Save energy
with HotBot™
The smart geyser controller fixing loadshedding one home at a time.

Meet HotBot, a small smart energy device fused with artificial intelligence, that connects to any existing geyser, and allows you to control it from anywhere on your phone. It intelligently turns your geyser on and off, making it operate far more efficiently.
Together with all other HotBots, we can fix loadshedding by shifting electricity usage out of peak times to better balance the demand on our electricity grids.
It’s time to upgrade

Geysers are responsible for
40 – 60% of your electricity
bill

Electricity prices have
increased 5x in the past
10 years

A typical geyser bursts every
5 – 10 years due to undetected issues

Traditional geyser timers
work in isolation and can
contribute to loadshedding
Small, smart ways to lighten the energy load for everyone

Only pay for the hot water you use
HotBot helps you use up to 30% less energy heating water and syncs up with other HotBots in your area to create the most efficient heating schedule. You save, and so does everyone else.
No more guessing
Customise your hot water schedule and actually see the effects of your usage. A powerful intelligence engine at your fingertips gives you full control over your geyser.


Use it while it’s hot
Most geysers stay warm even when they’re not heating. Get the most out of a thrifty heating schedule with live temperature updates.
Stay flexible
Even a good routine needs some room for unexpected plot twists. Override the schedule at any time or use vacation mode when you’re away.


Never worry about leaks again
Get notified in real time if anything goes wrong. HotBot’s smart sensors detect leaks, prevent damage to your home, and monitor your geyser’s efficiency.
Be smart like HotBot
Not only does HotBot’s intelligence engine learn and adapt to your hot water schedule, it helps you form better energy habits. Get insights on how to save more and reduce your impact on the grid.

Get rewarded with HotBot™ savings

Because HotBot helps you achieve your energy savings goals each month, you can save up to 30% on your water heating costs and fully fund your HotBot subscription. That’s the equivalent of 200 – 300 free showers a year!
Get rewarded with HotBot™ savings
Spend less. Save more.
We created HotBot so
everyone could save
Here at Plentify we don’t like loadshedding or cold showers either. We’ve got HotBot at work in our own homes too, so we go out of our way to make sure HotBot is working optimally. Our engineers are always improving the intelligence engine, making sure we have hot water when we want it and save electricity when we don’t.
Spend less.
Save more.
We created HotBot so
everyone could save
Here at Plentify we don’t like loadshedding or cold showers either. We’ve got HotBot at work in our own homes too, so we go out of our way to make sure HotBot is working optimally. Our engineers are always improving the intelligence engine, making sure we have hot water when we want it and save electricity when we don’t.
Still deciding?
With HotBot there are no hidden or unexpected costs. Save more and spend less than you would with a traditional geyser timer. It’s kind of a no-brainer.
Take control and start saving

Install
Once subscribed, you will receive an email with a personalised link to pick a convenient time for an accredited plumber to install your HotBot.

Personalise
Good habits need a good routine. Set your hot water schedule so HotBot can get to work. But you can override the schedule at any time for those unexpected plot twists or use vacation mode when you’re away.

