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CONERGY.COMasia.conergy.com
The Opportunity for Commercial Rooftops:
Technical Considerations and Economics
Bangkok | 6 June 2018 | Jirat Satjipanon, Manager Thailand
CONERGY.COM
CONERGY.COM
As of March 2018
42,449 MW
Energy productionEGAT 37%
IPP 35%
SPP 19%
Import 9%
CONERGY.COM
5
As a first mover in Asia, Conergy has achieved a considerable track
record in the region with over 500 MWp installed
Australia
| Market entry in 2005
| 17 MW installed/ developed
| Largest PV storage project to
date
Legend
Present Market
Emerging Market
Japan
| Market entry in 2013
| 30 MW installed/ developed
| Construction license secured
Philippines
| Market entry in 2011
| 274 MW installed
| Appx. 36% market share
Thailand
| Market entry in 2009
| 133 MW installed
Indonesia
| Market entry in 2012
| 1 MW installed
| 2 MW contracted
Singapore
| Regional HQ
Malaysia
| Market entry in 2009
| Extensive construction
network
274
113
30
13 3
O&M Volume Contracted & Plant Performance
6
Australia* Indonesia*ThailandPhilippines Japan**
33 solar plants 12 15 2 1 3
430 MW
PR % above guarantee
Plant Availability
+ 2.7%
99.6%
+ 2.4%
99.7%
0%
99.9%
* Power plants in Australia & Indonesia are in their first year of operation
** snow issues during first winter season
Talking about rooftop solar in Thailand: the announced program does not provide for FIT
A rooftop solar plant today serves the energy
needs and competes with regular electricity pricing
1) A feed-in-tariff project generates
returns but doen‘t reduce costs
Available space is utilised at a maximum
Every kWh produced is sold to the grid
Pay back time is around 5 years
Double digit returns can be achieved
The host of the rooftop plant still purchases
power from the grid
2) A self-consumption project saves
immediately on the energy bill
Available space is utilised according to demand
Every kWh of clean energy is being used on site
Pay back time is around 6-7 years
Savings accumulate and provide double digit
returns
The power plant owner reduces its energy bill and
becomes more independent
One rooftop – two business models at least
A comparison that works out well:
Solar energy can compete with power from the grid
Grid parity has been achieved
The cost of electricity will increase eventually whereas the cost
of generating power from the sun has decreased significantly
over time beating the average price of power of ~ 4 THB/kWh
Savings delivered by the sun
.
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
Energy billno PV
Energy billw/ PV
THB/kWh Costs Savings
4.1% CAGR
But how to size the right system?
Analysing and understanding the individual load
A rooftop solar power plant should work against the energy bill and suit the
customer needs.
1. Retrieve the consumption data on a high resolution and check the existing energy bill
2. Generate a production profile based on the local irradiation and circumstances on the same resolution
Example of a cold storage company
Energy demand: 10,067,962 kWh/year
Current electricity price: ~ 4 THB/kWh
Self consumption vs. self sufficiency:
Thailand foresees 100% self consumption
Our world is full of energy | 11
As no export of energy is allowed the PV system will be designed carefully
3. Depending on the system size the self sufficiency will vary while consuming all power from the rooftop project
instantly
Example of a cold storage company
Energy demand: 10,067,962 kWh/year
PV power plant: 999.6 kWp
Specific yield: 1476 kWh/kWp
PV production: 1,475,409 kWh per year
2 Main Business Models
Self investment model: ROI 5-6 years, O&M
requirements, EPC must be realiable
PPA model: 15-25 years contract, typically 10-15%
discount, immediate savings
Self-Investment VS PPA
This is why companies should start to consider
the sun as their supplier in Thailand
Cost savings: Producing power yourself and using it instantly is more economical than purchasing a
standard power mix from the grid
Independence: You become more independent from power price developments
Planning security: You freeze part of your energy costs at a low level for approx. 25 years. After
break even only marginal maintenance costs occur. The sun does not bill
No excess energy: We design the individual system the way that is does not export power to the grid
CO2 savings: You improve your carbon footprint and protect the planet
Reputation: You can market your efforts to protect the environment and to provide clean energy to
your company
Thank you for your attention -
Please do not hesitate to contact us
Conergy (Thailand) Ltd.
Unit D1,D2 20th Floor, Silom Complex Building,
191 Silom Road, Silom, Bangrak,
Bangkok, 10500 Thailand
Mr. Jirat Satjipanon
+66 8 9524 2516
