As of my last update, there have been no reports of Kenya partnering with Marathon Digital Holdings to monetize the country's underused energy resources for cryptocurrency mining. However, the concept of utilizing excess or underutilized energy sources for cryptocurrency mining is becoming increasingly popular in regions with abundant renewable energy sources.

If such a partnership were to occur, there could be several potential benefits:

1. **Monetization of Underutilized Energy**: By partnering with Marathon Digital Holdings or other cryptocurrency mining companies, Kenya could leverage its excess energy capacity, especially from renewable sources like solar, geothermal, or wind, to generate revenue through cryptocurrency mining.

2. **Economic Opportunities**: Cryptocurrency mining operations could bring new economic opportunities to Kenya, including job creation, investment inflow, and potential revenue streams from mining activities.

3. **Environmental Sustainability**: Utilizing renewable energy sources for cryptocurrency mining could contribute to Kenya's sustainability goals and reduce reliance on fossil fuels, leading to a more environmentally friendly approach to mining activities.

4. **Technological Innovation**: Collaborating with cryptocurrency mining companies could foster technological innovation, knowledge exchange, and the development of new solutions in the energy and blockchain sectors.

It's worth noting that cryptocurrency mining can be energy-intensive and may have implications for local energy markets, environmental conservation, and regulatory considerations. Therefore, any partnership between Kenya and Marathon Digital Holdings or similar entities would likely involve careful planning, stakeholder engagement, and regulatory frameworks to ensure the sustainability and benefits of such initiatives.

As this information is subject to change, it's recommended to refer to the latest news sources and official announcements for the most up-to-date information on any potential partnerships between Kenya and Marathon Digital Holdings for energy monetization through cryptocurrency mining.