Are we Approaching a Hybrid Solar+Storage Future?

| July 22, 2019

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As grid-scale storage continues to grow, most installations are not standalone, but instead are coupled with an adjacent renewable project like solar PV. The wave of hybrid projects is taking the industry by storm - it seems like every week there is a new announcement. However, power grids in most regions have ample room on the grid for more solar, and the price differential between peak evening hours and mid-day hours is not enough to justify storage additions. Only in the most saturated grids (California and Hawaii) is there a risk of overproduction and solar curtailment. Even there, standalone storage (not coupled with a PV project), could alleviate this problem as well as hybrid projects. How well storage can replace gas peakers is a heated debate in PJM, NYISO, and across the industry right now. This is true for standalone storage, which I wrote about last year, and gets even more nuanced for hybrid projects. Because the ITC subsidy requires the storage to be charged by renewable energy, there may not be sufficient state of charge during sustained low solar periods and the solar may be contractually prohibited to charge from the grid.

Spotlight

Solar Electric Power Company

SEPCO Solar Electric Power Company is a worldwide leader in outdoor solar lighting for over 20 years. SEPCO founder, Steve Robbins, invented the first commercial solar street light over 25 years ago. As demonstrated through thousands of projects around the world, SEPCO solar light systems feature rugged commercial-grade construction combined with unparalleled quality, performance, reliability, 25+ year system life expectancy and the best warranty in the business.

OTHER ARTICLES

Artificial Intelligence in the energy sector: opportunities and challenges

Article | March 25, 2020

AI is certainly the talk about the hour nowadays. In high-tech industry, AI is the one with most potential. But before proceeding and discussing further on this exciting technology, we’d like to first understand what AI means-: As power is being generated from more volatile sources like solar and wind, the requirement is that power generation must react intelligently to consumption (and vice versa). With AI, we can evaluate, analyse and control participants connected to each other via these smart grids. With modern day emphasis on climate changes and increasing pressure to reduce CO2 emissions, we must find ways to have most of our power generated from renewable resources. The problem with renewable sources of energy are that they are unpredictable, which makes production of energy periodical and sometimes even chaotic. With renewable sources, there can be power outages or too much power generation which needs to be controlled. Smart storage, also known as Intelligent Energy Storage(IES) can effectively handle these disrupt changes in power supply.

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5 Challenges in Renewable Energy in 2021