Save
Track your savings in the app and see the effects of your hot water use in real time. Each month you’ll see your progress so you can discover even more ways to save.
Control your geyser from anywhere
Users who love HotBot™
HotBot for medium to high usage households
If you spend more than R1,000 per month on electricity, and 3 or more people use the connected water heater you will benefit the most from HotBot savings.
Commonly asked questions
Will you join the movement?
Plentify’s efforts have earned the recognition, trust, and support of several leading global organisations. Join us in creating the energy system that the world needs.
-
2017
Echoing Green
World’s leading angel investor in social impact startups.
Plentify’s relationship: Fellow
-
2017
Tamer Fund
The Tamer Fund for Social Ventures provides seed grants to social and environmental ventures.
Plentify’s relationship: Grant recipient
-
2018
The African Entrepreneurship Award
Africa’s largest, private sector award focused on helping businesses that use technology.
Plentify’s relationship: Winner
-
2019
EDF
One of the world’s largest utilities and renewable energy producers. Pulse is their annual energy innovation competition.
Plentify’s relationship:
Finalist: UK, 2020
Winner, Southern Africa 2019 -
2020
GIZ
The GIZ implements the South African German Energy Programme (SAGEN), in conjunction with the DMRE, SALGA, Eskom and the National Treasury.
Plentify’s relationship: Partner
-
2020
City of Cape Town
Second-largest economic centre in South Africa, contributing 10% of the national GDP and home to 4 million residents.
Plentify’s relationship: Project partner
-
2021
World Alliance for Efficient Solutions
Non-profit organisation launched at the Bonn Climate Conference to bring together the main actors in the field of clean technologies
Plentify’s relationship: Member
-
2021
The Diamond List
The Diamond List is an exclusive and global group of game-changing climate ventures deemed investment-ready and poised for impact.
Plentify’s relationship: Portfolio company
-
2021
CSIR
The Council for Scientific and Industrial Research is South Africa’s premier scientific R&D organisation, and the largest R&D organisation in Africa.
Plentify’s relationship: Partner
-
2021
EEP
The Energy and Environment Partnership Trust Fund (EEP) is managed by the Nordic Development Fund and provides financing to innovative clean energy projects and technologies.
Plentify’s relationship: Portfolio company
-
2021
Third Sphere
Top North American early stage climate VC firm.
Plentify’s relationship: Portfolio company
-
2021
Simple Capital
Investor focused on early stage hyper-growth companies.
Plentify’s relationship: Portfolio company
-
2021
URBAN-X
World-renowned accelerator for urbantech solutions which make cities more sustainable, livable, and resilient.
Plentify’s relationship: Portfolio company
-
2022
Global Startup Awards
The world’s largest independent startup competition, covering 124+ countries.
Plentify’s relationship:
Top South Africa startup
African Founder of the Year
- 2017
- 2017
- 2018
- 2019
- 2020
- 2020
- 2021
- 2021
- 2021
- 2021
- 2021
- 2021
- 2021
- 2022
-
Echoing Green
World’s leading angel investor in social impact startups.
Plentify’s relationship: Fellow
-
Tamer Fund
The Tamer Fund for Social Ventures provides seed grants to social and environmental ventures.
Plentify’s relationship: Grant recipient
-
The African Entrepreneurship Award
Africa’s largest, private sector award focused on helping businesses that use technology.
Plentify’s relationship: Winner
-
EDF
One of the world’s largest utilities and renewable energy producers. Pulse is their annual energy innovation competition.
Plentify’s relationship:
Finalist: UK, 2020
Winner, Southern Africa 2019 -
GIZ
The GIZ implements the South African German Energy Programme (SAGEN), in conjunction with the DMRE, SALGA, Eskom and the National Treasury.
Plentify’s relationship: Partner
-
City of Cape Town
Second-largest economic centre in South Africa, contributing 10% of the national GDP and home to 4 million residents.
Plentify’s relationship: Project partner
-
World Alliance for Efficient Solutions
Non-profit organisation launched at the Bonn Climate Conference to bring together the main actors in the field of clean technologies
Plentify’s relationship: Member
-
The Diamond List
The Diamond List is an exclusive and global group of game-changing climate ventures deemed investment-ready and poised for impact.
Plentify’s relationship: Portfolio company
-
CSIR
The Council for Scientific and Industrial Research is South Africa’s premier scientific R&D organisation, and the largest R&D organisation in Africa.
Plentify’s relationship: Partner
-
EEP
The Energy and Environment Partnership Trust Fund (EEP) is managed by the Nordic Development Fund and provides financing to innovative clean energy projects and technologies.
Plentify’s relationship: Portfolio company
-
Third Sphere
Top North American early stage climate VC firm.
Plentify’s relationship: Portfolio company
-
Simple Capital
Investor focused on early stage hyper-growth companies.
Plentify’s relationship: Portfolio company
-
URBAN-X
World-renowned accelerator for urbantech solutions which make cities more sustainable, livable, and resilient.
Plentify’s relationship: Portfolio company
-
Global Startup Awards
The world’s largest independent startup competition, covering 124+ countries.
Plentify’s relationship:
Top South Africa startup
African Founder of the Year