Solar PV panels for new builds
Photovoltaic solar panels or Solar PV is becoming a more common feature for people building new houses these days. It can help them meet their Part L obligations and it contributes to lower running costs for homes.
Photovoltaic solar panels convert daylight into electricity.
All new houses being built (since 2008) must install a certain amount of renewable energy. This is in the building regulations, but it’s also a very sensible thing to do. SOlar PV systems have no moving parts and typically are maintenance free. They have a very long lifespan and can last up to 30 years.
We have access to a range of different solar PV panels. For housing schemes we have a good quality solar panel which is easy to install and for the one off homes, we have a high quality solar PV panel which looks fantastic with slate or roof tiles.
To satisfy Part L in the regs, how much energy is required with Solar PV?
The simple answer is your floor area in m2 x 4
This will give you a number. This number is the amount of kwhr’s you must generate from renewables every year.
Example: A new build house is 220m2 and will have no other form of renewable energy.
220 x 4 = 880 kwhr/year
You can achieve this with a 1kwp system or 4 x 250w solar PV panels.
Can I recommend different “renewable” technologies to my client?
What’s the cheapest way to meet Part L in the regs?
Typically Solar PV is the cheapest, though it may not be the most beneficial for you. Sometimes you are better off using a high quality heat pump. This will heat your house and provide you with all your hot water also. You won’t need a gas line or an oil tank with a heat pump. If the house is insulated to a good standard (not passive standard) we should be able to heat most houses for less than €900 per year.