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By Sona Solar Knowledge & Solar Systems Education Team

On March 27, 2026

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COMMERCIAL SOLAR MILESTONE

Hospitality Goes Green: RTG Expands Solar Investment with Massive 2MW Project at Rainbow Towers

By Oudney Patsika (Sona Solar Zimbabwe)
Industrial Focus: Commercial Solar, Grid-Tied Systems, ESG Strategy

Securing Operational Resilience in Hospitality. The Rainbow Tourism Group (RTG) is setting a powerful precedent for the Zimbabwean hospitality sector. Following proven success at their Kadoma property, RTG has announced plans to roll out a monumental 2-megawatt (2MW) solar energy project at its flagship Rainbow Towers Hotel and Conference Centre in Harare. This Commercial Solar milestone represents a massive shift toward energy independence.

Commercial Solar Installation: Rainbow Towers Hotel 2MW Project

2MW GRID-TIED SYSTEM

This massive commercial solar installation will secure the energy needs of one of Zimbabwe's largest hospitality hubs while feeding surplus power back into the national grid via Grid-Tied Systems.

At Sona Solar Zimbabwe, we continuously advocate for industrial and commercial entities to seize control of their energy economics through a robust ESG Strategy. RTG's strategic investment perfectly illustrates how Renewable Energy is no longer just an environmental buzzword—it is a critical driver of profitability and business continuity in the modern Zimbabwean economy.

Building on Proven Success

The Kadoma Pilot Project

RTG’s latest move is not a gamble; it is an expansion based on hard data. The group's initial solar plant at the Kadoma Hotel and Conference Centre served as a highly successful proof of concept for integrating renewable energy into high-consumption commercial properties.

31% Reduction in Energy Costs

According to RTG Board Chairperson Douglas Hoto, the Kadoma plant generated over 270,984 kilowatt-hours (kWh) of clean energy in the past year alone. This direct generation resulted in a massive 31 percent reduction in energy costs for the property, highlighting the undeniable financial benefits of commercial solar.

The Rainbow Towers 2MW Project

Scaling Up Generation

To meet the immense energy demands of the Rainbow Towers Hotel & Conference Centre, RTG is drastically scaling up its renewable infrastructure. The upcoming installation is a monumental 2-megawatt (2MW) solar system.

A Grid-Tied National Contributor

The system is projected to produce nearly 3 million kilowatt-hours (2,942,838 kWh) annually. Crucially, the architecture of this installation goes beyond self-consumption.

Feeding the National Grid

Hoto confirmed that the massive 2MW system will be grid-tied. This allows any surplus power generated by the hotel to be channelled directly back into the national grid. "This enables surplus energy to be fed into the national grid, contributing to broader national energy resilience," he stated.

Sustainability at the Core

Embedding ESG Principles

For RTG, this solar expansion is a core pillar of their Environmental, Social, and Governance (ESG) strategy. "Sustainability remains central to Rainbow Tourism Group’s long-term value creation strategy," noted Hoto.

The "Green Stays" Programme

The group’s broader "Green Stays" initiative has already delivered measurable reductions in water and chemical usage. Current and future refurbishment projects now automatically incorporate smart energy systems and water-saving technologies to maximize overall operational efficiency.

The Financial ROI of Going Green

Driving Profitability

RTG’s commitment to sustainability aligns perfectly with its financial success. The group reported solid growth in its 2025 financial year, with revenue rising by 13 percent to US$50.3 million.

RTG Chief Executive Tendai Madziwanyika emphasized that the group’s investment in renewable energy is a deliberate, strategic move to drastically cut operational costs while simultaneously reducing their carbon footprint.

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From hotels and lodges to high-output manufacturing plants, inconsistent power and ZESA load shedding destroy business profitability. Take absolute control of your energy security today with an industrial-grade solar solution designed for maximum ROI and long-term operational resilience in Zimbabwe.

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