Dr. Babu Ram presented his perspectives on Sub-Sharan Africa energy access to Global Superior Energy Performance Partnership power working group in Ankara, Turkey.


Dr. Babu Ram presented his perspectives on Sub-Sharan Africa energy access to Global Superior Energy Performance Partnership power working group in Ankara, Turkey.
Dr. Babu Ram, as part of the African Development Bank, supervised the new construction and rehabilitation/expansion of two substations at Dar Es Salaam, and one at Arusha, and construction of distributions networks in Mwanza and Shinyanga to connect additional 32,000 customers to grid.
I was delighted to participate in the Ukrainian Energy Forum 2020. Based on the interactions with policy makers, marketers, academics, investors, and high officials of key energy sector institutions, I noted a lot of opportunities that are coming up in the renewable energy business for investors, bilateral aids, and consultants in that country. There are certain risks, but manageable.
Author: Dr. Babu Ram
Solar photovoltaic power plants are increasingly being installed due to reduction of cost of photovoltaic technology, guaranteed off-taking of power produced, feed-in-tariffs plus production tax benefits. Feed-in-Tariffs are giving way to renewable energy auctions. It is estimated that the demand for O&M services will significantly rise in near future.
The O&M practices comprise of preventive and reactive maintenance. The preventive maintenance is essential as it improves the plant output by 1-5%; it is planned in advance to upkeep the system. Key activities are washing panels and vegetation management, etc. The reactive maintenance arises due to unplanned outages caused by failure of power plant components such as inverters, AC subsystem, DC subsystem, etc. Of these, inverter breakdown tops the list of component failures. 60-65% of plant down time is ascribed to inverter breakdown, which is major cause of loss of electricity production.
O&M services can be outsourced from a third party. O&M contract’s cost and performance are significantly influenced by the warranty clause of the conditions of contract. The warranty clause phrasing should be precise to convey expectations to contractor; it should capture major equipment that are likely to fail. The O&M contractor generally provides 10 year warranty period. However, some service providers even quoted 15-20 year warranty period. That seems unrealistic as the plant may require major renovation & modernization of equipment after the 15th year of the plant life. The EPRI White Paper (Assessing Solar Photovoltaic Operations and Maintenance Challenges) raises doubts about the realism of warranty period above 10 year in terms of whether the system integrator understands the warranty concepts; and it makes adequate provision for warranty liability in the balance sheet.
From the accounting perspective, manufacturer/supplier records the expected cost of warranty liability in the balance sheet, as per GAAP requirement. At the same time, it records the estimated warranty expense in the income statement in the same period in which sales revenue is recorded. Liability amount is reduced with defective equipment/component replaced. The cost of inventory is also reduced in the same amount.
GAAP requires manufacturer/supplier to estimate the warranty claim as accurately as possible. However, it is not easy to predict rate of failure of equipment accurately. While estimating warranty liability, company is tempted to understate liability to report higher income in the current year. On the other hand, the company might overstate warranty liability to report lower earnings; in this way it creates additional liability -“cookie jar reserve” to use it to reduce future warranty expenses.
The Photovoltaic Plant owners should carefully state the warranty clause in the O&M contract as well as assess the earnings management practices of service provider in the financial statements versus competitors in negotiating an O&M contract.
The cyber-attacks are likely to increase in the electricity grid in the next ten years in the world due to: (1) the internet-connected systems are increasing targets (2) security is not the first concern in the design of internet applications (3) major cyber-attacks have already happened, i.e. Stuxnet worm, Havex, and BlackEnergy 3 and (4) electricity sector is one among most vulnerable sectors. Therefore, the cyber security of electricity grid is of paramount importance and a global issue.
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By Dr. Babu Ram
To read the full paper, click here
Abstract—The objective of this paper is to present new rate design innovations toward improving or replacing the net energy metering and billing associated with the rooftop solar PV systems. New rate design innovations are helpful in enhancing the sustainability of renewable energy based micro grids and utility’s network. The paper is presented in five parts.
Part I being introductory in nature, summarizes the rate design innovations by utilities in the US with regard to net energy metering. Part-II presents analyses about the applicability of Time of Use (TOU) tariff to net energy metered solar and nonsolar
customers in the residential sector. In part III, Welfare Economics of the proposed TOU tariff is presented. Part IV discusses results. Finally, conclusions and recommendations
have been presented in part V of the paper.
