Energy trade mechanisms, grid must for regional energy security

on 25/10/2023

Energy experts in a moot in Pakistan said that regional energy security can be achieved by building regional energy trade mechanisms and grid by increasing the share of renewable energy to provide it on affordable rates to the consumers.
Addressing an event titled “Energy Security in South Asia and Transition of Sustainable Sources” organized by Sustainable Development Policy Institute (SDPI) and Friedrich Naumann Foundation for Freedom Pakistan (FNF), Director Pakistan Office FNF, Birgit Lamm remarked that 60 percent of South Asia’s energy demand was imported, increasing vulnerability to external shocks like Russian-Ukrainian War and dollar exchange rate fluctuations.
She said that energy was a lifeline for South Asian economies and the issue of high energy bills was a shared regional concern and not limited to Pakistan, adding that structural challenges in the regional energy landscape and combined with demographic shifts hampered sustainable economic growth.
Senior Advisor and Research Fellow SDPI, Dr Hassan Daud Butt said that regional energy challenges were common and collaborative, integrated approach for sustainable, equitable renewable energy transition was the way forward amid rising costs and socio-economic disparities which calls for amplifying efforts for regionally acceptable solutions.
He stressed for bolstering regional co-operation beyond political conflicts, making responsive energy policies to tackle evolving economic challenges and global trends as means to uplift marginalized and vulnerable communities and ensuring inclusive access to clean energy in South Asia.
Head of Energy Unit, SDPI, Ubaid-ur-Rehman said that reliance on imported energy sources had created vulnerability to energy supplies and price fluctuations for South Asian countries, as apparent from the impacts of the ongoing regional turmoil.
Research Fellow (Renewable Energy), Ahsan Javed highlighted the untapped regional energy trade potential which must be leveraged to boost energy security through regional grid. Regional trade of surplus electricity can also increase revenue generation for economic growth, he stressed.
Lead Researcher, Energy Unit, SDPI Dr. Khalid Waleed discussed the energy profiles of South Asian countries and charted the way forward for energy cooperation by overcoming political-economic barriers, removing tariffs, promoting energy networks, exploring joint financing avenues, joint platform for energy planners and sharing energy and water statistics.

Can Pakistan extract fullest gains of Thar Coal?

on 25/10/2023

Burning Pakistan’s locally extracted coal—Thar Coal—for power generation seems to be a possibility not so closer as the imported-coal-fired power plants across Pakistan do not burn even a small fraction of local coal for power generation although they had agreed to mix Thar coal with the imported one up to 10 to 15 percent.
During the PTI government, power sector sources told Engineering Review that the federal government and the power plants had agreed to start mixing Thar Coal with the imported coal for power generation so that they are converted to local coal in a phased manner. The objective, of course, was to save foreign exchange so that the tariff of the electricity should be brought down, an official says. ‘Only Jamshoro Power Plant was found to mix Thar coal with the imported one’.
The recent media reports say an investment company—AsiaPak—has agreed to invest in converting the Jamshoro Power Plant from imported to locally extracted Thar coal. The objective is the same as was set by the former government for all imported-coal-fired power plants across Pakistan.
AsiaPak Investments is a private investment firm with operational assets in Pakistan and Hong Kong.
Shehryar Chishti, CEO of AsiaPak Investments was quoted in a report as saying that “the federal government, encouraged by K-Electric and AsiaPak Investments, is now focused on converting this plant to Thar coal so that for the next 30-year life of this project consumes only Thar coal and not imported coal.”
Jamshoro Power Plant, financed by the Asian Development Bank (ADB) is almost complete with a total cost of US$545 million but the report says it remains non-operational due to the increasing cost of imported coal. However, the officials privy to the issues of the Jamshoro Power plant say the costs of Thar coal and the imported one have leveled up due to a decrease in the cost of imported coal in the international market. Also, they say the imported coal is available in Pakistan at a spot rate in Pakistani currency. Thus, converting the plant to Thar Coal for which engineering costs are involved that in return will increase the power tariff is not a wise decision at the moment, they suggest.
Concurrently, Shehryar Chishti reportedly said the company would invest in the conversion of the plant, enabling power generation through local coal sourced from Thar at low cost. “We have submitted our plan to the government and soon after approval we will execute our investment plan,” he said. The plant would be ready by next year for power generation through local coal.
Information from Jamshoro says a Chinese company has moved a conversion plan which according to AsiaPak Investments cost around $50 million.
Importantly, the plan is in a thought process in Islamabad and no decision has been made so far as various aspects of the conversion are being looked into, says an informed engineer.
He says no matter K-Electric is interested in evacuating power from the power plant which the company believes produces cheaper electricity but the conversion is not so easy at this stage.
He said the transformation of the plant from imported coal to Thar Coal would take not less than one and a half years and it would increase the cost of the project as well as the interest rate which according to the calculation will stand not less than US$ 90 million.
However, Chisti reportedly said the process of conversion would take at least 10 months and electricity generated through local coal would be fed into the national grid. He hoped that power generation through local sources would reduce the country’s energy import bill. – With inputs from media reports n

