UPDATED June 29, 2026
Higher electricity costs and tighter operating budgets are pushing businesses across Singapore to rethink how they buy power. For manufacturers, commercial building owners, and energy-intensive operators, grid electricity is essential, but its pricing can be difficult to predict.
That is exactly where a fixed rate solar electricity contract in Singapore can make a real difference.
Instead of buying solar panels outright, businesses can purchase the clean electricity generated from an on-site solar system at an agreed rate. A specialised provider like Terrenus Energy takes on the funding, installation, ownership, and maintenance, helping companies gain better cost visibility without upfront investment or system ownership.
The pressure is already showing up in the market. The Business Times reported that one 12-month electricity plan rose from S$0.254/kWh in late February to S$0.32/kWh after the start of the Iran conflict. For any business renewing its contract, a jump like that can make budgeting feel a lot less predictable.
In this blog, we will explain how fixed-rate solar contracts work, why they are becoming more relevant for commercial users, and how they can help businesses manage electricity price volatility more strategically.
A fixed rate solar electricity contract is a long-term agreement that lets your business buy solar electricity at an agreed rate.
Here is how it works. A solar provider installs a rooftop solar PV system at your facility, while also taking care of the funding, ownership, operations, and maintenance. Your business does not need to purchase the panels upfront. You simply buy the clean electricity the system generates.
That is what makes the model practical for commercial and industrial users.
The benefit is not only that your business gets access to renewable energy. It is also that part of your electricity cost becomes easier to plan around. Instead of being fully exposed to future market movements, your business can secure a fixed rate for the solar-generated portion of its power usage.
For companies looking at zero investment solar for businesses in Singapore, this offers a clearer path forward by lowering upfront barriers, improving cost visibility, and supporting sustainability goals without taking on solar asset ownership.
Electricity prices are becoming harder to predict, and that makes budgeting more difficult for businesses with high energy usage.
For manufacturers, warehouses, commercial buildings, and other energy-intensive facilities, even a small change in electricity rates can affect monthly operating costs. When prices move suddenly, planning ahead becomes much harder.
That is why more businesses are looking for energy solutions that offer better cost visibility.
A fixed-rate solar electricity contract can help by giving businesses a more predictable rate for the solar power generated on-site. This is especially useful for facilities that use a lot of electricity during the day, when solar generation is at its strongest.
It also helps companies think beyond short-term electricity savings. Instead of only comparing today’s grid rates, businesses can plan around a cleaner energy source with more stable long-term pricing.
For many organisations, this makes fixed-rate solar both a practical cost-management tool and a step toward their sustainability goals.
A fixed-rate solar Power Purchase Agreement, or PPA, gives businesses a simpler way to adopt solar without having to purchase or manage the system themselves.
Instead of buying and managing the solar system yourself, solar providers like Terrenus handle main project responsibilities. Your business simply purchases the electricity generated at the agreed rate.
Here is how the process usually works:
This structure keeps the process easier for internal teams. It removes the need for upfront investment, reduces maintenance responsibilities, and gives businesses a more predictable rate for the solar electricity generated on-site.
A fixed-rate solar electricity contract helps businesses manage energy cost risk while adopting clean energy.
By locking in an agreed rate for solar electricity generated on-site, businesses can make part of their energy spend more predictable. This reduces exposure to grid price fluctuations and supports better long-term budgeting, especially for facilities with strong daytime electricity demand.
Under a zero-CAPEX model, the solar provider funds, installs, owns, and maintains the system, so the customer can benefit from renewable energy without upfront investment or asset ownership.
In this way, a fixed-rate solar contract acts as both a financial hedge and a clean energy solution, helping businesses strengthen cost control, resilience, and sustainability planning.
It is important to be realistic about what solar can and cannot do.
A fixed-rate solar electricity contract can help stabilise part of your electricity cost, but it does not replace your entire grid supply. Solar panels generate electricity during daylight hours, so your business will still rely on the grid at night, during cloudy periods, or when energy demand is higher than the system’s output.
The value is strongest for businesses with high daytime electricity usage, such as factories, logistics hubs, and commercial buildings. The more solar electricity your business can use as it is generated, the larger the portion of your electricity cost that can be tied to the agreed fixed rate.
That is why rooftop solar is best seen as a practical way to reduce exposure to electricity price volatility, rather than a complete replacement for grid electricity.
A fixed-rate solar electricity contract can be a practical zero-CAPEX option for businesses that want better control over energy costs, especially for those that have empty roofs and a long remaining building lease
The appeal lies in what it frees you from, such as budgeting around unpredictable electricity prices, justifying large capital requests, and managing assets outside your core business. Energy simply becomes a stable, known line item.
For businesses sitting on underutilised roof space, this is an opportunity hiding in plain sight. That empty roof can become a working asset that lowers overheads and strengthens your environmental credentials, with no upfront capital and no operational burden.
Disclaimer: This write-up is intended for general informational purposes only and does not constitute legal advice.