It may be noted that the paper is prepared in the context of the US utilities, but the rate design innovations, conclusions and recommendations that have been discussed in the paper are equally applicable to such utilities in Africa and other parts of the world, that are building renewable energy based micro grids.
Index Terms- Net Energy Metering, New Rate Design, Sustainable Micro grids, and Time of Use Pricing
To read the full paper, click here
Prospects of Investing in the Long-Term Debt Securities for Funding Renewable Energy Projects in Emerging Economies
By Dr. Babu Ram
The emerging economies are adopting new and innovative approaches to expand their renewable energy portfolio with the assistance of private sector participation in their projects. The innovations happen in both demand and supply side. The approaches on the supply side are renewable energy portfolio standards (e.g. green certificates), net metering, renewable energy feed-in tariffs, and auctions for procurement of MW / MWh. Renewable Portfolio Standards and net metering are in use in the US and Europe. Renewable Energy Feed in Tariffs are widely used in developing countries. According to IRENA report, 30 developing countries out of 44 countries used auctions as of early 2013.
The experience of emerging economies such as South Africa in the use of procurement auctions is worth the discussion with the objective to understand challenges and opportunities in terms of exploring alternative sources of financing of renewable projects utilizing solar and wind. Finding the alternative funding instruments is imperative because the supply of funds from conventional debt channels namely, commercial banks, is reaching limits or even expected to decline, toward funding renewable energy projects.
The electricity supply in South Africa is dependent on coal and the country is committed to progressively displace the use of coal for power generation. It is investing in clean coal technologies. It has prepared an atlas of carbon storage sites. Its potential for solar energy and wind energy is well documented. Its electricity transmission grid is healthy and is capable of absorbing 5000 MW renewable energy projects without any additional investment.
The renewable energy development began with the announcement of feed in tariff in 2009 but it was abandoned in favor of procurement auctions because the procurement based on the feed in tariff was not in conformity with the national procurement laws. The country launched procurement auctions in favor of feed in tariff in 2011. It has successfully conducted three rounds of auctions to source renewable energy projects under the South African Renewable Energy Independent Power Producer procurement program (REIPPP). In round 1, 28 bidders were qualified to produce 1416 MW of renewable energy. The round 2 generated 19 preferred bidders to supply 1045MW and round 3 the 17 preferred bidders to produce 1470 MW. The three rounds of auctions together contributed to 55% of the targeted RE capacity addition by 2020. The fourth round auction, furthermore, yielded 1121 MW new renewable energy projects capacity additions.
The key outcomes are: the offered unit electricity price has progressively declined from the round 1 to round 3 in regard to wind energy, solar photovoltaic and solar CSP. The round 3 also picked new renewable energy projects, namely a landfill gas-to-power project and a biomass project. Local content in the renewable energy projects has increased; South Africa invested US $10 million to prepare bidding documents, conditions of contract and evaluation of bid which is a big amount for a small Sub-Saharan economy.
The implementation modalities for developing the selected projects are: the renewable energy projects developers sign a PPA with the state utility ESKOM, which guarantees a payment for power generated at an agreed tariff, based on a “take or pay” for at least twenty years. The Department of Energy provides investors a second line of defense and offers recourse to government if ESKOM fails to honor its commitments subscribed in the PPA. These dispensations make the PPA a credible instrument enabling developers to raise funds for project development purposes.
On the basis of these PPAs, selected bidders raise equity (30%) and debt (70%) to implement renewable projects. The resultant preferred bidders of the three rounds have already secured the financial closure status. The debt has been financed from major local commercial banks and equity by institutional and domestic investors. However, Soittec Solar, a company selected for a solar PV project, secured $111 million of debt finance through issuance of a rated bond in 2013. The project was expected to be completed in 2014/15. The bonds have been purchased by South African institutional investors such as insurance companies and pension funds. This shows that the debt financing is possible through renewable energy bonds.
There are two pertinent questions in regard to raising debt in emerging markets: (1) what should we do so that the experience of Soittec is emulated by other companies in emerging economies? (2) What should be done to attract the international institutional investors to purchase long-term debt securities in the emerging economies?