Article | April 20, 2021

Energy is an important feature in the economic and political development of a country. In developed nations like the USA, energy expansion has now reached a point where renewable energy sources also play a large part in the production of electricity. To meet the energy demands of the country, most production of renewable energy comes from fossil fuels and other non-renewable energy sources. Around 25% of the world’s energy is generated with renewable energy resources- mainly solar, wind, hydropower, and in some cases, geothermal. It is one of the fastest-growing electricity sources. Renewable energy is collected from resources that are abundantly available in the environment, like the sun or wind. There has been a growing interest in renewable energy production as fossil fuels are depleting. In most parts of the world, renewable energy has become a primary source of energy production. Renewable energy is preferred as they produce fewer greenhouse gases than non-RE sources. There are several other advantages to renewable sources like lower carbon emissions, reduced air pollution, and other socioeconomic benefits. However, unlike non-RE sources, there are challenges in renewable energy like economic, political and regulatory barriers, structural, social, and technical challenges which require advancement in technology, and a heavy investment with a proper understanding of obstacles it faces. Some obstacles are due to technology associated with renewable energy, whereas others are because of policies, marketplace, regulations, and infrastructure. Impact of Covid-19 The Covid-19 pandemic has brought the world to a grinding halt. It has severely impacted individuals and businesses alike, with many of the latter being closed down permanently. Similarly, the pandemic has also impacted the expansion of clean energy systems by forcefully curbing any investments. The technology and adoption of renewables have been making uneven but sure progress. The global pandemic has slowed down this development. According to International Energy Agency, the global share of electricity supply from renewables had reached 28% in 2020 from 26% in 2019, but the growth is expected to slow down further. The total energy supply is set to reduce by 13% from 2019. This substantial decline can be attributed to supply chain disruptions, lockdown, and emerging financial problems. Transport biofuel production and renewable heat consumption are projected to decline due to lower industrial activity. Governments have an opportunity to promote and accelerate the use of clean energy by incentivizing building, technology, and infrastructure across the country. This would be crucial to rebuilding the economy, create jobs, and build efficiency. Capital Costs and Investment The most obvious challenge of widespread adoption of renewables is cost, predominantly infrastructure costs like building and installing solar and wind power plants. Although it is quite cheap to operate and maintain solar and wind power plants, installation becomes more and more expensive. Over the last few years, even though the prices of installation of solar panels has fallen significantly, it remains higher than non-renewables. On average, a 2-kilowatt solar panel system costs $4,159 after tax credits, whereas the capital cost of a gas-fired power plant would cost lesser than that. In the last two years, investment in renewables has increased, but that is only because the investments in fossil fuels have been rapidly falling. Clean energy investments still fall short of what is necessary to convert into a more sustainable future. To ensure continuous investment in sustainable energy, policymakers have to focus on short investment turnaround, focus on rapid environmental gains favoring cleaner energy generation. Power on demand One of the most significant challenges of renewables is the ability to provide power on demand. In the case of solar power, you only get energy during the day and only when it is sunny. As for wind energy, power is generated only when it is windy. There is an intermittent generation of power in renewables which wouldn’t be a problem if there were appropriate energy storage solutions. The biggest test in providing power on demand is storage. Even if homes, businesses, or states install wind energy systems or solar panels, storing the generated energy is still an unsolved issue. Opponents of renewable energy highlight the reliability factor on solar and wind to augment support for coal, gas, and nuclear plants, which provide baseload power. This argument is used by lobbyists to drive out investment into renewables, thus becoming a barrier to widespread adoption of wind and solar energy. Location challenges Renewable energy plants have grids that require a large area of land. It can be unappealing to customers to switch to renewable energy sources as it is conditional depending on the size of the land. Not all states and regions are apt to build solar panels or have wind turbines as they are dependent on the geographical location. For example, building solar panels in California makes more sense than building them in New York as the former has an abundant supply of both sun and land. Renewables operates on what is known as a decentralized model. In a decentralized power plant, small generating stations are spread across a larger area that works collectively to deliver power. In the case of coal, nuclear power, or natural gas, they are highly centralized and depend on fewer high output power plants. Siting Decentralized systems prove to be a problem for siting and transmission of energy created by solar or wind. Siting is needed to move blades or solar panels to large pieces of land. To do so requires to draw up contracts, negotiate, acquire permits, or build community relations; all of this can delay or kill a renewable project even before it begins. Businesses can incur additional charges due to demand and delivery which seems like a significant challenge for them. Utility services apply these charges to recover costs of purchasing energy and maintaining power lines and energy lost in the transmission system. Moving power sources closer to your business will help you avoid such preventable expenses. Transmission The next challenge to overcome in renewables is the transmission of generated electricity. Transmission means the transfer of electricity from where it is generated to where it is consumed. Most transmitters that exist in this day and age are built for coal and other fossil fuels and not renewables. To make things easier for transmission of clean energy, there needs to be a significant infrastructure and technological development, which cost a lot of money. Making the economics work with financing and siting can prove costly for developers and customers alike. Policies and Regulations Unfortunately, the fossil fuel industry is backed by multi-billionaires who wield a considerable amount of political influence. This severely affects the chances of expansion for the renewable industry. Industry experts estimate that the USA spends upwards of $60 billion on subsidies for fossil fuels every year. The taxpayers have helped fund the industry’s research and development, drilling, mining, and generation of electricity. Renewables like wind and solar enjoy much lesser subsidies and political backing. The fossil fuel industry has used its enormous power to spread misinformation about climate change. To increase public interest and investment in renewables, there need to be clear and concise legal procedures and regulatory policies. Having proper regulations in place creates a stable environment for investment and overcome hurdles and can anticipate the revenue streams. Large-scale renewable energy projects require a large amount of capital which is hindered by the failure of proper policies that fail to attract private players. Frequently Asked Questions What is a major challenge with using more renewable energy? Renewable energy is competing with fossil fuels and nuclear technology. Other major challenges include underdeveloped infrastructure and lack of economies of scale. What are the benefits of using renewable energy? Some benefits of using renewable energy are lower energy costs, reduction of emissions, massive positive impact on environment, and marketing opportunities for businesses. Is renewable energy cheaper than fossil fuels? Fossil fuels are subsidized which makes it cheaper at the beginning. However, renewables get cheaper to maintain over the years hence making it cheaper than fossil fuels. What is the cheapest source of renewable energy? Solar PV and on site wind are the cheapest sources of renewable energy sources. { "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [{ "@type": "Question", "name": "What is a major challenge with using more renewable energy?", "acceptedAnswer": { "@type": "Answer", "text": "Renewable energy is competing with fossil fuels and nuclear technology. Other major challenges include underdeveloped infrastructure and lack of economies of scale." } },{ "@type": "Question", "name": "What are the benefits of using renewable energy?", "acceptedAnswer": { "@type": "Answer", "text": "Some benefits of using renewable energy are lower energy costs, reduction of emissions, massive positive impact on environment, and marketing opportunities for businesses." } },{ "@type": "Question", "name": "Is renewable energy cheaper than fossil fuels?", "acceptedAnswer": { "@type": "Answer", "text": "Fossil fuels are subsidized which makes it cheaper at the beginning. However, renewables get cheaper to maintain over the years hence making it cheaper than fossil fuels." } }] }

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These solar-charged electric vehicles could change the world

Article | March 25, 2020

With people working from home and generally staying in spring 2020, publications around the world have reported on a significant decrease in air pollution. Wouldn't it be great if we could keep emissions low, even after the threat of Covid-19 has dissipated? One company is trying to make that happen. Earlier this week, The New York Times reported that traffic and air pollution have plummeted as cities shut down due to the coronavirus. While there are no silver-linings to the COVID-19 pandemic, our response to this crisis shows that we are capable of abrupt changes when the situation necessitates them. Perhaps we can even reverse climate change. A key factor in bringing this change will be altering the way we commute. One company, Aptera Motors, is trying to make this happen with solar-charged electric vehicles.

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Toyota used AI to supercharge EV battery development and saved years of effort

Article | February 28, 2020

Scientists and researchers around the world are increasingly turning to Artificial Intelligence (AI)and so called Robo-Scientists to help them discover everything from new anti-biotics and drugs, through to new spray-on solar panel materials and vaccines, so it shouldn’t come as much of a surprise that AI is now being used to help develop new battery tech. “In battery testing, you have to try a massive number of things, because the performance you get will vary drastically,” said Ermon, an assistant professor of computer science at MIT, referring to how scientists traditionally hunt for new battery breakthroughs, and who led the new project to use AI to help them develop new promising batteries for Electric Vehicles.

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Spotlight

Solar Electric Power Company

SEPCO Solar Electric Power Company is a worldwide leader in outdoor solar lighting for over 20 years. SEPCO founder, Steve Robbins, invented the first commercial solar street light over 25 years ago. As demonstrated through thousands of projects around the world, SEPCO solar light systems feature rugged commercial-grade construction combined with unparalleled quality, performance, reliability, 25+ year system life expectancy and the best warranty in the business.

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