Scope and objective

Regenerative viticulture is increasingly promoted for its potential to improve soil health, biodiversity, and resilience to climate extremes. However, its adoption depends not only on the environmental benefits but also on whether growers can justify the transition economically^1 2 3.

The study addressed this gap by quantifying the key costs and revenue trade-offs between regenerative agriculture and conventional viticulture across four Sonoma County vineyards. This study is valuable for its comprehensive cost-benefit analysis of local commercial vineyards, offering a practical framework to discuss transition costs, indirect benefits, and the financial significance of maintaining yield.

Study approach

The economic comparison was conducted across four Sonoma County vineyards representing different cultivars (i.e., Pinot Noir, Chardonnay, and Cabernet Sauvignon), vine ages, planting densities, and vineyard layouts. Conventional management included alternate tillage, herbicides, and mowing, whereas the regenerative scenario combined no-till alley management, annual compost application, a sheep forage cover crop mix, and two sheep grazing events per year.

The analysis used data from vineyard manager interviews, company records, UC Davis cost studies⁴, and published literature to estimate establishment and operating costs, revenues, and selected indirect benefits over a 30-year vineyard lifespan. Economic performance was assessed using net present value with a 2.5 % discount rate, and the study also compared outsourced regenerative services with in-house composting and livestock integration. To capture uncertainties around yield and price changes during a regenerative transition, scenarios ranging from optimistic to pessimistic were analyzed, with yield variations up to -40 % and price variations of 20 %⁵.

Main findings

The main finding is that regenerative viticulture can provide comparable profitability to conventional management under Sonoma conditions if yields are similar between systems. Assuming no long-term yield difference between systems, regenerative management averaged about 5 % lower in net present value (NPV) across the four vineyards, with single vineyard differences ranging from 1.9 % to 8.4 % (Table 1).

Establishment costs were broadly similar between systems, although regenerative scenarios were slightly lower because less tillage and mowing equipment was required. Annual operating costs were slightly higher under regenerative management, mainly because compost and sheep integration added recurring costs that exceeded direct savings from reduced mowing, tillage, and herbicide use.

According to the annual operating cost distribution, most costs are from general labor, particularly canopy management. Regenerative practices accounted for a small share of costs (7-8 %; see Figure 1). The transition is less about shifting costs and more about integrating regenerative practices into an already labor-intensive system.

The analysis also showed that indirect benefits helped reduce the gap between systems. Benefits such as nutrient recycling, erosion control, and weed management reduced the annual cost difference between regenerative and conventional systems, despite accounting for only a small portion of the overall returns^6 7 8.

Relevance for growers

The paper does not suggest that regenerative viticulture is unprofitable. Instead, it shows that regenerative systems can be economically viable when integration is tailored to site conditions, yields are maintained during and after the transition, and price premiums for regeneratively grown grapes are achieved. This is reinforced by the sensitivity analysis. In optimistic scenarios, moderate yield losses (-10 %) might be offset by higher grape prices (+20 %). However, greater yield declines cause regenerative outcomes to fall below the conventional baseline, emphasizing that successfully aligning regenerative practices with site conditions to maintain yields and reduce transition losses is key to their economic viability.

Another relevant finding concerns the management strategy. Despite its up-front costs, in-house regenerative implementation outperformed outsourced services because it enabled growers to capture more value from compost production, waste reuse, and sheep integration (e.g., meat production). Outsourcing was easier to operate but less profitable over the long term. However, outsourcing can be used as a first step to gain skills and determine what fits best in the vineyard, with in-house implementation later.

Limitations

The results should be interpreted as site-specific rather than general. The four vineyards differed in cultivar, age, density, and productivity, and the study shows that these variables strongly influence economic performance under both conventional and regenerative management¹⁰ (Table 2).

The work also highlights a broader issue in vineyard sustainability assessments: several benefits of regenerative systems are real but difficult to fully quantify economically. Improvements in soil health, resilience, biodiversity, and ecosystem functioning may matter substantially in practice, yet they remain only partially captured in standard vineyard farm budget models^11 12.

Conclusions

Under the conditions evaluated in Sonoma County, regenerative viticulture was financially comparable to conventional management over a 30-year horizon, particularly when yields were maintained. While regenerative practices can be economically viable, their success depends on site-specific design, strategic implementation, and a transition approach that prevents grape yield losses or captures additional price value in grapes.

For growers, the key takeaway is that regenerative viticulture can be a viable long-term management strategy when ecological benefits, operational efficiency, and market outcomes are economically aligned. For researchers and advisors, the study provides a foundation for future research on yield transition responses, grape value, labor demands, and the valuation of ecosystem services in vineyard systems.

Acknowledgments: This technical review is based on the article published in the American Journal of Enology and Viticulture by Herrera, Bruno, Steenwerth, Everson, and Lazcano. The original study acknowledged support from the California Department of Food and Agriculture Specialty Crop Block Grant Program, the Foundation for Food and Agriculture Research Seeding Solutions Program, USDA-ARS, and Jackson Family Wines for vineyard access and data support.