CROATIAN CENTER of RENEWABLE ENERGY SOURCES: Stop Confusing Renewable with Sustainable

Tuesday, September 16, 2025

Stop Confusing Renewable with Sustainable

Renewable Energy vs Sustainable Energy

Examples of renewable energy sources include:

Biomass: Organic material that is burned or converted to liquid or gaseous form. Biomass from trees was the leading source of energy in the United States before the mass adoption of fossil fuels. Modern examples of biomass include ethanol and biodiesel, which are collectively referred to as biofuels. However, their sustainability depends on production lifecycle factors like land use, water consumption, and emissions. Advances in second-generation biofuels, which use non-food crops and agricultural waste, aim to address these concerns, reducing competition for land and improving overall carbon efficiency.

Geothermal Energy: Heat produced by decaying radioactive particles found deep within the earth. Next-generation geothermal technologies such as superhot rock geothermal are being developed to significantly increase capacity and efficiency, with the potential to meet a larger share of global electricity demand by 2050.

Hydropower: While hydropower used to be the largest source of renewable electricity due to its reliability, solar has now surpassed it in installed capacity. Hydropower remains a major contributor to global renewable generation but faces growth challenges due to environmental concerns and site limitations.

Solar: Solar photovoltaic (PV) technology converts sunlight directly into electricity and has been the fastest-growing renewable energy source in recent years. Solar’s rapid expansion7 is driven by improved affordability, viability, and demand, but deployment can require significant land area and effective storage solutions to address intermittency.

Wind: Wind turbines harness wind’s natural kinetic energy to generate electricity. Wind power continues to grow globally, though development faces challenges in some regions due to permit issues and grid connection challenges. Wind is often integrated with other renewables for a more stable energy supply.

Sustainable energy sources can maintain current operations without jeopardizing the energy needs or climate of future generations. The most popular sources of sustainable energy, including wind, solar and hydropower, are also renewable.

Biofuel is a unique form of renewable energy, as its consumption emits climate-affecting greenhouse gasses, and growing the original plant product uses up other environmental resources. However, biofuel remains a major part of the green revolution.

The key challenge with biofuel is finding ways to maximize energy output while minimizing the impact of sourcing biomass and burning the fuel.

Even with resources that are both renewable and sustainable, the need for storage, transmission infrastructure, and equitable grid access can present hurdles.

While new technologies, such as grid-scale battery storage and smart distribution networks, are helping bridge these gaps and making renewable energy more accessible across regions, there is much more work to do.

Answering these and other questions requires the advanced critical thinking skills and social, political and economic awareness that a master’s degree in sustainable energy can provide. It will take more to support long-term adoption of renewable and sustainable resources than technical knowledge alone.

Energy leaders must understand the nuances between renewable and sustainable energy and use them accurately in legislation.

Not only will the precise use of language benefit consumers, allowing them to understand the implications of their energy choices, but it will also help officials ensure their policies accurately reflect their objectives.

Stop Confusing Renewable with Sustainable—Here’s the 3‑Min Truth: quick, clear breakdown of renewable energy vs sustainable energy — what’s the difference, why it matters for policy, and how technologies like solar, wind, hydropower, geothermal and biofuels fit in. Learn about lifecycle impacts, storage and grid challenges, and why precise language matters for climate action and legislation. Perfect for students, policymakers, energy professionals, and curious viewers who want a smarter take on clean energy. If this helped, please like and share to spread the clarity.

#RenewableEnergy #SustainableEnergy #Solar #Wind #Biofuel #EnergyPolicy

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OUTLINE:

00:00:00

Introduction and Core Concepts

00:00:28

Energy Source Deep Dive

00:00:51

Wind Through Policy Solutions

Zeljko Serdar,

Croatian Center of Renewable Energy Sources.

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Zeljko Serdar

	Meet a fearless child, a revolutionary teen, an irreverent youth, father of 2, entrepreneur, blogger, investor, humanitarian, president and CEO at CCRES Dedicated to advancing energy efficiency as a means of promoting both economic prosperity and environmental protection.Working to harvest this knowledge. The pioneering experience of corporations, governments and financiers will be captured, analyzed and made available for others to learn from. HRVATSKI CENTAR OBNOVLJIVIH IZVORA ENERGIJE
	HCOIE

	Edukacija i savjetovanje o korištenju obnovljivih izvora energije organiziranjem tečajeva, radionica, tribina, seminara, kongresa i drugih skupova te putem medija; suradnja s domaćim i međunarodnim institucijama u svezi obnovljenih izvora energije; povezivanje gospodarstvenika, znanstveno-istraživačkih institucija, lokalnih zajednica, tijela državne uprave i ostalih subjekata na projektima koji koriste obnovljive izvore energije.

