Africa, is highly dependent on conventional fuels which make it one of the largest emitters of greenhouse gases in the world. Coal provides around 75% of the fossil fuel demand and accounts for 90% of power generation in the country. A smooth transition to a low-carbon society requires […]

World’s Largest CSP Plants

With mammoth CSP plants in varying states of operation all across the world, the search for the true ‘world’s largest’ plant generally points to either California, Nevada, or Morocco. But which is really the biggest? What is Concentrated Solar Power Using mirrors to concentrate the sun’s energy, CSP technologies upgrade traditional steam turbines or engines to create electricity from heat. And, […]

Storage Systems for Biomass

Sufficient storage for biomass is necessary to accommodate seasonality of production and ensure regular supply to the biomass utilization plant. The type of storage will depend on the properties of the biomass, especially moisture content. For high?moisture biomass intended to be used wet, such as in fermentation and anaerobic digestion systems, wet?storage systems can be […]

Waste to Energy Industry – Trends and Forecasts

Incineration, with energy recovery, is the most common waste-to-energy method employed worldwide. Over the last five years, waste incineration in Europe has generated between an average of 4% to 8% of their countries’ electricity and between an average of 10% to 15% of the continent’s domestic heat. Around 130 million tonnes of municipal solid waste […]