Carbon counter - a global solar community

Making a difference in the fight against climate change.

  • 2011911332.4554 Units of electricity produced
  • 844357440.20097 KG CO2 prevented

Solarcentury is in business for a purpose: to make a meaningful difference in the fight against climate change. How do we measure our success against this overall objective?

We’ve been hard at work crunching numbers so we can demonstrate that with every passing second we’re achieving this mission.

The carbon clock calculates the amount of clean solar electricity generated by every solar installation Solarcentury has sold since we were formed in 1998. And with every unit of solar electricity generated, there’s a corresponding amount of carbon that has been prevented from being released into the atmosphere.

We can say with certainty that we have passed the 1 billion kWh mark – and because during our long history we’re active across 4 continents (10 countries, and counting), we’re confident that this number will continue to grow way into the future.

Electricity generated

To calculate the electricity that is being generated from systems we have sold, we have to take account of a number of factors. In particular, the size of the systems, where they are deployed around the world (and therefore the yield in that particular country) and how long they’ve been installed for because solar PV degrades very slightly over time.

The formula for electricity generation is as follows:

Energy generation = N*YS*(1-D*Y)
N = Nominal power (kWp sold by Solarcentury)
YS = National average yield (kWh/kWp)
D = Degradation factor
Y = Operating year

Carbon prevented

Every country’s grid differs in how much carbon is burned to produce electricity. Therefore, we need to know how much electricity has been produced by our solar PV systems in each of the countries in which we operate. This is multiplied by the ‘carbon factor’ for that country. We then subtract the amount of carbon that’s been used to build and install the solar system and transport it to sites. We then add in the carbon we are saving by planting wildflower meadows at our solar farms. (Unimproved grassland and wildflower meadows store carbon year on year.)

The formula behind prevented CO2 is as follows:

Kg of CO2 prevented = (G*CEF) – ORG CO2 – SUPP CO2 + M
G = Energy generation
CEF = Country Carbon Emission Factor for electricity
ORG CO2 emissions: Emissions from freight
SUPP CO2 emissions: CO2 emissions of suppliers
M = CO2 absorption of planted meadows