To investors, a bond is a fixed income security. A bond is characterized by an annual interest rate, called coupon and bond duration. For example, coupon rate could be 5% per annum on the par value of a band. The bond issuer pays to investor an yield based on the coupon and face value of the bond. The bonds after issued are listed on the stock market, can be bought and sold by investors. The real bond value fluctuates with macro-economic variables such as rate of inflation and interest rate of economy. If the market interest rate is higher than the coupon, the present value of the bond reduces and investors loose. On the other hand, stable macro-economic conditions such as low interest rate, low inflation and well developed stock markets offer investors a higher yield than assured by coupon interest rate.
The project developers need to study the macro-economic parameters of a country and credibility of the stock markets. It should take the help of noted transaction advisers to develop a bond prospectus for investors. The prospectus defines, among others, coupon, maturity and rating of the bond. The bond needs to be rated by an international rating agency. The bond rating should be an investment grade in order to inspire investors to invest in the bonds. The investors avoid the junk rated bonds. The bond prospectus needs to be approved by the stock market regulator. The project developers need to appoint smart investment banks to market these bonds to institutions investor such as insurance companies and pension funds. The institutional investors try to match duration of their assets and liabilities.
There is no doubt that opportunities are big for investors in renewable energy bonds to be issued by private project developers in emerging economies. However, the international investors view emerging markets purely from the risk perspectives. Such risks as political upheavals, labor strikes, large unemployment level, policy reversal risks, policy paralysis risks and two digit fiscal deficits make the international rating agencies weary and they down grade sovereign bond rating. Downgrade of sovereign bond rating might have impacts on current and future projects due to rising debt service cost. It might lead to increase in the infrastructure service supply cost. Therefore, infrastructure projects must be implemented within the time schedule and budget.
Moreover, there is need to improve the macro-economic policies (a) accelerated economic growth with jobs, (b) stable interest rate, (c) stable exchange rate of national currency with US$ / Euro in view of the expected US Treasury’s tapering of the quantitative easing, (d) prudent fiscal management and (e) monetary policies to control inflation. In the current situation, the international investment in renewable energy bonds is likely to lag behind other sectors, in emerging economies. However, renewable energy bonds could be given some sops such as a tax free status to attract international investment in the long-term debt securities.
The full paper is available on :
Proceedings of the 23rd World Energy Congress 2016, Istanbul, Volume 1, PP 985-1008
By Dr. Babu Ram (Unfolding Energy Board Member)
The cyber-attacks are likely to increase in the electricity grid in the next ten years in the world due to: (1) the internet-connected systems are increasing targets (2) security is not the first concern in the design of internet applications (3) major cyber-attacks have already happened, i.e. Stuxnet worm, Havex, and BlackEnergy 3 and (4) electricity sector is one among most vulnerable sectors. Therefore, the cyber security of electricity grid is of paramount importance and a global issue.
A version of this article appeared on Triple Pundit on September 9, 2016.
By Pari Kasotia
Addressing climate change requires a two-pronged approach. One approach is implementing preventative policies such as the U.S. Environmental Protection Agency’s (EPA) Clean Power Plan, intended to reduce carbon emissions. Other examples of preventative policies include carbon tax or a cap and trade system. A second approach is designing communities that are able to withstand climate change impacts.
To effectively address the risks of climate change, adoption and application of technological breakthroughs that build smart and resilient communities is essential. The clean energy revolution holds significant promise in terms of mitigating climate change impact. The actual transition, however, is a long-term process with many moving parts and one that requires careful planning and consideration. How, then, can countries safeguard and plan against climate related events that continue to threaten livelihoods, economies and health of individuals? Solar combined with storage offers one viable solution.
The 2016 Climate Change Vulnerability Index below points out to countries that are at extreme risks from climate change. African nations such as Chad, Niger, and Central African Republic and parts of Asia such as Bangladesh are particularly vulnerable. Fortunately, these countries possess strong solar PV potential, as measured by the level of solar irradiation, which when combined with storage can significantly increase resiliency of these countries to handle climate change impacts.
While storage is primarily seen as a strategy to integrate variable renewable energy into the grid, solar combined with storage can serve as a resiliency mechanism to prepare communities to handle extreme weather events caused by climate change, and risks to the grid system which are becoming increasingly more pronounced.
