RETScreen® Introduction
Overview of RETScreen Version 4

Energy efficiency (EE) models for residential, commercial & institutional buildings,
& for industrial facilities & processes

Climate database expanded to 4,700 ground-stations & NASA Satellite
Dataset Integrated within the software to cover populated areas across the
entire surface of planet

Renewable energy, cogeneration & EE models integrated into one software file
& emerging technologies, such as wave & ocean current power added

Project database providing users instant access to key data and information
for hundreds of case studies & project templates

RETScreen file format ( *.ret) - a dramatically smaller file size (<25 KB instead
of 10 MB) that is easily shared over the Internet & which allows the user to create
custom databases for RETScreen

Software & databases translated into 35 languages that cover 2/3 of the world’s
population, and available at the click of the mouse
Project Analysis

Energy resource at project site
(Solar Air Heating Example)
(e.g. solar radiation)

Equipment performance
(e.g. solar absorptivity)

Initial project costs
(e.g. solar collectors)

“Base case” credits
(e.g. conventional cladding)

Annual & periodic costs
(e.g. vandalism)
Photo: NRCan
Financial Analysis

Base case system energy cost
(e.g. retail price of heating oil)

Financing
(e.g. debt ratio & length, interest rate)

Taxes on equipment & income (or savings)

Environmental characteristics of energy displaced
(e.g. oil, natural gas, grid electricity)

Environmental credits and/or subsidies
(e.g. GHG credits, deployment incentives)

Decision-maker’s definition of cost-effective
(e.g. payback period, ROI, NPV, energy production costs)
Financing Options




Natural gas 1,000,000 m3/yr @ $0.40/m3
25% energy reduction
Capital cost $300,000
2% inflation, 20 year project life
En e rg y
S a vin g s
P e rfo rm a n ce
a cco u n t,
S h o rt te rm
L o n g te rm
70% d e b t
70% d e b t
L e a sin g
C o n tra ct*
b o n d s,
C a sh
10% fo r 5 yrs
6% fo r 15 yrs
12% fo r 5 yrs
8% fo r 7 yrs
sto cks
$300,000
$90,000
$90,000
$0
$0
$300,000
P re -ta x IR R - e q u ity
35.90%
61.20%
91.80%
P re -ta x IR R - a sse ts
35.90%
24.10%
29.10%
19.80%
12.40%
3% - 15%
S im p le p a yb a ck
3
3
3
3
4.5
Eq u ity p a yb a ck
2.9
1.9
1.1
Im m e d ia te
Im m e d ia te
Eq u ity
C u m u la tive d ivid e n d
3 yrs
C u m u la tive d ivid e n d
20 yrs
$27,000 to
$312,200
$146,000
$247,300
$62,500
$52,900
$135,000
$180,000 to
$2,478,000
$2,201,000
$2,154,000
$2,062,000
$1,873,000
$900,000
* + 20% c os t for verific ation + 30% c os t for ris k m anagem ent
Project Example: Wind

Basic information:
 2,000 kW wind turbine
 Cost @ $2,000/kW
 Capacity factor @ 23%

Scenario 1:
 Electricity rate @ $0.11/kWh

Scenario 2:
 ecoEnergy incentive @ $0.01/kWh
 or $15/tonne GHG emissions trade
Photo credit: Toronto Hydro/WindShare
Software
Demo
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Wind Energy Project Analysis