Case Studies by Harvest Solar: Achieving Energy Savings & Independence

Enhancing Greenhouse Efficiency Through Solar at Four Star Greenhouse

Written by Harvest Solar | Jun 11, 2025 5:34:25 PM

Discover how Four Star Greenhouse is revolutionizing greenhouse efficiency with solar energy, saving costs and promoting sustainability.

Access the Full Case Study Here

The Growing Demand for Sustainable Energy Solutions in Greenhouses

In today's world, the demand for sustainable energy solutions is more pressing than ever. Greenhouses, with their high energy requirements for heating, cooling, and lighting, are at the forefront of this movement. As energy costs continue to rise and environmental concerns become more pronounced, greenhouse operators are seeking innovative ways to enhance operational efficiency.

Embracing renewable energy sources like solar power not only addresses these concerns but also provides a reliable, cost-effective alternative to traditional energy sources. By harnessing the power of the sun, greenhouses can significantly cut their energy costs while contributing to a more sustainable future.

Four Star Greenhouse: A Pioneer in Solar Energy Adoption

Four Star Greenhouse, a family-owned and operated business in Carleton, MI, has been a leader in plant growth for over 40 years. Spanning nearly 30 acres of greenhouses, they have consistently sought ways to improve efficiency and sustainability in their operations. Recognizing the need for an alternative energy solution that could support their growth and reduce long-term costs, they turned to solar energy.

Their commitment to innovation and sustainability led them to implement two ground-mounted solar arrays with a combined capacity of 398kW. This initiative not only aligns with their mission to help customers save money and boost profits but also positions them as pioneers in the adoption of renewable energy within the greenhouse industry.

The Impact of Solar Energy on Operational Costs

The implementation of solar energy at Four Star Greenhouse has had a profound impact on their operational costs. With the significant energy demands of greenhouse heating, cooling, and lighting, solar energy has proven to be an ideal solution. The two ground-mounted solar arrays generate approximately 555,602MWh per year, resulting in an impressive $74,784 in annual cost savings.

Over a 30-year period, the projected savings on utility bills amount to $4,558,642. Additionally, the inclusion of a 30% Federal Investment Tax Credit and the awarding of the USDA REAP Grant have reduced the return on investment to approximately 2.3 years, making the financial benefits of this initiative even more compelling.

Environmental Benefits of Solar Energy for Greenhouses

Beyond the significant cost savings, solar energy offers substantial environmental benefits for greenhouses. The solar arrays at Four Star Greenhouse are estimated to offset CO2 emissions equivalent to those produced by burning 11,950,270 pounds of coal. This reduction in greenhouse gas emissions contributes to a cleaner, healthier environment.

By integrating solar energy, Four Star Greenhouse is enhancing their operational efficiency while actively promoting environmental stewardship. This commitment to sustainability resonates with their customers and sets a positive example for other greenhouse operators to follow.

Partnering with Harvest Solar for a Sustainable Future

The successful implementation of solar energy at Four Star Greenhouse was made possible through their partnership with Harvest Solar. Recognizing the need for a trusted and experienced partner, they connected with Ken Zebarah at Harvest Solar to explore the potential of a solar energy project. Ken recommended a combined 398kW for the two ground-mounted solar arrays, designed to power their operations and boost profitability.

Harvest Solar's proven expertise in delivering reliable, efficient renewable energy solutions made them the ideal partner for this green initiative. Their commitment to quality and tailored customer service ensured the success of the project, enabling Four Star Greenhouse to continue serving their communities and fulfill their dream of running a successful, family-owned greenhouse.

Click to View the Full Case Study