A series of projects are already underway in the United States intended to demonstrate the efficacy of utilizing solar plus storage as a resiliency measure. San Francisco’s Solar + Storage for Resiliency program, through funding from the U.S. Department of Energy SunShot Initiative, aims to serve as a national model for integrating solar and storage into the city’s emergency response plans. Similarly, in 2015, Oregon undertook an energy storage demonstration project in collaboration with Eugene Water and Electric Board (EWEB) to create an island system comprised of batteries and solar PV to provide clean, resilient power to three critical facilities. These projects, when completed, will provide a wealth of best practices for other communities to emulate.
High-risk developing countries that are just beginning to plan their mitigation and resiliency strategies are at an inflection point to create a framework to incorporate solar plus storage. This is particularly valuable for communities with massive urban centers, island locations, and regions with weak grid access. Below are some recommendations communities should implement.
According to International Energy Agency (IEA), 17 percent of the world population or 1.2 billion people lack access to electricity. Ninety-five percent of these are located in Sub-Saharan Africa and Asia. Moreover, the same countries are highly vulnerable to climate change impacts. The swiftest way to grant these people access to electricity is through utilization of readily available energy source – the sun. And to protect these communities from climate change impacts, solar plus storage is a promising answer.
A version of this article appeared on Triple Pundit on May 11, 2016.
By Pari Kasotia
On April 22, some 171 countries commemorated Earth Day by signing the Paris Agreement. At the opening ceremony of the United Nations climate talks in Paris, U.N. Secretary-General Ban Ki-moon said: “We are in a race against time. I urge all countries to join the agreement at the national level.”
The commitments to address climate change go back to the 2009 Copenhagen Accord which established the $100 billion Green Climate Fund to help developing countries address and build resiliency to climate change. The United States committed $3 billion in 2014 in addition to commitments from other developed countries. While financial assistance is urgently needed, it is just one side of the coin. The other side – enhancing the soft infrastructure, the know-how and the culture is equally significant to assist developing countries in the transition from high-carbon to low-carbon economies.
The United States makes a great case study for this and has demonstrated over the last years that underscoring the non-financial side can produce significant and measurable results as well.
According to the U.S. Energy Information Administration (EIA), U.S. energy consumption has slowed down. The agency predicts that this consumption will not return to the growth levels seen during the second half of the 20th century. A key point to note here is that household energy consumption is expected to remain relatively flat. Improvements in appliance efficiencies and consumer awareness, hand-in-hand, are driving this trend.
The U.S. is also witnessing “decoupling” of economic growth and energy consumption. According to the U.S. Department of Energy, the U.S. will continue to see an increase in economic growth and population, but its energy consumption will remain steady. Interesting to note, this trend in U.S. energy consumption is driven by advances in energy efficiency, renewable energy and natural gas.
So, what are the key lessons developing countries can derive from the U.S.? The trends mentioned above occurred in the absence of any national policies or mandates. The Clean Power Plan came into existence much later. Rather, it was the state policies and federal/local incentives, along with consumer preferences and changing market dynamics, that helped drive the market. Here are some key takeaways.
Convening delegates from developing countries for workshops and exchange of best practices, focused on building local capacity, can expedite the adoption and implementation of climate-change programs and policies.
Besides sending a clear signal to the market about their desire to reduce their carbon footprints, these companies play a pivotal role in influencing policymakers, competitors and consumers in making sound energy choices. Developing countries must emulate this culture of action, promotion and influence. A significant credit in creating this culture of influence goes to the U.S. media, both mainstream and grassroots, for bringing visibility and highlighting these success stories.
The local media, as well as civil society, in developing countries should be equipped with tools and resources to amplify local success stories emerging from their private sector. This will bring broad awareness and influence how climate change and clean energy issues are perceived and acted upon.
Investing funds to build this volunteer-based, action-oriented capacity — whether it’s at schools and universities, religious institutions, housing associations or even at work centers — will significantly increase awareness among the populations to demand clean energy and subsequently reduce emissions, especially in high-carbon economies.
The U.S. is far from perfect. It still has a lot of room to improve and grow into a society that consumes energy responsibly and sustainably. The above takeaways are examples of what the U.S. is doing right. As world leaders carve out projects via the Green Climate Fund, they will be remiss to ignore the value-add of soft infrastructure and the civil-society capacity in assisting countries’ transition to a low-carbon economy.