When we think of renewable energy, solar and wind are usually what come to mind. But as the need for cleaner energy grows, there’s a new lineup of promising alternatives gaining attention. Technologies like geothermal, ocean energy, and green hydrogen are expanding the possibilities, especially in places where solar and wind might not be the best fit. Let’s take a closer look at these innovative sources and see how they’re helping to shape a sustainable future.

Geothermal Energy 

Imagine tapping directly into the Earth’s natural warmth to power homes and businesses—day or night, no matter the weather. That’s the idea behind geothermal energy. Countries like Iceland and New Zealand have been using it for years, and it’s proven to be both reliable and eco-friendly.

Geothermal energy plants take up less land than sprawling solar or wind farms, and newer tech, like Enhanced Geothermal Systems (EGS), is making geothermal possible in more places than ever before. For shareholders with an ESG mindset, geothermal offers a steady and sustainable option with long-term potential.

Ormat Technologies, a U.S.-based company, is a major player in geothermal energy with projects around the world. Publicly traded and specializing in both geothermal power generation and energy storage, Ormat provides stable renewable power and is making geothermal more accessible globally.

Ocean Energy

Coastal areas with steady waves and predictable tides are ideal for ocean energy, which harnesses the natural movement of water to generate electricity. This form of energy isn’t just powerful—it’s also highly reliable. Tidal cycles, for example, follow predictable patterns, making ocean energy a steady source that can complement more unpredictable options like solar and wind.

Even though installing and maintaining ocean energy systems in the water has its challenges, the potential payoff is huge. Ocean energy requires minimal land, operates offshore, and offers a more consistent source of energy than many other renewables. This innovation is an exciting area to watch for both ESG and non-ESG focused investors.

SAE Renewables, formerly known as Atlantis Resources, is pioneering tidal power with its MeyGen project in Scotland, one of the world’s largest. Listed on the London Stock Exchange, Atlantis is harnessing predictable tidal currents to generate consistent, clean energy.

Green Hydrogen

If there’s one energy source that’s incredibly versatile, it’s green hydrogen. Produced by splitting water molecules using renewable energy, green hydrogen is gaining attention as a cleaner fuel for everything from cars and trucks to heavy industry.

Green hydrogen is a top choice for energy storage, transportation, and industrial processes that require high temperatures. And unlike fossil fuels, it doesn’t release carbon—when it burns, the only byproduct is water vapor. Countries around the world are starting to invest heavily in hydrogen infrastructure, which is making this a popular option for ESG-minded investors looking toward the future.

A prime company in this sector of research is Plug Power. This organization leads in green hydrogen production and fuel cells, providing clean energy for industries like transport and manufacturing. Plug Power’s partnerships with Amazon and Walmart highlight its expanding role in green hydrogen markets.

What’s Next for Renewable Energy?

These new energy sources come with challenges, from high startup costs to the need for specific infrastructure. Geothermal and ocean energy projects require significant investment, and green hydrogen production is still working out cost barriers. However, as more companies and governments get on board, the path to wider use and lower costs is becoming clearer. By adding geothermal, ocean, and hydrogen energy to the mix, we’re building a more flexible and dependable grid that isn’t reliant on any single energy source.

For ESG-focused investors, these emerging technologies provide the opportunity to back a future that’s not just cleaner, but also more balanced. Solar and wind are essential, but with geothermal, ocean energy, and hydrogen joining the mix, we’re taking real steps toward a reliable and resilient energy system.

For more information on renewable energy, sustainable investing and climate change, stay tuned to our blog for updates and insights.

And help us build a more sustainable and prosperous world through responsible investment practices by becoming a member of the Advance ESG community. It’s free to join and there are no future financial obligations. Together, we can make a difference in safeguarding our planet for future generations.