Project CCRES AQUAPONICS

Course Overview: Whether you are a beginner, a backyard hobbyist, a homesteader or a skilled professional wanting to start a career in Aquaponics this course has something to offer. This course is intended to provide people with the best all inclusive training, hands-on experience and cutting edge methods of Permaculture based Aquaponics available anywhere! Wether you want to grow food for you and your family, a small business or a fully commercial operation this course will be sure to give you the tools, information and experience you will need to be successful in what ever Aquaponic endeavor you are interested in. At a time of global climate change, depletion of resources, pollution of water and huge losses of top soil worldwide, there has never been a more important time to learn about CCRES Aquaponics!“Imagine a technology that produces healthy organic food, clean water, and renewable energy all at the same time. We call it CCRES AQUAPONICS,”

PROJECT CCRES SPIRULINA

The ongoing support from the private investment community speaks to how strongly they believe in the development of Green Crude as an alternative fuel resource, especially ability to commercialize it,” CCRES. Few consider seaweeds as a viable source of energy and protein for terrestrial animals (at least until their cost becomes more attractive). Macro-algae have been shown, however, to possess several functional properties, including those of a functional fiber, with immune-stimulating and prebiotic effects. Today, marine algal extracts are used as an additive in pig and poultry diets with promising results. Furthermore, micro-algae have been shown to contain high levels of beneficial lipids that can be used in layer and sow diets as a source of omega-3 fatty acids. Finally, both types of algae are used as an active component in clay-based anti-mycotoxin agents. For example, the treatment of clay with a macro-algal extract has been shown to increase the reactive surface of clay up to eight times. Croatian Center of Renewable Energy Sources (CCRES) offers several solutions that support the nutritional part of the production system. CCRES solutions combine algae feed additive products with their services, e.g. gut quality scoring, product application systems and customised dosing advice.

PROJECT CCRES ALGAE BIOFUEL

Given the right conditions, algae can double its volume overnight. Microalgae are the earth’s most productive plants –– 10 to 15 times more prolific in biomass than the fastest growing land plant exploited for biofuel production. While soy produces some 50 gallons of oil per acre per year; canola, 150 gallons; and palm, 650 gallons, algae can produce up to 15,000 gallons per acre per year. In addition, up to 50 percent (or more) of algae biomass (dry weight) is comprised of oil, whereas oil-palm trees—currently the most efficient large-scale source of feedstock oil to make biofuels—yield approximately 20 percent of their weight in oil.

CCRES Research facility, Sveti Rok, Croatia

Project Type Rural, Intentional Communities, Community, Demonstration, Educational Project Summary At the CCRES Research Facility, we are working with farmers who are converting their working farmland into agroforestry operations. The CCRES Program addresses the need to better understand and implement agroforestry practices on a commercial scale. As these operations grow, so too will the need for industrial infrastructure and support. Project Description The apprentice roles at CCRES Research facility, in Sveti Rok, Croatia are suited to folks who are dedicating their lives to a career in regenerative agriculture. Whilst this farm is a bustling hub for learning and practice, we expect high standards in both work ethic and your ability to work as a beneficial team member. We work, live, learn and play together in quite close quarters during the season, and your attitude and aptitude are the most important qualities behind getting the most from this experience. People that get the most from their time with us tend to have the “get it done” attitude, are self-starting, communicative, teachable, positive solutions focused, dependable and take-responsibility for what they are managing. We are looking for very pragmatic folks that are good with their hands and tools, who are situationally aware and ready to get their hands dirty wherever needed on the farm. Environmental impact Less human influence means natural processes have a chance to help improve the natural environment and restore nature. Wildlife species can come back and experience less conflict with humans, and food chains can restore. Dynamic, mosaic landscapes can develop driven by large herbivores and large carnivores, supporting species of a wide range of open/semi-open habitats. Socio-economic impact New businesses can be developed based on wilder landscapes and wildlife comeback, offering new and different products. Provision of new job and income opportunities. Social coherence and local society can be enhanced if new local businesses build networks and generate multiplier effects. Reduced dependency on subsidies. Cultural impact Younger people and families returning to the countryside looking for new opportunities, bringing new life into rural communities. Local/regional branding of areas and products providing new identities and local pride that are nature/wildlife related. Cultural heritage and traditional skills reinvigorated and in a different setting.

Interview with Mr Zeljko Serdar, CCRES

PROGRAM BENEFITS FOR PROTÉGÉ A Protégé receives a wide range of business development help from their Mentor, including: Technical, financial management, and developmental assistance to gain the knowledge, skills, and capabilities Advice and mentorship on program and project management, information technology, business equipment, and workspaces; Long-term relationships with small and/or large businesses to form teaming arrangements and/or joint ventures. PROGRAM BENEFITS FOR MENTOR There are many benefits for a Mentor helping a Protégé develop their business, including: Helping small businesses and minority institutions of higher learning expand their capacity through developmental and technical assistance; Utilizing the unique/specialized skills of the Protégé and shortening the learning curve of bringing on a new subcontractor; Identifying subcontractors and streamlining the procurement process. page 62-63

CROATIAN CENTER of RENEWABLE ENERGY SOURCES

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Tuesday, September 16, 2025

Stop Confusing Renewable with Sustainable

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