This post is part of our “Learn About Solar” series, where we will cover common questions and answer them at a high level. These are meant as general guidelines only. For advice regarding your specific situation, please contact us directly.
We are regularly asked “Does solar really work as advertised?”. Sometimes, this is asked directly as a question. And other times, we hear things like this:
- “There’s too much dust here for solar to work”
- “But what about monsoon? If can’t see the sun, how will solar work?”
- “(Someone I know)…got solar installed, and it stopped working properly after a while. Waste of money!”
To address concerns about the reliability of solar, here is a case study from our direct experience.
Vatsalya Trust is a charitable organization in Mumbai dedicated to the care and rehabilitation of destitute children. Their building has a terraced roof with stairwell access, with plenty of direct sunlight. Oorjan facilitated the design and installation of a 6kWp grid-tied solar PV system on this roof.
Since it was commissioned in May 2015, the system has produced 8360 units of electricity, saving ₹1,08,680 in electricity bills. In terms of environmental impact, that is equivalent to not burning 2500 litres of petrol or growing 152 seedlings for 10 years.
This system is situated in the middle of Mumbai. Other than periodically cleaning the panels, no additional maintenance has been needed. And how consistent is the production? An energy production chart for the past few months, as seen through Oorjan’s proprietary monitoring app, is below.
As you can see, the monthly totals are remarkably consistent, with the lowest month in the chart (Feb ’16) achieving 20.2 units per day. Note that July looks low because we are only 12 days into the month. So how does the monsoon affect production? Not nearly as dramatically as you might think. Last monsoon, in July and August, monthly production averaged slightly over 19 units per day. Even on overcast days, solar panels continue to produce electricity.
This is what the installed system looks like:
Contact us today to join the #solarrevolution!