Empowering students with skills and knowledge Prof. Dr. Attiya Baqai receives Arduino TinyML Kits from Edge Impulse

on 24/10/2023

Prof. Dr. Attiya Baqai, a dedicated researcher and Embedded Machine Learning curriculum designer at the Department of Electronic Engineering, Mehran University of Engineering and Technology Jamshoro, has successfully secured a coveted spot in the Edge Impulse University Program for 2023.
Edge Impulse is a company based in San Jose, California USA. It offers the latest in machine learning tooling, enabling all enterprises to build smarter edge products to bring more AI products to market faster, and helps enterprise teams rapidly develop industry-specific solutions in weeks instead of years.
This remarkable achievement highlights Dr. Baqai’s exceptional contribution to the development of a compelling curriculum proposal that aligns seamlessly with the cutting-edge world of Tiny Machine Learning (TinyML), says a university communication.
Prof. Baqai’s proposal exemplifies innovation and promises to empower students with the skills and knowledge needed to thrive in the era of embedded machine learning.
As part of this prestigious acceptance into the program, Edge Impulse, and Arduino have generously provided Prof. Baqai with ten TinyML kits. These kits will be used for experiences and the course, enriching their learning experiences, and enabling hands-on exploration of the fascinating world of Edge Machine Learning. We extend our heartfelt thanks to Edge Impulse and Arduino for their commitment to education and innovation, says the communication.
In terms of the kit distribution in contrast to last year’s “first-come, first-served” criteria, this year’s selection process was significantly different and was as follows:
The selection process was not open to schools that had previously received kits.
Each school was awarded one bundle of kits.
Kits were allocated based on a meticulous evaluation of specific factors, including the demonstrated need, the quality of the provided course information, and the proposed curriculum’s effective utilization of Edge Impulse.
Dr. Baqai made persistent efforts to secure the kits once more this year, ultimately leading to her successful selection in the program. Prof. Dr. Attiya Baqai’s achievement is a testament to her dedication and an exciting milestone for the Department of Electronic Engineering at Mehran University. This curriculum will undoubtedly propel the department and its students to the forefront of the evolving field of embedded machine learning.
We express our enthusiastic anticipation as we look forward to the seamless integration of this curriculum into the academic offerings at Mehran University, further solidifying its position as a leader in electronic engineering education.
‘Congratulations to Prof. Dr. Attiya Baqai on this remarkable achievement and our sincere gratitude to Edge Impulse and Arduino for their continued support in advancing the frontiers of education and technology. Together, we are shaping the future of Tiny Machine Learning.’

