Nottingham Estate, located along the banks of the Limpopo River in Beit Bridge, Zimbabwe, is a citrus operation with a deep-rooted family legacy and a clear focus on long-term resilience. Established in 1953, the estate has evolved through decades of change, adapting to environmental challenges, water scarcity, and shifting energy realities.

What began as a cash cropping and cattle operation has grown into a large-scale citrus estate powered by one of the most significant privately owned solar photovoltaic (PV) installations in the region.

A Legacy Built on Adaptation

When Bennie Knott arrived at Nottingham Estate in 1953, the Beit Bridge district was described by the Chronicle Newspaper as a desert area “fit for baboons, and baboons only.” Despite harsh conditions and frequent droughts, Bennie began farming with cash crops and cattle. Over time, cattle farming was phased out as drought conditions persisted, and the focus shifted toward citrus production.

In the early years, irrigation relied entirely on diesel pumps due to the absence of electricity. Grid electricity only reached the estate in the early 1970s. Cotton farming was later phased out as the estate adopted biological control methods for citrus production.

Following Bennie’s passing in 1975, his sons Keith and Harley continued the citrus operation. Today, the third generation Andrew and Byron Knottmanage the estate, building on decades of experience while preparing the farm for future challenges.

Water Infrastructure to Support Growth

Water has always been a limiting factor in the region. To secure reliable irrigation, Nottingham Estate constructed Mushiloshokwe Dam in 1995, followed by the Mpande Dam in 2017. These investments ensured sufficient water storage to support expanding citrus operations and reduce reliance on unpredictable rainfall.

Responding to Energy Challenges

As electricity supply in Zimbabwe became increasingly unreliable and energy costs continued to rise, Nottingham Estate embarked on a multi-phase energy security strategy.

In January 2016, construction began on the Nottingham Estate Solar Power Station. Phase 3 of this strategy involved the deployment of a large-scale grid-tied solar PV system designed to stabilise power supply and reduce operating costs.

Solar PV System Overview

The solar installation consists of a 4.5MWp solar photovoltaic system integrated with the national utility (ZESA) and existing diesel generators. The system was designed to provide redundancy, flexibility, and long-term scalability.

System components include:

  • 4.5MWp total system size
  • 8,370 Jinko Solar 575W panels (JKM575N-72HL4)
  • 41 SMA STP 110-60 CORE2 grid-tied inverters
  • Custom aluminium ground-mount structure with a 60-degree East–West orientation

The unique ground-mount structure was designed by Julian Scales, lead engineer on the project, to maximise energy generation throughout the day and improve overall system yield.

Design, Monitoring, and Scalability

Prior to implementation, a comprehensive energy audit was conducted to analyse seasonal electricity usage and inform system design. The system includes remote monitoring, allowing both the consulting engineer and estate management to track performance and optimise consumption in real time.

The installation was developed and implemented by Scales Associates in partnership with Bigfisch Projects and was designed with future expansion in mind as energy requirements evolve.

Measurable Financial Impact

A review of the electricity bill in October 2025 showed a net export of 144.3MWh. This translates into monthly savings exceeding USD 30,000, while also building a reserve of exported energy.

This surplus power is strategically used to offset electricity consumption across other parts of the estate. In addition to citrus operations, lodges and hospitality facilities on the farm now benefit from the solar installation, with excess generation from the citrus section offsetting energy usage in these areas.

What’s Next: Battery Storage

As the next phase of the energy strategy, Nottingham Estate is considering the introduction of battery storage. This would further improve site resilience, reduce diesel generator usage, and strengthen long-term energy cost control.

The Value of Solar Energy for Citrus Farming

Solar energy offers practical advantages for citrus farming, particularly in regions with high energy costs and unreliable grid supply.

Economic Benefits

  • Reduced reliance on expensive diesel and grid electricity
  • Predictable and stable energy costs
  • Ability to export excess power and offset usage elsewhere
  • Improved long-term financial resilience

Operational Benefits

  • Reliable power for irrigation, cold storage, and packhouses
  • Improved water management through consistent energy supply
  • Support for essential infrastructure and future electrification
  • Suitability for remote farming locations

Environmental and Sustainability Benefits

  • Reduced carbon footprint through renewable energy
  • Improved sustainability credentials for export markets
  • More efficient and responsible water use

A Future-Focused Estate

By investing in solar energy and integrated infrastructure, Nottingham Estate has positioned itself for long-term operational stability. The combination of water security, energy resilience, and scalable technology ensures the estate can continue to grow while managing costs and reducing exposure to external supply disruptions.

This project reflects a practical, forward-looking approach to farming one rooted in experience, innovation, and long-term planning.

