Solar Energy Yield. Saskatchewan & Manitoba.


Solar energy yield of optimized solar system in Saskatchewan and Manitoba, Canada with a P95 exceedance probability.
The maps represent the annual energy yield in kWh per kWp of a PV solar system installed on various mounting option: 2-axis (full) Tracker, Vertical Axis Tracker (VAT), and Fixed racking. Continue reading Solar Energy Yield. Saskatchewan & Manitoba.

Solar Energy Map of Alberta & BC, Canada

Solar energy yield of optimized solar system in Alberta and BC, Canada with a P95 exceedance probability.
The maps represent the annual energy yield in kWh per kWp of a PV solar system installed on various mounting option: 2-axis (full) Tracker, Vertical Axis Tracker (VAT), and Fixed racking. Continue reading Solar Energy Map of Alberta & BC, Canada

Solar Maps of Canada (P95)


Solar energy yield of optimized solar system in Canada with a P95 exceedance probability

Notes:

  • Three mounting options: Fixed, Vertical Axis Tracker (VAT)  and  2-axis (full) trackers.
  • Arrays inclination optimized for maximum energy yield  at each  location ( fixed and VAT system only)
  • PV  efficiency is  corrected with temperature and low irradiation losses.
  • Based on 30+ years of solar data from 235 federal weather stations.
  • 95% probability of exceedance (P95).   i.e. there is 95% probability that the average solar energy yield over 25 years (the lifetime of the project) will exceed the level indicated on the map .

LCOE & ROI definition

LCOE

The Levelized Cost Of Energy (LCOE) is a standard methodology used by utilities, policy-maker, and industry to calculate  the cost of electricity produced by a generator over its lifetime. It is the ratio of the initial capital cost plus the present value of all future operational costs (administration, maintenance and fuel) to the present value of all the energy produced during the anticipated lifetime of the project.
For a solar project, the fuel (the sun) is free and without administration costs, the LCOE formula is:

LCOE Formula
where:
LCOE  is in  $/MWh
CapInit = Initial Capital Cost = cost per watt * 106
Mi =  Maintenance cost at year i taking into account inflation (cpi) and calculated at mid-year.  Mi = mY1 * (1+cpi) (i-0.5)
mY1= Maintenance costs $/MW in the first year
cpi = Consumer Price Index
Ei = Energy produced at year I taking into account  annual PV modules derating = enY1 *( 1 – (lid + (dr25 – lid)/lt*(i – 1)))
cpw = Cost per Watt ($/Wp)
enY1 = Energy produced the first year
lid = PV first light induced degradation
dr25= PV total derating after 25 years 
lt = project lifetime
PV = present value : PV(x) = x * (1+bnkr) –(i-0.5)  calculated at mid-year
bnkr = Discount ( or sometimes called bank) rate

ROI

The Return on investment (ROI) is a simple, basic financial benchmark: (Total gain from investment – Total cost of investment) / Total cost of Investment.
In the case of a solar plant, the formula is the following:

ROI Formula
ROI Formula

where:

  • p = ROI period
  • TRFi = Tariff of electricity paid at year i
  • Ei = Energy produced in year i (derated by 20% over 25 years)
  • OMi = O&M cost during year i
  • CAPinit = Initial capital cost
Posted in SRI

LCOE Calculator

LCOE4cThe Levelized Cost of Energy (LCOE) is widely used to define the cost of electricity generation (in $/ MWh) over the life of the solar power plant (typically 25 years)
The LCOE is calculated by dividing the present value of the capital costs + all operating costs over the lifetime of the solar plant by the present value of the electricity generated.
Run the LCOE & ROI Calculator

Instructions

The simulation needs the CDF Player Plug-in installed.

Canada Solar Energy by Monitoring Station

The solar energy map is calculated on data from 235 weather stations across Canada, provided by Environment Canada.
The chart ranks these stations by energy level. It shows the annual energy yield in kWh/a of a 1 kWp system installed on a full-tracker. The units are in kWh/kWp/a or hr/a. (Note: the chart is very large you will need to zoom to view it)
panmaxbarchartThe highest ‘hot-spot’ is Pincher Creek in West-Alberta with 2,528 hr/a, the lowest ‘cool-spot’ is Prince Rupert on the BC west coast, with 1,290 hr/a.

Findings

  1. Pincher Creek, the hottest spot in Canada  is close to Kimberley where EcoSmart is helping develop SunMine, the first large scale solar project in BC.
  2. The South of the Canadian prairies have a huge solar potential.
  3. The highest solar hotspots have energy level at par with Arizona or California,   when the temperature effect on the PV efficiency is considered.
  4. The second lowest point (Sandspit on Haida Gwaii) has still comparable solar energy than most places in Germany.

Shading loss optimization

Trackers

TrackerShading
Interactive Simulation

Some solar trackers, in particular the vertical axis and 2-axis, rotate East/West and as a result may shade each other laterally in addition to North South.

Shading can be reduced by spacing the trackers further apart, but this increases the total solar plant area and capital costs (land, cabling, etc,.)
Configuring the layout of a solar farm with trackers to minimize the shading losses and total area is a complex task, often done by trial and error.

EcoSmart uses computer programs developed in-house to optimize shading losses and site area.

EcoSmart has developed a computer program to minimize shading losses and site area. Our program creates numeric data, but we have also developed a graphical interactive simulation to check the results and have made this available to the public.
Run this interactive simulation to visualize shading in a field of trackers.

Instructions

The simulation needs the CDF Player Plug-in installed.