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  • info@empereal.com



What is unique and innovative about your business model?

Empereal's business model is built on three principles:

  • Sustainability beyond government subsidies and financial incentives; 
  • Continuous power and water leveraging unlimited sources of Sun, Sea water and Renewable biomass 
  • Deliver high social impact along with economic impact.

Why have you chosen a distributed model of power and water production instead of the traditional centralized model?

We aim to produce power and water when and where it is needed, close to the point of consumption. Renewable energy sources and sea water are distributed by design, and our technology and solutions are competitive with traditional models to allow this flexibility. Besides, this takes out the transmission losses and associated costs of storage and distribution.

What is the reason behind choosing the unusual product combination of power and water?

Power and water are among the foremost challenges that humankind faces today. IEA predicts that if we continue to tap fossil sources and consume at current usage levels, the world will run out of oil reserves by 2050. According to The International Food Policy Research Institute, by 2050, more than half of the world's population will be at risk due to fresh and potable water shortage (if we continue business-as-usual). We want to address both of these challenges proactively and head-on. Therefore, we decided to focus our research dollars on a green and sustainable method for the production of steam, which can be used both to run turbines to generate electricity, and also to transfer heat for thermal desalination, thereby producing ultra-pure water.

Can you set up cogeneration power plants to supplement my power needs? If so, what capacity can you provide?

Yes, setting up cogeneration plants is one of our core competencies. We can provide capacities from 500kW to 10MW in a cogeneration plant.

What is the difference between Photovoltaic and solar thermal technologies? Which is superior?

  1. Photovoltaic cells convert the light energy from the sun directly into electricity through photovoltaic effect. Solar thermal technologies concentrate the heat energy from the sun, and use it to heat water at high pressure. The superheated steam produced will be connected to turbine and in turn generators to produces electricity.

  2. Solar thermal technologies are typically larger-scale and grid friendly in comparison with PV. The production of steam from concentrated solar technologies allows us the flexibility of producing power, pure water, and also to provide industrial process steam directly to industries.

  3. Since solar energy is intermittent by nature, the only way to guarantee continued output is through storage (in the case of PV) or by using hybrid methods to generate steam (in the case of solar thermal). Storage is currently a very expensive proposition, whereas hybridization in conjunction with solar thermal makes the business model quite viable.

What are the different types of solar thermal technologies?

There are three main types of solar thermal technologies parabolic trough, tower, and Fresnel reflectors. Parabolic trough power plants use a curved, mirrored trough which reflects the direct solar radiation onto a glass tube containing a fluid running the length of the trough, positioned at the focal point of the reflectors. Power towers capture and focus the sun's thermal energy with thousands of tracking mirrors in roughly a two square mile field. A tower resides at the center of the field and the heliostats focus concentrated sunlight on a receiver that sits on top of the tower. Fresnel reflectors use a series of long, narrow, flat mirrors to focus light onto one or more linear receivers positioned above the mirrors.

How does LFR compare with other solar thermal technologies?

Linear Fresnel Reflectors have the smallest land requirements, are the cheapest to set up, have the lowest maintenance cost, and give the highest efficiency among all solar thermal technologies.

How do you generate power when there is no sunlight? i.e, at night?

We have pioneered a 100% clean energy hybrid model by combining solar and biomass sources. This gives us the ability to produce steam, power and water from renewable energy sources 24 hours a day, 365 days a year.

Will I be able to run my plant economically and competitively if government subsidies are removed?

One of Empereal's founding goals was to ensure sustainability of the plants we set up beyond the period of government subsidies. Different combinations of solar/biomass sources, and power/water/steam products will give this long-term sustainability to our plants.

What technologies do you use for water desalination?

We use Multiple Effect Distillation (MED) for seawater desalination, and Reverse Osmosis (RO) for treatment of brackish water, that is further inland.

The biggest deterrent to desalination is the high amount of energy it requires. How have you solved this challenge?

The energy needs for our desalination plants are fully met by the accompanying solar and biomass power installations. The combination of these power sources makes the energy requirements for desalination affordable. In addition, Multiple Effect Distillation, our preferred method of desalination, has the lowest energy requirements of all desalination methods.

How do you enable social transformation through your projects?

We aim to set up a distributed chain of small-scale power (1MW-50MW) plants and desalination plants (1MLD, 10 MLD) that can meet the power and drinking water needs of rural communities. Our goal in setting up these plants is to provide economic and social development to these communities. The social cost benefit analysis of providing power and water to rural communities will significantly enhance their standard and quality of living, in addition to rural empowerment and rural employment. The social rate of return (SRT) is estimated to be over 10% for each infrastructure project that we plan to deploy in emerging and rural coastal economies.

Is the power-water combination mandatory for plant setup, or can these products be provided separately?

All our products power, water and steam - can be independently produced, however product combinations may result in better economic rate of return for clients and investors.

Since you depend on natural resources like the sun, seawater and biomass, how important a criterion is location for setting up a power/water plant?

All three factors contribute to dictating possible locations. The amount of solar insolation and proximity to the sea pose more stringent criteria than the availability of biomass, since that is more easily available. We will be happy to conduct feasibility studies for your specific requirements.

Empower communities through access to clean energy and pure water delivered via cost-effective technologies.