Once the Solar Irradiation Measurement campaign is finished, the final analysis will be carried out to evaluate the viability of the solar project for the candidate site.
In this phase, the representative sample of measured data on-site of minimum 12 consecutive months is used in conjunction with the Long-Term Series of Data obtained from the satellite to generate a Typical Meteorological Year TMY.
This TMY compresses a sample of 17+ years of meteorological information.
Data measured every minute coming from station on-site
Data measured every hour coming from the satelite
Uncertainty reduction on Series of Data
by site adaptation of satellite derived data
using on-site measured data
How a Site Evaluation helps the development of a solar project?
Increases security of long-term energy estimates
An important component of risk assessment is confidence in the estimation of energy production as a result of using a particular Typical Meteorological Year. The use of data series from reliable sources for energy modelling, reduces uncertainty and therefore reduces the perceived long-term risk in the total investment for the solar project. As a result, better financial conditions for the project are achieved in addition to allowing a considerable improvement in the engineering design of the solar field.
Obtain realistic estimates of the project cash flow when the PV production rate depends on the time
When the pricing of photovoltaic energy rates depends on when the electricity is generated, it is critical to know the exact representation of the energy generation profile. The Typical Meteorological Year allows you to accurately calculate the intraday electricity generation profile of the photovoltaic system.
It quantifies the uncertainty in the income of a given year and the life span of the project
Banks and investment funds often require the production of energy expressed in a P(90) or even P (95) scenario to determine the risk associated with a project's ability to service its debt obligations and other expenses. The Typical Meteorological Year is used to make estimates of cash flows and energy produced for different probability scenarios over the operational life of the project.
You can see here the list of projects where we have helped our clients.