Ever heard of “wasted” electricity? That’s what a poor Power Factor can cause. Improving it can unlock significant savings and efficiency gains for your business. The excess current caused by a poor power factor generates extra heat in your electrical systems. This thermal stress can damage and shorten the lifespan of critical and expensive equipment like motors, transformers, and switchgear.

You could be paying for electricity you’re not even using!

A low power factor means your electrical system is drawing more current than it needs to do the actual work. Eskom often penalize businesses for this inefficiency with higher demand charges on their electricity bills. Fact is, correcting your power factor can directly reduce you costs, leading to immediate and substantial monthly savings. An energy audit pinpoints exactly how much you could save.

A poor power factor reduces your building’s electrical capacity

Think of it like a clogged pipe. Inefficient current flow from a low power factor “clogs” your electrical system, meaning your transformers and cables can’t handle their full potential load. The fact is, by implementing power factor correction, you can “unclog” the system, freeing up capacity.

The fact is, by implementing power factor correction, you can “unclog” the system, freeing up capacity. This can help you avoid or postpone expensive infrastructure upgrades when adding new equipment.

Is your power factor costing you? Don’t guess, let’s measure! Our energy audit(R5000 incl vat) includes a detailed power factor analysis. We’ll identify inefficiencies and help you take steps to fix them.

South Africa’s unique energy challenges—from load shedding to rising electricity tariffs—have made renewable energy a necessity rather than a luxury for businesses. However, the energy requirements of a manufacturing plant differ vastly from those of a game lodge. A one-size-fits-all solar solution simply doesn’t work. Businesses require tailored solar solutions that align with their operational needs, industry demands, and growth plans. At Bigfisch Projects, we specialize in creating customized solar systems that empower businesses to thrive in an unpredictable energy landscape.

Why Tailored Solar Solutions Matter

Every industry has unique energy demands that must be met to ensure efficiency and sustainability. A customized solar solution considers factors like operational hours, energy-intensive equipment, and even geographical location. By designing systems tailored to individual businesses, we can maximize efficiency, ensure reliability, and deliver a faster return on investment.

Industry-Specific Solar Solutions

1. Hospitality: Delivering Seamless Guest Experiences

Hotels, lodges, and resorts require uninterrupted power to maintain guest satisfaction. Load shedding can lead to cancelled bookings and damaged reputations. Solar solutions for the hospitality sector must:

  • Provide uninterrupted power: Integrating solar panels with hybrid inverters and battery storage ensures that critical systems like lighting, air conditioning, and kitchen appliances remain operational.
  • Reduce operational costs: Energy-efficient systems lower utility bills, freeing up budget for other guest services.
  • Enhance sustainability credentials: Eco-conscious guests increasingly prefer establishments committed to renewable energy.

Example: A private game lodge in the Limpopo region required a system capable of supporting its 24/7 operations. Bigfisch Projects installed a hybrid solar solution with advanced battery storage, allowing the lodge to operate independently of the grid while appealing to eco-conscious tourists.

2. Agriculture: Supporting Productivity and Growth

South African farmers face unique challenges, from water scarcity to high energy costs for irrigation and refrigeration. Solar solutions for agriculture need to:

  • Power energy-intensive operations: Systems must handle equipment like pumps, cold storage units, and processing machinery.
  • Support remote operations: Off-grid solutions are essential for farms in areas with limited access to electricity.
  • Optimize water management: Solar-powered water filtration and pumping systems address both energy and water challenges.

Example: A Western Cape vineyard needed a solution to power its irrigation system and cold storage facilities. Bigfisch Projects designed a solar system that reduced electricity costs by 40% while ensuring reliable energy during harvesting season.

3. Manufacturing: Sustaining High-Energy Operations

Manufacturing facilities consume significant amounts of electricity to power heavy machinery and assembly lines. Downtime due to load shedding can result in massive losses. Tailored solutions must:

  • Ensure consistent energy supply: Hybrid systems with large-scale battery storage minimize downtime.
  • Handle high loads: Customized inverters and solar arrays accommodate the facility’s energy-intensive needs.
  • Scale with growth: Systems should be designed to expand alongside the business.

Example: A Gauteng-based packaging factory adopted a Bigfisch Projects solar solution featuring high-capacity inverters and a scalable battery storage system. This reduced reliance on the grid while safeguarding production schedules.

The Design Process: From Concept to Completion

At Bigfisch Projects, our approach begins with understanding your business. Through detailed load profiling, feasibility studies, and energy audits, we identify your specific energy needs. Our engineering and design teams then craft a system that aligns with your operational goals. From procurement and installation to ongoing maintenance, we provide end-to-end support to ensure your system performs optimally.

