April Solar Update | Cosy 9 Heat Pump | 2x15.5kWh Fogstar Battery | Cost & Savings

April has been a big month for upgrades and sunshine! ☀️ In this update, I break down my solar generation stats — one of the best months yet — and show how my new Cosy 9 heat pump is performing. I’ve also added a second Fogstar battery to the system, boosting storage capacity just in time for peak solar season. Plus, I'm now getting paid by Octopus for exporting surplus energy. If you're curious about real-world solar performance, battery storage, or the economics of running a heat pump in the UK, this one’s for you!

00:00 - Intro
01:30 - Engineering Sneak Peak
04:50 - The Plan
08:00 - Updated System Overview
08:40 - Solar Production
09:06 - Tigo Optimisers
09:42 - Array Comparison
10:09 - EV Usage & Savings
11:30 - Monthly Solar Totals
12:00 - Elec Savings & Bills
13:20 - Heat pump Savings
15:05 - Cosy 9 & Battery Payback
16:23 - Total System Payback
17:07 - Outro

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System overview:

18x Aiko 445w all black (8 East, 5 North, 5 South)
10 x Tigo optimisers (to North/South)
8kW Sunsynk hybrid inverter
2x15.5kWh Fogstar Battery (31kWh)
Zappi car charger
Octopus Energy Cosy 9 Heat Pump

The solar Installers did a great job of putting up with all my questions and did a fantastic job, I have no sponsorship from them, but if you need a system installed in the Bedfordshire, Cambridgeshire, Hertfordshire & Northamptonshire, Buckinghamshire region than check them out here:

https://www.lushrenewables.co.uk/
Huntingdon Office: 01480 878549
Bedfordshire Office: 01767 348768
Email: [email protected]

Welcome to Watt’s Up? with Steve! ⚡🌍 Join me as I explore the world of renewable energy, sharing my real-life experiences with home solar power, electric vehicles, and the latest in sustainable tech.

On this channel, you’ll find in-depth insights into my home solar PV system, monthly energy usage breakdowns, and honest reviews of EV's and heat pumps. I’ll also dive into the future of clean energy, discussing the latest innovations that can help us all reduce our carbon footprint.

Whether you're looking to switch to solar, invest in an EV, or simply stay updated on the fast-moving world of renewable technology, this channel is for you. Let’s make smarter, greener choices together!

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