Gesternova is an energy company that supports renewable energy development in Spain. They offer renewable energy to customers and help renewable energy producers connect to the grid and register with agencies to receive payments. There are several steps and agencies involved in connecting a solar plant to the grid and ensuring the plant owner receives payment for the electricity generated. Gesternova assists plant owners with registration, forecasting energy output, and interacting with grid operators and energy market agencies to ensure payments are processed accurately and on time.

1. Managing the energy purchasing on solar electricity
market
Jorge González Cortés
Gesternova

2. Who is Gesternova?
• Gesternova is an Utility Company founded in 2005.
• The company was founded with the aim to support the development of the
renewable energy into the Spanish market throughout two activities:
• Offering 100% renewable energy with GO´s given by the CNE to our
customers.
• Offering market agent services to renewable energy producers on special
regimen.

3. Our plant is ready
• Once we have switched our solar plant to the public grid, we must register
our plant into the CNE SICILIA system to get revenues from our
investment.
• Those agents who are relevant to achieve this goal are:
• Grid Owner
• REE
• OMIE
• CNE

4. FIRST STEP
A meter is necessary to measure the energy that we generate.

5. First Option
If our plant´s nominal power is up to 450kW,
Grid owner must get the data from our meter.
• Grid owner is allowed to provide estimated or real measurements.
• Grid owner is allowed to do that during a period minor to six
months and is required to regularize estimated measurements on
m+7.

6. Second Option
– If our plant is over 450kW, REE will get the
measurement from our meter.
• In these cases, measurement are always real, unless some failure
had avoided REE to get the data from our meter.
• These generation plants must be registered on SIMEL to
make REE get knowledge of our activity.
• In both cases final destination of
measurement is the CNE, in order to set the
payments.

7. Second Step
• It is indispensable to register at SICILIA, (The
CNE payments system) to get our Feed in
tariff from CNE.
• Otherwise we will not exist in order to receive
our Feed in Tariff.

8. Main Funds, Plants owners or even
professional staff trust a Market Agent to
deal with REE, OMIE and CNE.
Dealing with REE, OMIE and CNE

9. Why?
• Because of the high expertise owned by our company added to the
capability to reduce the impact of deviations on forecasting due to the
“portfolio effect”.
• Because of the optimum quality-cost relationship offered by
Gesternova.
• Because in several cases, specially on PV Plants, owners are investors
and not full time solar industry employees.

10. The path of the energy, from generator to consumer
CustomerUtilityPool
Market
Agent
Generator

11. WHO BUYS THE ELECTRICITY?
There are two paths for the energy

12. Through OMIE
• Through the energy pool (The Market).
• Every day, we forecast the whole amount of energy that our customer
will get to the grid adding all generating plants, alienated by
technologies: Offering Unit
• Then we correct this forecast given the day before through the
intraday market, in order to reduce and screen the deviation impact.

13. Through the grid(REE)
• REE is the System Operator, and must match
the system energy availability with the
consumers demand.
• Every day, we forecast the whole amount of available power and energy
that our customers (power generators) will send to the grid adding all
generating plants, alienated by technologies: Program Unit.
• Depending on the characteristics of the plant, a real time measurement
must be available to send instantaneous information to REE.

14. • Our electricity can be purchased by utilities,
consumers or other market agents, but it is
usually sold to OMIE.
– Even if we agree a PPA with a consumer, agreement must be
acknowledged to OMIE.
So, purchasing is in charge of the OMIE participants “on the other side”.

15. • OMIE pays power generator through the
market agent whenever exists at market
price.
• This amount of money is known as “Baldita”.
• RECUR (A communicating vessel between
Special Regimen and CESUR bid) is already
paid by OMIE.

16. CNE
• CNE is in charge of some payments.
• Feed in tariff is paid by CNE, as long as some
complements as reactive energy transferred
to the grid.
• The difference between the addition of OMIE
payments and our feed in tariff is called
“Prima Equivalente”. Is paid by CNE too, and
it is part of the regulated costs.

17. ARE WE PAID?
Now that we know who, let’s know how

18. SICILIA
Production m
Billing m+1
Payment m+2

19. • The shown scheme happens every month.
• We bear the right to obtain our Feed in tariff
from the first day, of the next month after
getting our last permit and the registration
into the RAIPRE.
• Before we achieve this item, we have the
right to be paid at whole market price.

20. SETTLEMENTS AND NEW SETTLEMENTS

21. • Whenever there is a estimated settlement or
any failure on our meter, a new settlement or
recalculation must be done.
• There are two chances to get the new
settlement:
m+3
• Most common
m+11
• Used when m+3 did not get real measurement.

22. Final Settlement
• If all mechanisms set by CNE regarding new
settlements does not reflect accurately the
real measurement, over or under the
information downloaded by us, there is a “last
chance” to adjust our payments.
• “Third final settlement” Used to adjust the
settlement in which our plant achieved the
equivalent hours limit.

23. Thank you for your attention
jgonzalezcortes@gesternova.com
@jgonzalezcortes
@gesternova
www.gesternova.com