When I decided to invest in renewable energy for my home, I wanted something more than just solar panels — I wanted an 8kW solar system with batteries cost that could provide power throughout the day and night. After researching many companies, I chose Mak Energy. This article shares my honest experience, including the costs, real performance, and what I learnt — so you have a clear understanding if you're considering the same.

Why I Chose an 8kW Solar System with Batteries

Growing up in an area with frequent power cuts, I always felt vulnerable during evenings and early mornings. Solar panels alone help during daylight, but without battery storage, the benefits disappear when the sun sets.

• I needed enough solar capacity (8kW) to cover my high daytime loads: air conditioning, fridge, lighting, and some small appliances.

• I wanted battery storage to ensure the house remains functional during the night or on cloudy days.

Mak Energy impressed me because they offered a complete package — panels, inverter, battery, installation — all tested under UK standards. Their consultation was thorough: they examined my roof size, orientation, shading, and my electricity consumption patterns.

What I Paid: Cost Breakdown

Here’s how the cost broke down for my 8kW solar system with batteries through Mak Energy. These numbers are based on my actual quote and installation, so they are real-world, not theoretical.

Total Paid: ~ £18,800

Keep in mind: this was for a high-quality system; cheaper setups are available, but often with lower warranties, less efficient panels, or smaller battery capacities.

Performance: What I Actually Got

After the system was installed, I monitored performance closely for several months. Here’s what my experience was like:

• During sunny summer days, the 8kW solar system with batteries generated more energy than I used during daytime. Excess energy charged the batteries fully by late afternoon.

• At night, the stored battery power lasted confidently through evening lighting, TV, small kitchen appliances. I didn’t need to pull power from the grid until early morning when battery reserve dropped.

• In winter, performance naturally dropped (shorter days, less sun), but the system still produced enough to cover daytime loads, and battery storage helped during early evening.

Savings: My electricity bills dropped by about 60-70% compared to prior years. Factoring in energy export (when panels produce more than I need during the day), the return on investment is estimated around 6-8 years, depending on future electricity price rises.

What Affects the Cost & What to Watch Out For

Not all 8kW with battery systems are the same. When quoting your project, these are key variables:

1. Battery Capacity & Type
   Bigger batteries cost more. Lithium-ion is more expensive upfront but lasts longer and has better efficiency (depth of discharge, lifecycle) than older lead-acid types.

2. Panel Efficiency & Quality
   Higher efficiency panels command a premium but produce more energy per square metre, which may let you use fewer panels or get more from your roof.

3. Roof Situation & Shading
   If your roof has shading, complex angles, or needs reinforcement, installation costs go up. Mak Energy assessed this beforehand, which avoided surprises.

4. Inverter Type & Features
   Hybrid inverters that handle battery integration, monitoring, and safety features cost more but are essential for smoother performance.

5. Warranty & After-Sales Service
   Panels, inverters, and batteries have warranties. Mak Energy offered good warranty periods (panels ~25 years, battery performance guarantee ~10 years). After-sales support is important for long-term satisfaction.

My Verdict: Is It Worth It?

After living with the system for over a year, I can say yes — the 8kW solar system with batteries from Mak Energy is worth the investment if:

• You use electricity during evenings or nights (not just daytime).

• You have enough roof space with good sun exposure.

• Your electricity rates are high (so savings are more meaningful).

If your usage is minimal, or you only want off-grid for occasional use, smaller systems may suffice. But for full home coverage and peace of mind during blackouts or low-sun days, this size has proven reliable.

Practical Tips If You’re Considering a Similar Setup

• Get a detailed site survey (roof shading, orientation, structure strength) before final quote.

• Ask for real performance estimates (not just ideal-conditions numbers).

• Choose panels and batteries with strong warranties.

• Ensure the inverter has sufficient surge capacity (AC motors, starting loads).

• Consider expandability: battery banks can sometimes be added later if usage increases.

Final Thoughts

Choosing to install an 8kW solar system with batteries through Mak Energy has been one of the best decisions for my household in terms of sustainability and cost savings. Upfront cost was significant (~£18,800), but by reducing grid dependency, managing power usage, and using battery storage, I’ve achieved both comfort and financial returns.

If you’re seriously considering solar + battery, I recommend using a system size like this only if you need it — for frequent evening use, blackout protection, or if you want your home to be more energy independent. With the right design and partner like Mak Energy, the payoff can be real.