1. Community Energy – what next?
CES: Scotland’s Community Energy Development Charity
Community Energy – what next?
Gillian Wilson, CES Head of Development
Scottish Charity Number: SC039673

2. CES Mission: To strengthen and empower local communities by
helping them to own, control and benefit from their local renewable energy resources,
control and reduce their energy costs,
regenerate their communities and
play their part in the low carbon transition.
Scottish Charity, voluntary board, community group membership (about 400)

3. Move to: locally managed decarbonised energy systems
Low carbon energy generation
Matching supply and demand more closely
Requires flexibility in time of use
Energy price changes over the day
More Electric vehicles/low carbon vehicles;
Decarbonising heat

4. Opportunities for community energy from local energy systems

5. and/or a PARALLEL HOT WATER
THE PLATFORM SENDS A SIGNAL
TO A “DYNAMO”
INSTALLED IN YOUR HOME
Diverting unused renewable energy into creating affordable heating
THE TURBINE SENDS A SIGNAL TO A “SMART CONTROL PLATFORM” JUST BEFORE IT
IS SET TO POWER DOWN BECAUSE IT IS NOT ALLOWED TO PUT MORE ENERGY ON TO THE GRID D
and/or a PARALLEL HOT WATER
IMMERSION
HEATER
…THE DYNAMO
POWERS UP YOUR
SECONDARY HEATING
SYSTEM
Such as an INTELLIGENT
QUANTUM STORAGE
HEATER
and/or a PARALLEL
ELECTRIC FLOW BOILER 5 5 5

6. Energy storage

7. Barra and Vatersay - EV Charging
Proposed fast charger at a Community Hall and Café
Two EV chargers already on the island
Rapid Charger at ferry terminal (currently broken)
Slow Charger at council offices
Both are ~6miles away in Castlebay
6kW wind turbine installed at the Community Hall
Plans for solar PV alongside the charger

8. Demand does not always match Supply:
Look first at the green energy demand line – how much energy is used at different times of the day – with two peaks – a smaller one in the morning when everyone is getting up and having breakfast, and then a larger peak when everyone is arriving home in the evening. In the traditional grid management system the there was a relatively consistent baseload of energy supply all day and then enough power stations to meet this large peak of demand in the evening. However now we are moving to renewables this has to change. The Blue line shows an example for a wind turbine with more wind at night and the yellow one with for solar, producing energy only during daylight hours (which will obviously change over the year in Scotland). The peak of wind turbine and solar production of energy does not match the peaks of energy demand shown by the green line.

9. Flexibility - moving time of energy demand and supply
storage
storage
demand
demand
This graph represents this mis-match in energy generation and energy demand when sometimes there is too much energy generation (green surplus area) and sometimes there is not enough energy generation (red deficit area). To manage the matching of energy supply and demand locally then you need to shift demand from deficit periods of the day into times of day when energy is more available. Also, use surplus energy and store it for use when there is a deficit period. This requires some flexibility in the time of use of energy. i.e. ‘Flexibility’

10. Aggregation of flexibility
Flexibility offered by a single home, business, solar PV system, storage battery or EV - not of interest on it own, to the grid
Need to ‘add up’ or ‘aggregate’ many energy users or suppliers to provide a large ‘lump’ of flexibility

11. Local low carbon energy systems require consumer engagement

12. Opportunities for community energy groups and community organisations:
enabling a collective approach
for those not able to engage individually, due to:
Cost barrier
Living in tenements/shared properties
Not aware of opportunities
Don’t know how to engage/not tech savy

13. Communities retaining local
energy systems value:
EV charging income
Access to cheap electricity through storage: use of energy when it is cheaper
Shared access to affordable local renewable energy
Income from flexibility payments for consumers
Community organisations earn income from flexibility payments and aggregation role

14. Building Community Capacity
CES’ Community Energy Futures Programme

15. Gillian Wilson Head of Development Community Energy Scotland Codesk, Techcube, Summerhall Edinburgh EH9 1PL
Scottish Charity Number: SC039673