With all the current publicity about possible government cuts many people will think there is no point in installing a renewable system now, but with all the uncertainties and the latest technology offerings, there has never been a better time to invest in generating your own energy.
With a 4kw PV system producing about 3,500 kWh a year, a typical summer day produces much more energy than you need but to meet the demand in December and January would need a much larger PV array.
What if you had storage? This could be storage into batteries or storage by dumping the excess into heating water. Either of these techniques makes more use of your own generated energy and can reduce peak demands on the grid, and even better save your daytime generated energy for your own use in the evening. All these are ways of storing your own generated energy for reuse later.
Currently using your own energy saves, depending on your tariff, around 15p/kWh, over 10p more than the current Feed in Tariff rate, so using your own energy is a reliable, secure, and predictable investment for the future.