The Bigfisch Advantage

Choosing Bigfisch Projects means partnering with a team that prioritizes your business’s unique needs. We provide:

  • Industry expertise: Proven solutions for hospitality, agriculture, manufacturing, and more.
  • Scalable systems: Future-ready designs that grow with your business.
  • Reliable support: Comprehensive maintenance and remote monitoring to maximize uptime.

Conclusion South Africa’s diverse industries demand diverse energy solutions. At Bigfisch Projects, we recognize that no two businesses are the same. By delivering tailored solar systems, we empower South African businesses to overcome energy challenges, cut costs, and achieve sustainability goals. When it comes to solar energy, one size does not fit all—but there’s a perfect fit for your business.

As we face the pressing challenges of climate change, finding sustainable energy solutions has never been more crucial. Solar energy stands out as a beacon of hope, offering a clean, renewable, and abundant source of power. Here’s why making the switch to solar energy is a win for both the environment and your carbon footprint.

Reducing Greenhouse Gas Emissions

One of the most significant environmental benefits of solar energy is its role in reducing greenhouse gas emissions. Traditional energy sources, like coal and natural gas, release large amounts of carbon dioxide (CO2) and other harmful pollutants into the atmosphere. These emissions are major contributors to global warming and climate change. In contrast, solar power generates electricity without emitting CO2, making it a clean alternative that helps decrease the overall carbon footprint.

Conservation of Natural Resources

Solar energy harnesses the power of the sun, a virtually infinite resource. Unlike fossil fuels, which are finite and require extensive mining and drilling, solar power relies on sunlight, which is abundant and freely available. By tapping into this renewable resource, we can reduce our reliance on depleting natural resources, preserving them for future generations.

Reducing Air and Water Pollution

Fossil fuel power plants are notorious for polluting the air with sulfur dioxide, nitrogen oxides, and particulate matter, leading to respiratory problems and other health issues. Additionally, these plants often contaminate water sources through runoff and waste. Solar energy systems, on the other hand, produce clean power without polluting the air or water. This leads to improved air quality and healthier ecosystems.

Mitigating Climate Change

By reducing dependence on fossil fuels and lowering greenhouse gas emissions, solar energy plays a critical role in mitigating climate change. Each kilowatt-hour of solar-generated electricity can significantly reduce CO2 emissions, helping to slow the warming of our planet. This shift not only benefits the environment but also supports global efforts to meet climate goals and agreements.

Energy Independence and Security

Solar energy enhances energy independence and security by diversifying the energy supply. This reduces the risk of energy shortages and price volatility associated with fossil fuel markets. By generating your own electricity from solar panels, you can decrease your dependence on the grid and enjoy more stable energy costs.

Promoting Sustainable Development

Investing in solar energy supports sustainable development by creating green jobs and fostering economic growth. The solar industry has seen rapid advancements and cost reductions, making solar power more accessible and affordable than ever. As more households and businesses adopt solar energy, we can build a cleaner, more resilient energy infrastructure.

Conclusion

Switching to solar energy is a powerful way to reduce your carbon footprint and contribute to a healthier planet. By embracing this renewable resource, we can significantly cut greenhouse gas emissions, conserve natural resources, reduce pollution, and promote sustainable development. Let’s harness the power of the sun and pave the way for a brighter, cleaner future.

Solar energy has a history as vibrant and enduring as the sun itself. From ancient civilizations discovering its raw power to today’s cutting-edge solar panels, the journey of solar energy reflects humanity’s constant drive to harness and innovate. Let’s take a journey together through the ages, from 7th century BC to present day.

Harnessing Sunlight in Ancient Times

The roots of solar energy stretch back to ancient times, long before the invention of solar panels or modern technology. As early as the 7th century B.C., magnifying glasses were used to focus sunlight, creating fire. The ancient Greeks and Romans employed mirrors to direct sunlight, utilizing the concentrated energy for practical purposes like lighting torches and igniting fires. These primitive but clever uses of solar power demonstrated a basic understanding of the sun’s potential.

The Birth of Photovoltaics: 19th Century Breakthroughs

In 1839, French physicist Edmond Becquerel made a landmark discovery: the photovoltaic effect, which is the principle that allows sunlight to generate electricity. This finding laid the groundwork for the development of solar cells, but it took decades before practical applications emerged. Subsequent pioneers, like Willoughby Smith, who discovered selenium’s photoconductive properties, and Charles Fritts, who created the first rudimentary solar cells using selenium wafers in 1883, continued to advance the field. These early innovations laid the cornerstone for the photovoltaic technologies we rely on today.

