Sustainability, resources and enterprise skills
Domain 4: Sustainability, resources and enterprise skills
This domain tests whether you can judge a farm or food business against environmental, economic and social criteria, and whether you can turn an idea into a realistic enterprise plan. It links resource use, compliance and innovation to practical decisions.
Core rules and concepts
- Sustainability has three pillars: economic viability, environmental protection and social equity. A practice is not sustainable if it fails any one over time.
- Resource efficiency means producing more value with less water, energy, nutrients, soil disturbance and waste; it also means reducing pollution and protecting biodiversity.
- Externalities are costs or benefits not reflected in market prices, such as nitrate leaching or landscape value; regulation, taxes, grants and standards can internalise them.
- Life-cycle thinking covers inputs, production, processing, transport, packaging and waste; shifting a problem from one stage to another is not a solution.
- Enterprise skills include spotting an opportunity, researching demand, designing a business model, budgeting, assessing risk, complying with law and monitoring results.
- Compliance is a minimum: water, nitrates, pesticides, waste, food hygiene, health and safety and animal welfare.
Worked example
A 10 kWp solar photovoltaic system costs €12,000 and generates 15,000 kWh per year. If 80% is used on site, replacing electricity at €0.20/kWh, and 20% is exported at €0.06/kWh, annual benefit = (12,000 × €0.20) + (3,000 × €0.06) = €2,400 + €180 = €2,580. Simple payback = €12,000 ÷ €2,580 = 4.65 years. If all electricity were exported, benefit would be 15,000 × €0.06 = €900 and payback 13.3 years. The reasoning shows that self-consumption, maintenance, degradation and inverter replacement all affect the investment case.
Traps
- Calling a practice sustainable because it is natural or traditional, without measuring outcomes.
- Ignoring maintenance, degradation and opportunity cost in payback.
- Double counting a saving as both avoided cost and income.
- Treating a grant as profit rather than as a reduction in capital cost.
- Assuming compliance with one regulation makes the whole business sustainable.