Healthcare system in Pakistan

on 24/10/2023

The World Health Organization ranks Pakistan 122 out of 190 nations in terms of health care. When it comes to infant mortality, Pakistan ranks third in the world. Being a developing country, it is suffering in several disciplines, including biomedicine. The Pakistani government has never made health care a priority. Since 1985, there hasn’t been a significant establishment in the public health sector, although the population has nearly tripled. More than 60 million people live in poverty and are unable to meet their basic necessities owing to a lack of resources/finance. Local hospitals help poor people for free, but they cannot accommodate all of Pakistan’s underprivileged population. People in rural communities are unaware of ailments and hence don’t really seek adequate care. The major cause of illness spread among the poor is a lack of knowledge, diagnosis, and treatment options. Pakistan’s major public health issues include:
The COVID-19 pandemic’s relentlessly demanding requirements started the development of the contemporary healthcare environment. Increases in patient flow, a lack of available staff, and the need for frequently changing procedures all combined to spur change at all levels. Further complicating factors include huge tech advancements and governmental laws.
What are Pakistan’s Health Sector’s Biggest Challenges?
It is hard to ignore the progress made in the health sector since Pakistan gained its freedom. The Pakistani healthcare system is currently dealing with several problems and complications. The health industry in Pakistan is facing the following significant challenges:
The majority of people are unlikely to use the public health system’s healthcare services due to the poor infrastructure of the Basic Health Units (BHUs) and Rural Health Centers (RHCs), and as a result, rural people are routed to tertiary care institutions. The distance between healthcare facilities, as well as a lack of transportation choices due to poor road conditions, limit their access to these services. Furthermore, the public sector in Pakistan has been determined to be neglected due to a lack of human resources, a lack of health education, a lack of openness, and barriers related to language and cultural differences. Attending BHUs is a nightmare for many people due to the aforementioned reasons.
One of the factors contributing to Pakistan’s failing healthcare system is a lack of adequate infrastructure. This department lacks effective policy development and planning. As a result, residents have access to insufficient healthcare facilities. A typical government hospital does not have enough physicians, nurses, and employees. Such hospitals are typically congested since they serve a large population in the surrounding region. There aren’t enough beds (due to an overabundance of patients).
Hospitals are unclean and unhygienic, they lack security, patient care is unheard of, medications and consumables are frequently in short supply, workers may be dishonest and demand bribes from patients, and they may even lack vital utilities like a constant supply of water, power, and fuel. Their ambulances may be unavailable due to malfunctions or corruption, forcing patients to fend for themselves.
Political and higher-level corruption is one of the causes of Pakistan’s inadequate healthcare system. Corruption has made resources at hospitals and other healthcare facilities inaccessible.
People are obliged to seek treatment from private healthcare providers when public health systems fail. The purpose of private healthcare institutions is profit. There is an apparent demand-supply imbalance, and they take advantage of the limited supply to enhance their own pricing. As a result, medical care at a private hospital may be much more expensive than treatment in a public hospital. However, because a large proportion of our population lacks health insurance, they must pay for their own care. As a result, many people cannot afford health care.
Although Pakistan has one of the largest pharmaceutical industries, many drugs must be imported from other nations. Similarly, many surgical and other medical equipment is imported from foreign nations. As a result, more funding is required to meet the demand for these imported items. However, due to a lack of resources and increasing economic pressures, Pakistan’s health sector is unable to satisfy the demand for these items, which are essential for residents’ fundamental requirements. The same is true for medicines imported from other nations.
Urban residents have greater privileges and access to more basic medical facilities. Similarly, they are highly informed about health concerns. However, the situation in rural regions is rather different. People in rural locations are often unaware of immunizations, treatments, precautions, and preventions for a variety of health conditions. This puts further strain on Pakistan’s healthcare system. As a result, it is critical to begin educating rural residents and assisting them in obtaining basic health care.
Even though a large number of students graduate each year, there is still a shortage of educated and professional workers in Pakistan’s health industry. The biggest cause is a lack of seats in the public sector, which makes it difficult for educated individuals to come and serve the country.
Another factor for the scarcity of trained health professionals in Pakistan is that many health professionals study and work in other countries. This is a significant loss for Pakistan’s health industry.
How Can Pakistan’s Health Sector Be Improved?
There was no tipping point in Pakistan; rather, the administration recognized that the country’s health system had deteriorated. Comparisons with neighboring nations like as Afghanistan and the Indian Punjab bring the problem into stark perspective.
The primary goal of enhancing Pakistan’s healthcare industry is to increase life quality and lower the public mortality rate.
To establish a better health sector in Pakistan, the Pakistani government and private sectors should focus on following topics:
• Encouraging medical device innovation and manufacture in Pakistan
• Increased funding for medical research
• Upskilling current employees and improving medical, nursing, and technical education
• Health-care coverage provided by the government
• Public awareness campaigns
• To combat corruption, hospitals and other health departments must be checked and balanced
• International collaborations are also possible
Conclusion: Pakistan is confronted with several economic and political issues. And, even after 74 years of independence, Pakistan’s health sector remains deplorable, with several difficulties ahead. Pakistan faces several obstacles, ranging from corruption to a dearth of well-educated manpower. It is high time to create improved health policies and begin producing medical gadgets in the country. (The author, with a Bachelor’s degree in Biomedical Engineering from Mehran University is serving as Assistant Manager of Quality at Alsons Technology Pvt. Ltd.)

