There’s an old Chinese proverb that says: “The best time to plant a tree was 20 years ago. The second best time is now.”
The point, I suppose, is that while some decisions would have been even better made earlier, there’s not much value in endlessly waiting for the perfect moment either.
Which brings me to a question we hear quite a lot from homeowners thinking about solar panels - “When’s the best time to install them?”
And to paraphrase the proverb slightly, the best time was probably yesterday. The second best time is today.
That might sound slightly simplistic, but it reflects how much the thinking around solar has changed in Ireland over the past few years.
Not that long ago, many people treated solar as something seasonal. You’d start thinking about it once the evenings stretched a bit longer, the hum of lawnmowers returned and you’d had your first 99 of the year.
But increasingly, homeowners are no longer viewing solar as a summer project. They’re viewing it as a long-term energy decision.
The thinking is understandable. Longer days naturally mean more daylight, and stronger solar generation usually happens during spring and summer months.
People also tend to become much more conscious of household energy costs after winter. Once the weather improves, solar often moves from “something to look into eventually” into something homeowners actively start researching.
And visually, you simply notice solar more at that time of year too. You spot new panels appearing on neighbours’ roofs. Somebody mentions they’ve installed a battery. Another person starts talking about charging their EV using solar electricity.
That tends to trigger interest and a certain sense of FOMO.
One of the biggest misconceptions that still lingers is the idea that solar panels somehow stop being worthwhile outside sunny summer weather.
In reality, solar panels generate electricity from daylight rather than heat.
That means they continue producing electricity throughout the year, including during cloudy and overcast conditions.
Obviously, generation levels are usually stronger during spring and summer because daylight hours are longer. But modern solar systems still contribute meaningfully during autumn and winter too.
And importantly, solar is normally judged across the full year rather than any single month.
This is probably the biggest shift in mindset around solar in Ireland recently.
A few years ago, delaying installation until “next spring” felt relatively harmless.
But electricity prices haven’t exactly settled down over the past few months, and more households are now thinking differently about energy costs altogether.
Because every month spent waiting is also another month fully reliant on grid electricity prices.
That doesn’t mean people should rush into solar without proper advice or planning. But it does explain why more homeowners are no longer treating it as a purely seasonal decision.
The conversation has become less about chasing perfect sunshine and more about reducing long-term exposure to unpredictable energy costs.
Another thing many homeowners don’t initially consider is that spring and summer are traditionally the busiest periods for solar enquiries and installations in Ireland.
That can sometimes mean longer waiting times, busier installation schedules and greater demand for surveys and appointments.
So ironically, waiting until “peak solar season” doesn’t always create the advantage people assume it will.
Many homeowners now install systems year-round simply because the long-term value matters more than trying to perfectly time the calendar.
There’s also a practical argument for installing solar before or during winter rather than immediately after it.
Many households only start seriously considering solar once they’ve already gone through another difficult winter of high electricity bills.
Installing earlier means the system is already in place and generating electricity once brighter months arrive again.
And psychologically, many homeowners simply like the idea of heading into winter knowing they’ve already started reducing reliance on imported electricity and volatile energy markets.
Solar systems themselves have evolved quite a bit in recent years too.
Battery storage allows households to store excess electricity generated during the day for use later in the evening.
Electric vehicles have also changed how many homeowners think about electricity usage altogether.
For some households, solar is no longer simply about generating as much electricity as possible during sunny afternoons.
It’s about lowering long-term electricity costs, charging vehicles more affordably, reducing reliance on the grid and creating more predictability around energy bills.
At that stage, people aren’t really thinking about sunshine anymore. They’re thinking about their bills.
Honestly, the best time is usually when your household is ready, your electricity usage justifies it and you want to start reducing exposure to rising energy costs.
There’s no magic month where solar suddenly becomes worthwhile.
Modern systems work throughout the year in Irish conditions, and the long-term value comes from cumulative electricity generation over many years rather than chasing a few extra weeks of summer sunshine.
For many households, waiting for the “perfect” time simply delays the benefits they could already be getting.
Yes. Solar panels continue generating electricity throughout winter, although output is generally lower than during longer summer days.
Summer can be a good time to install solar, but it’s also one of the busiest periods for installers. Many homeowners now install systems throughout the year.
Not necessarily. Waiting may simply delay the electricity savings and energy generation you could already be benefiting from.
Yes. Solar panels generate electricity from daylight rather than direct heat, meaning they still work during cloudy and overcast conditions.
If you’re considering solar, it usually makes more sense to focus on your household’s electricity usage, long-term energy costs and future plans rather than trying to find the “perfect” season to install.
With over 20 years’ experience and more than 25,000 installations across Ireland, Activ8 Solar Energies designs systems around real homes, real electricity usage and long-term energy goals - helping homeowners understand what makes sense for their own situation clearly and without pressure.
If you’d like to explore what solar could look like for your own home, including potential savings, battery options, EV charging and SEAI supports, you can get in touch with the Activ8 team here.
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