20th Century: The Dawn of Modern Solar Technology

The 20th century was a period of significant breakthroughs in solar technology. Following Becquerel’s discovery, scientists and engineers worked to improve the efficiency and practicality of solar cells. Hoffman Electronics played a key role in the late 1950s and early 1960s, enhancing photovoltaic efficiency to levels that made solar technology increasingly viable. The advancements were further accelerated by the space race, with NASA using solar panels to power satellites and spacecraft like Vanguard I, launched in 1958. Solar power became an indispensable technology for space exploration, demonstrating its potential for diverse applications.

Advances and Innovations: The Modern Solar Era

By the 1980s and 1990s, solar technology was on an upward trajectory. Researchers at the University of New South Wales achieved a remarkable 20% efficiency with silicon-based solar cells in 1985, signalling a significant step forward. Collaborations between the National Renewable Energy Laboratory and companies like Spectrolab led to even higher efficiencies, with a record-setting 33.3% efficiency in 1999. These innovations have made solar energy more accessible and cost-effective, spurring its adoption across industries and regions.

Solar Energy Today: Towards a Sustainable Future

Today, solar energy is a cornerstone of the renewable energy sector. With technology ranging from photovoltaic systems to concentrated solar power, solar energy is now a viable alternative to fossil fuels. The declining costs of solar panels, combined with increasing efficiency and government incentives, have accelerated solar energy’s adoption globally. These trends have contributed to a rapidly growing solar industry, with installations appearing on rooftops, solar farms, and even in innovative applications like solar-powered vehicles and portable devices.

A Bright Future for Solar Energy

The evolution of solar energy from ancient times to its current state of innovation is a remarkable journey. As the world seeks sustainable and eco-friendly energy solutions, solar energy is poised to play a central role. Continued research, investment, and policy support will be crucial to unlocking solar energy’s full potential, helping to create a cleaner and more sustainable future. With the right focus and collaboration, solar energy will continue to light the way forward, guiding us toward a brighter, greener tomorrow.

South Africa’s ongoing power outages pose significant challenges for guest houses and BnBs. These small hospitality businesses often bear the brunt of load shedding, with disruptions affecting guest satisfaction, operations, and profitability. However, solutions like solar power and Battery Energy Storage Systems (BESS) are transforming the way guest houses navigate these challenges, offering reliability, cost savings, and peace of mind.

Here’s a breakdown of the true costs of power outages and how Bigfisch’s energy solutions can help keep your business thriving.

Loss of Bookings and Revenue

Power outages can lead to canceled bookings, early checkouts, and poor reviews from dissatisfied guests. Research shows that load shedding has a direct impact on small businesses in South Africa, with guest houses and BnBs particularly vulnerable to revenue losses. As highlighted by Mail and Gaudian in December 2024 , consistent disruptions often deter tourists and business travelers, who expect reliable electricity and a seamless experience.

Bigfisch Solution: By installing a solar energy system paired with BESS, your guest house can maintain a consistent power supply. This ensures that guests enjoy uninterrupted access to essential amenities like air conditioning, lighting, and Wi-Fi, allowing you to maintain your reputation and avoid lost bookings.

Rising Operational Costs

Many guest houses rely on diesel generators during outages, but the rising cost of diesel and frequent maintenance can drain your operational budget. According to GreenCape, businesses that switch to solar energy can reduce their electricity costs by as much as 40%, providing long-term savings and financial relief.

Bigfisch Solution: A solar-powered system with battery storage significantly reduces reliance on expensive generators. With Bigfisch’s tailored solar solutions, you can generate clean energy during the day and store excess power in batteries for use during outages—saving money while reducing your environmental footprint.

Impact on Guest Comfort

Guests expect uninterrupted access to amenities like hot water, lighting, and Wi-Fi. Load shedding can leave them uncomfortable and dissatisfied, leading to negative reviews and fewer repeat bookings. The integration of solar energy in eco-tourism infrastructure plays a crucial role in promoting sustainability within the industry.

Bigfisch Solution: With a customized solar and BESS system, you can guarantee uninterrupted comfort for your guests. Whether it’s powering hot water systems or ensuring reliable internet connectivity, Bigfisch provides a solution tailored to your specific needs, ensuring your guest house stands out as a dependable choice.


Food and Beverage Losses

Guest houses that offer meals often face the challenge of food spoilage during outages. Perishable items stored in refrigerators or freezers can go bad, and power disruptions can make it difficult to cook or serve meals. An article from Tourism Update detailed the energy related challenges that businesses in the hospitality sector face, have severe financial repercussions.