Transfer of Wireless Power via Radiant Technique

on 24/10/2023

The distance between the transmitter and receiver, the wavelength, and the Rayleigh criteria or diffraction limit, which is used in conventional radio frequency antenna design and also applies to lasers, may determine the dimensions of the components. A rough spot size at any given distance from the aperture can be calculated using Airy’s diffraction limit. Shorter wavelengths (higher frequencies) of electromagnetic radiation exhibit less diffraction; as a result, a blue laser exhibits less diffraction than a red laser. Microwave power beaming has the potential to be more effective than lasers and is less susceptible to air attenuation brought on by dust or aerosols like fog. Here, the power levels are estimated by summing the aforementioned variables, as well as the gains and losses resulting from the antenna’s properties, the medium’s transparency, and its dispersion. The act of doing so is referred to as link budget calculation.
The challenge with power beaming by microwaves is that the needed aperture diameters are relatively big for the majority of space applications due to diffraction restricting antenna directionality. For instance, the 1978 NASA study on solar-powered satellites called for a transmitting antenna with a 1-kilometer (0.6 mi) diameter and a receiving antenna with a 10-kilometer (6.2 km) diameter for a microwave beam operating at 2.45 GHz. Although shorter wavelengths may have issues with air absorption and beam obstruction by rain or water droplets, these sizes can be somewhat reduced by using them. The “thinned-array curse” prevents us from merging the beams of several smaller satellites to create a narrower beam. With shorter wavelengths of electromagnetic radiation, often in the microwave range, power beaming over longer distances can be accomplished using radio waves. The microwave energy can be transformed back into electrical energy using a rectenna. Over 95% of rectenna conversion efficiency has been attained. It has been suggested to beam power to spacecraft that are departing orbit and to transmit energy from solar power satellites in orbit to the Earth using microwaves.
The idea of harvesting solar energy from the sun using solar power satellites (SPS) in space and transferring it to Earth is known as space-based solar power (SBSP, SSP). Its benefits include the potential for very little nighttime and a better ability to orient toward the sun. This is because there is less reflection and absorption of sunlight by the atmosphere. Microwaves, for example, can be sent through the atmosphere to receivers on the Earth’s surface via space-based solar power systems, which transform sunlight into another type of energy. Since the early 1970s, several SBSP concepts have been investigated, but none of them is economically feasible given the cost of space launch today. The use of microwaves for wireless high-power transmission is widely established. At the Goldstone Deep Space Communications Complex in California in 1975 and more recently (in 1997) at Grand Bassin on Reunion Island, experiments in the tens of kilowatts were conducted. These techniques cover distances of about one kilometer.
By turning electricity into a laser beam that is then received and focused onto photovoltaic cells, power can be supplied using electromagnetic radiation that is closer to the visible portion of the spectrum (.2 to 2 micrometers) (solar cells). Because the power is blasted at a receiver that can transform it into electrical energy, this method is frequently referred to as “power beaming.” Special photovoltaic laser power converters that are tailored for converting monochromatic light are used at the receiver. Narrow beam cross-sections can be transmitted over long distances via collimated monochromatic wavefront propagation. As a result, the power decreases very little or not at all as the distance between the transmitter and receiver grows.
Solid-state lasers are tiny enough to fit in small items. There is no radio-frequency interference with current radio communication, including Wi-Fi and mobile phones. Only receivers struck by the laser receive electricity for access control.