Maximising the Benefits of Solar PV and Battery Storage with Flexible Tariffs

As more UK homeowners and businesses look to reduce energy costs and carbon emissions, solar PV combined with battery storage has become a smart and sustainable investment. But there’s an often-overlooked way to supercharge your savings—leveraging flexible energy tariffs.

At Knight & Day Solar Installations, we don’t just fit solar panels and batteries. We help you take full advantage of today’s smart energy ecosystem, reducing your system’s payback period and increasing your long-term savings.

Solar PV + Battery Storage = Greater Independence

Installing solar PV panels allows you to generate clean electricity during daylight hours. Adding a battery enables you to store any surplus energy instead of exporting it for a low return. That stored power can then be used in the evening or when solar generation is low, reducing your reliance on expensive grid electricity.

This combination already improves your energy efficiency, but when paired with flexible tariffs, the financial return becomes even more attractive.

What Are Flexible Tariffs?

Flexible or time-of-use tariffs reward you for using electricity when it’s cheaper and more abundant on the grid—typically during off-peak hours. These dynamic tariffs can also offer higher payments when you export stored electricity back to the grid during peak demand times.

Some popular flexible tariffs include Octopus Agile, OVO Charge Anytime, and British Gas’ PeakSave. These smart tariffs can be integrated with your solar and battery system to automate when you buy, use, or sell electricity.

Faster Payback and Smarter Savings

With the right setup, your battery can be programmed to charge from the grid at low-cost times (such as overnight) if needed, and discharge during peak periods when electricity prices are higher. Combined with solar generation, this reduces your electricity bill and maximises your return on investment.

In many cases, homeowners using flexible tariffs report payback periods for their systems reduced by 2–4 years, depending on usage habits and energy prices.

Ready to Optimise Your Energy Future?

At Knight & Day Solar Installations, we tailor every system to your energy profile and guide you through tariff selection and battery optimisation. Whether you’re looking to cut your bills, reduce your carbon footprint, or increase energy independence, combining solar, storage, and smart tariffs is the way forward.

Contact us today to find out how to make the most of your solar investment.