Climate Fintech Platform

Smart batteries for every home.
£0 upfront.

We take care of the financing so homeowners can get a smart battery with nothing to pay upfront. Installers earn on every job. VPP providers get a growing fleet. Investors get steady returns.

4G ✓
0
Eligible UK Homes
0
Batteries / Month in the UK
0
Total Addressable Market
<1%
Current Penetration

What We Do

We make residential batteries accessible to everyone.

Homeowners pay £55 a month with nothing upfront. Professional investors fund each battery. The grid gets the flexibility it needs. Installers get paid on every job. We manage the entire lifecycle from contract to grid dispatch.

£0 Down Subscription

Homeowners get a 9.5 kWh to 13.5 kWh smart battery system with 4G connectivity. No deposit, no credit card, just a simple monthly fee.

🔌

Grid Connected via VPP

Every battery joins a Virtual Power Plant and starts earning revenue from grid flexibility services like Dynamic Containment and wholesale energy trading.

🏦

Institutionally Financed

Each battery is funded by professional investors through a ring fenced structure. The homeowner carries no financial risk. Neither does the installer.

📊

Software Platform

Installer portal, homeowner dashboard, VPP dispatch management and investor reporting. Everything runs through one technology layer built by us.

How It Works

Four steps from customer to connected grid asset.

01

Sign

The homeowner signs a 10 year subscription at £55 a month. Fully digital and FCA compliant.

02

Install

An MCS certified installer supplies and fits a 9.5 to 13.5 kWh battery system with a 4G dongle.

03

Activate

After installation the customer signs up on the Third Grid platform and grants access for VPP enrolment and monitoring.

04

Earn

The battery starts dispatching to grid markets. The homeowner saves. The installer earns. The grid gets more stable.

For Installers

Stop losing customers to price shock. Partner with us instead.

You know the feeling. A homeowner wants a battery. They hear the price. They walk away. With Third Grid you can offer that same battery at £0 upfront. You supply it, you install it, you get paid. We handle the financing and everything after.

01

You apply

Fill out the partner enquiry. We check your MCS certification and arrange an intro call.

02

We onboard you

Portal access, training materials and your first customer leads.

03

You start installing

Submit customer details. We handle credit checks and contracts. You supply, install and get paid.

Our Mission

To make residential energy storage universally accessible in the UK.

We believe every home should have access to smart energy storage regardless of what the homeowner can afford upfront. Our financing model makes that possible while creating real returns for climate aligned investors.

About Third Grid

Climate fintech, built in London.

Third Grid sits at the intersection of three grid stakeholders. Homeowners who need affordable energy. Grid operators who need flexibility. And institutional investors who need climate positive returns.

We are building the UK's first residential battery securitisation platform. It turns individual home batteries into an institutional grade asset class that benefits everyone in the chain.

Climate Impact

Every battery is climate infrastructure.

The UK needs 30 to 50 GW of flexible capacity by 2035. At scale our fleet displaces thousands of tonnes of CO₂ each year.

~348 kg
CO₂ / battery / year
10 MW
flex at 10,000 units

My Battery DEMO

Your battery is active and earning

LIVE
Battery Exporting
87%
9.5 to 13.5 kWh 4G ✓
Monthly Savings
£82.40
vs. £55.00 subscription
Net saving this month
+£27.40 in your pocket
Grid Status
🟢 Active — £0.31/hr
Dynamic Containment
Today
£2.48
Dispatches
6
Subscription
Monthly £55.00
Next payment 01 Apr 2026
Started 14 Jan 2026
Ends 14 Jan 2036
Type 10 Year ESA
Energy Activity
00 06 12 18 23
Charging
Exporting
Idle

Our Team

The people behind Third Grid.

Third Grid was founded to solve a problem that frustrated everyone in the energy chain. Homeowners couldn't afford batteries. Installers kept losing sales. The grid kept wasting renewable energy. We decided to fix the financing piece that was holding everything back.

AS

Aadithya Shankar

Founder & CEO

Aadithya holds a BSc in Economics and an MSc in Energy and Environmental Policy from University College London. He designed Third Grid's commercial model and SPV origination framework from the ground up.

His work sits across climate fintech, VPP markets, institutional capital structure and regulatory strategy. He is the architect of the securitisation model that makes Third Grid's £0 down product possible.

aadithya@thirdgrid.co.uk

We are hiring

Third Grid is building its founding team. We are looking for people who care about climate, understand energy markets and want to build something meaningful from the ground floor.

Co-Founder & CFO

5 to 8 years in structured finance, ABS or infrastructure debt. Experience closing SPV transactions.

Full Stack Developer

Build the installer portal and customer dashboard. React, Node, cloud infrastructure.

Energy Sector Advisor

Ex Octopus, NESO, Ofgem or Habitat Energy. VPP and grid flexibility expertise.

AW

Anthony Williams

Co-founder & CTO

Anthony holds a BSc in Astrophysics and both a Computer Science MSc and an Energy and Environmental Policy MSc from University College London. He handles Third Grid's technical development and battery monitoring.

His work sits across software engineering, product development, technical strategy and innovation.

anthony@thirdgrid.co.uk

Contact Us

We would love to hear from you.

Whether you are an installer who wants to partner with us, a VPP provider exploring fleet aggregation, an investor interested in our model or a homeowner who wants a battery. Drop us a line.

Send us a message

Get in touch directly

Website
www.thirdgrid.co.uk
Location
London, UK

Installers

If you are an MCS certified BESS installer and want to offer a £0 down battery product to your customers, email us at info@thirdgrid.co.uk with your MCS number and we will arrange an introductory call within 48 hours.