Bigfisch Solution: Solar power ensures that refrigeration and cooking appliances remain operational even during load shedding. A robust battery storage system guarantees backup power when the grid fails, helping you avoid unnecessary waste and keep your kitchen running smoothly.

Safety and Security Risks

Load shedding can compromise security systems, leaving your property and guests vulnerable. Alarm systems, CCTV, and outdoor lighting may fail, increasing the risk of theft or other incidents.

Bigfisch Solution: A reliable solar and battery system ensures that your security infrastructure stays online 24/7. With a consistent power supply, you can prioritize guest safety, protect your property, and uphold your establishment’s reputation as a safe haven for travelers.

Why Choose Bigfisch for Your Solar and BESS Solutions?

Bigfisch Projects specializes in providing comprehensive energy solutions tailored to the needs of guest houses and BnBs. Our services include:

  • Solar power installations to harness clean, renewable energy.
  • Battery Energy Storage Systems for backup during outages.
  • Custom energy audits to design the perfect solution for your business.

By investing in solar and BESS, you can protect your business from the financial and operational challenges of load shedding while offering a seamless experience for your guests.

South Africa’s manufacturing sector continues to grapple with persistent energy challenges, primarily due to frequent load shedding by the state utility, Eskom. These power outages have disrupted operations, increased costs, and stifled economic growth. To mitigate these challenges, integrating Solar Photovoltaic (PV) systems with Battery Energy Storage Systems (BESS) offers a viable solution for stable production and cost control.

The Impact of Unreliable Energy on Manufacturing

In 2023, South Africa’s manufacturing sector faced significant setbacks due to escalating load shedding. The plastic manufacturing industry, predominantly comprising Small, Medium, and Micro Enterprises (SMMEs), reported production declines of 30% to 40%. These declines were attributed to the inability to afford the substantial capital expenditure required for alternative energy solutions, such as hybrid systems combining solar and generators. The thermal processes central to plastic production were severely compromised, leading to reduced overall production.

The negative impact extended beyond the manufacturing sector, affecting industries reliant on plastic products, such as agriculture, which depends on plastic packaging to protect food. This created a ripple effect, further hindering the broader economy.

A Solution for Stable Production and Cost Control

To combat the challenges posed by an unreliable energy supply, many manufacturers are turning to renewable energy solutions, specifically Solar PV combined with BESS. This combination allows businesses to generate their own electricity and store excess power for use during periods of low production or high demand, ensuring a continuous and stable energy supply.

The benefits of integrating Solar & BESS include:

  • Energy Independence: Reducing reliance on the national grid decreases vulnerability to load shedding and energy price fluctuations.
  • Cost Savings: By generating and storing their own electricity, businesses can significantly reduce energy costs.
  • Environmental Impact: Utilizing renewable energy sources contributes to sustainability goals and reduces carbon footprints.

Return on Investment (ROI) for Manufacturing Energy Solutions

Investing in Solar & BESS is not just an operational decision but a strategic financial move. The ROI for such systems has become increasingly attractive due to declining costs of solar panels and batteries, coupled with rising electricity tariffs.

Key factors influencing ROI include:

  • Initial Capital Outlay: While the upfront investment can be substantial, various financing options and government incentives are available to offset these costs.
  • Operational Savings: Reduced energy bills and lower maintenance costs contribute to long-term savings.
  • Energy Arbitrage: BESS allows businesses to store energy when prices are low and utilize it during peak pricing periods, optimizing energy expenses.

In many cases, businesses can achieve a payback period of 5 to 7 years, after which the savings directly enhance profitability.

Bigfisch Projects: Designing Customized Solar Solutions for Industrial Businesses

At Bigfisch Projects, we understand the unique energy challenges faced by South African manufacturers. Our team specializes in designing and implementing customized solutions tailored to meet the specific needs of industrial businesses.

Our approach includes:

  • Comprehensive Energy Assessments: Analyzing current energy usage patterns to design optimal systems.
  • Customized System Design: Developing solutions that align with operational requirements and financial goals.
  • Seamless Integration: Ensuring that new systems integrate smoothly with existing operations, minimizing disruptions.
  • Ongoing Support and Maintenance: Providing continuous support to ensure long-term system performance and reliability.

By partnering with Bigfisch Projects, manufacturers can achieve energy independence, reduce operational costs, and enhance their competitiveness in a challenging economic environment.

Conclusion

The challenges posed by South Africa’s unreliable energy supply require proactive and innovative solutions. Integrating Solar PV systems with Battery Energy Storage not only addresses these challenges but also offers substantial financial and environmental benefits. Bigfisch Projects is committed to guiding industrial businesses through this transition, ensuring a sustainable and profitable energy future.