1. Microgrids are everywhere
Calling Time on Diesel
Microgrids are everywhere

2. Tangent Energy Why - to tackle air pollution and CO2
Design & build Energy Management Systems and Microgrids
Software platform for remote fleet management
BEMS
EV charge management
Combined units (diesel & Batteries)
Manufacturing
Environmental test chamber
Different battery technologies
Why - to tackle air pollution and CO2
reduce usage of diesel &
make renewables more viable.

3. The energy revolution
Aggreko the worlds largest energy company just paid 40m for a storage company.
Tesla is putting batteries all across the word
Electric vehicles are accelerating up the agenda
Renewable energy is now mainstream
Climate change
Energy security

4. Electricity comes from Utility Grid or a Diesel generator NOW we have
The challenge
Electricity comes from Utility Grid or a Diesel generator
NOW we have
Renewables
Internet
Cost effective storage
But now we have PV and wind and Storage and we have the power of the internet

5. What is a Microgrid?
The infrastructure to supply electricity without the utility grid:
Off grid or edge of grid
There is no Grid
The grid is there but unreliable or its expensive
A microgrid gives you autonomy
Uses a power generator, connects to the loads and provides a way of managing this.

6. Why microgrids? Provides local power Greater Autonomy & Resilience
Cost effective
Quicker and Cheaper than Utility grids
Developing world – infrastructure will follow mobile phone revolution and miss out centralised infrastructure
Developed world the same issues apply
Temporary power
Energy management, cost, reliability and capacity

7. Where do you find microgrids?
Fast growing cities
Mega cities – Lagos
Rural electrification projects
Private wire networks
Temporary sites
Live events
Construction
Lagos is growing at roughly 10,000 people per month
Nigeria will become the worlds 3rd most populous country by 2050
The infrastructure can’t be deployed fast enough
Mega cities – Lagos

8. Where do you find microgrids?
Bangladesh
There are 1 billion people in sub Saharan Africa without access to electricity
Rural Electrification

9. Where do you find microgrids?
Fast growing cities
Mega cities – Lagos
Rural electrification projects
Private wire networks
Temporary sites
Live events
Construction PV
Diesel generator
Battery storage?
Rural Electrification

10. Where do you find microgrids?
Fast growing cities
Mega cities – Lagos
Rural electrification projects
Private wire networks
Temporary sites
Live events
Construction
Secret Garden Party
Glastonbury
Live Events

11. Where do you find microgrids?
Fast growing cities
Mega cities – Lagos
Rural electrification projects
Private wire networks
Temporary sites
Live events
Construction
Construciton accounts for 15% of emissions
Construction sites

12. Challenges BUT SCALE PERMANENCE WHERE DO YOU GET POWER FROM?
CAN YOU GET ENOUGH?
PV – needs a lot of land 1MWh approx. 1.5 ha
Grid - costs a fortune to get a connection
Diesel genset - Cheap, quick and easy
BUT
Dirty, inefficient and getting more expensive
How much Energy do you really need?

13. The real problem CO2 emissions Air Pollution
We are currently on track but are forecast to fall behind from 2020
Air Pollution
Diesel generators produce CO2, NOX, Particulates and Ozone
Air pollution is a major contributor to ill health – 40,000 people per annum die prematurely in the UK alone.

14. CO2 progress To limit temperature rises to 2°C
UK climate change Act 2008 set a target of an 80% reduction by compared to 1990
Now the scientific consensus is we need to be well below 2°C
The low hanging fruit is gone
It is getting harder to tackle

16. Infrastructure From diesel generators – 15,000 in UK
Temporary and permanent
Designed to provide prime power
Fast and reliable
Polluting and inherently inefficient
60kVA burns 5 litres / load

17. Daily Load Profile

18. Calculated Max Load

19. Actually Supplied

20. Off Peak 60%

21. The problem
Fixed speed diesel gensets don’t do very well with varying loads
They are most efficient at 70% load
Load profiles vary down to 10%
Unloaded Diesel generator is thirsty, more polluting and requires more frequent servicing
Users ALWAYS oversize the generator,
what's the maximum load?
Add a margin of error
What is the next larger standard unit size?
What is actually available to procure?
All these steps can lead to a generator that is double the required size.
Plus the required size is determined by the maximum load which may not be a very common occurrence, it may never happen
WATT NOW – 2 years of monitoring in NL

22. Temporary power required for
The scenarios
Temporary power required for
Construction or
Live Events
Permanent power
Off grid or
Edge of grid

23. The Hybrid Concept
100% runtime

24. The Hybrid Concept 60% Reduction in runtime
Generator charges the Energy Storage System (ESS)
ESS manages the loads
Efficient, Quiet, Non-polluting

25. The Hybrid Concept 60% Reduction in runtime 60% reduction in runtime
Reduction in emissions and NOISE
Run the diesel generator at its optimal load
Increase service intervals
Reduce refuelling
Understand your load profile so you can -
Report on progress
Reduce usage further by better decision making

26. 99% The Hybrid Concept 60% Reduction in runtime BEMS EMS
Add Other power sources
Building Energy Management System manages the loads
Manage the power sources
Manage the loads
Report and analyse
Sweat the asset
Manage the fleet
Connected to the power source(s)
PV – assuming you have enough space to be meaningful
Grid
Genset
Prioritise which source to use first
Recharge the batteries using the cheapest source
Control the dispatch
Prioritise the loads, time, Power and Energy
Collect the data

27. Remote Monitoring Remote fleet management Measure Manage Report
Improve
Configure
Operation
Maintenance – remote diagnostics
Lift the lid on energy usage
Control the sources
Control the loads
Analyse the patterns
Accurately manage your fleet/portfolio
Make informed decisions
Avoid external costs
Accurate Reporting

28. Thank you