Solar in Mount MarthaThe roof faces the bay. The sun is behind it
Houses in Mount Martha were built to look at the water. On the slopes above the Esplanade that often means the big roof faces point west or south-west towards the bay, and the north face is the small one at the back, cut into the hill or shaded by the trees upslope. So a Mount Martha design rarely starts with a neat north-facing rectangle. It starts with working out how much each face produces across the day, and a west face is more useful than people expect, because it is still generating when the household gets home.
There are really three suburbs here. The older beach houses near the village and South Beach have small, simple roofs and often an old switchboard. The 1990s and 2000s estate homes inland towards Bentons Road have hipped tile roofs with room for a solid system, and many carry a small early array that is now undersized. The large newer homes have big roofs, modern boards and big loads to match. Each needs a different size and a different battery position.
What ties them together is where the house is heading. Our written-up Mount Martha job is a home where heating, hot water and cooking are all electric and the gas line is gone, carried by 15.2kW of solar and a 24.18kWh battery. We size for that end point even if you are only doing the solar this year. See our full range of work in Mount Martha.