Solar Panels for Milking Parlours

Milking parlours present one of the strongest cases for solar in dairy farming. The alignment between milking schedules and solar generation hours means dairy farms achieve some of the highest self-consumption rates of any agricultural operation, driving rapid payback and substantial long-term savings.

Why Milking Parlours Excel for Solar

The daily rhythm of dairy farming creates a near-perfect match with solar generation patterns, delivering higher self-consumption rates than almost any other commercial application.

Dairy Electricity Demand and Solar Alignment

Dairy operations have a distinctive daily energy profile that makes solar particularly effective. Morning and afternoon milking create two demand peaks that bookend the solar generation window.

Solar + Ice Bank Systems

Ice bank cooling is the most solar-compatible milk cooling technology. Here is how the combination works:

System Sizing by Herd Size

Solar system size scales with herd size and milking technology. Here are typical recommendations for UK dairy operations.

Estimates include milking parlour, dairy room, and associated buildings. Robotic milking systems require 25-40% larger systems. Get a personalised estimate.

Milking Parlour Solar FAQs

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Related Farm Building Solar Pages

Explore solar solutions for other agricultural building types.

Highlights

• 4:00-7:00am
• Morning milking
• Vacuum pumps, milk transfer, initial cooling cycle. Solar begins contributing from 6-7am in summer, 8am in winter.
• 7:00am-2:00pm
• Post-milking & maintenance
• CIP wash cycles, hot water heating, parlour cleaning. Peak solar generation covers this entire period year-round.
• 2:00-5:00pm
• Afternoon milking
• Second milking session coincides with strong solar generation. Cooling systems run during maximum panel output.
• 5:00-10:00pm
• Evening operations
• Final cooling cycles, tank chilling to 4C. Battery storage extends solar contribution into this critical period.

• Solar panels generate electricity during peak sunlight hours (10am-3pm)
• Ice bank system uses this electricity to build ice reserves during daytime
• Stored ice cools milk during afternoon and evening milking sessions
• Reduces peak electricity demand by 60-70% versus direct expansion cooling
• Battery storage handles overnight cooling needs for continuous operation

• 80-120 cows
• 20-30kW
• £16,000-£33,000
• £5,000-£8,000/yr
• 150-250 cows
• 40-60kW
• £32,000-£60,000
• £10,000-£18,000/yr
• 300-500 cows
• 70-120kW
• £56,000-£120,000
• £20,000-£35,000/yr
• 500+ cows
• 120-200kW
• £96,000-£200,000
• £35,000-£60,000/yr