As you may be aware, the 2021 Budget speech made reference to a new support scheme to encourage the purchase of Renewable Energy Systems in the domestic sector. Such scheme will be launched in the near future and the Regulator will eventually be accepting applications in connection with this scheme.
The 2021 RES scheme will be slightly different form past PV schemes as it will be incorporating different technologies under one scheme. Basically, the scheme will be split into the following options:
Option A - PV system with standard solar inverter.
Option B - PV system with hybrid inverter.
Option C - Hybrid/battery inverter and battery.
Option D - Battery storage only.
Applicants can only apply for one option with the exception of Option B whereby an applicant may also apply for Option D.
For option C only (Inverter plus battery), the inverter must be rated for the size of total kWp of the existing photovoltaic modules. As such systems where the ratio of inverter nominal ac power at standard testing conditions (STC) is lower than 0.8 times the array nominal power shall not be eligible for the grant.
For options A and B, the minimum system size is 1kWp and for Options C and D the minimum storage size is 2kWh.
In addition to the above, a standard minimum of 10 years warranty will be requested on all options.
As you may be aware, prior to submission of applications, all equipment has to be registered with REWS. In this regard, please note that Government Notice 52 of 2010 was amended to cater for the registration of Energy Storage Systems and now REWS is accepting applications for registration of equipment that meets the following standards:
- Lead Acid Batteries shall be certified to EN 61056-1-2, BS EN 60896-11, 21 and 22 as applicable or an equivalent thereof when so considered by the Standards and Metrology Institute within the Malta Competition and Consumer Affairs Authority;
- The lithium-ion shall be certified to IEC 62619 as applicable or an equivalent thereof when so considered by the Standards and Metrology Institute within the Malta Competition and Consumer Affairs Authority;
- Flow batteries shall be certified to BS EN 62932-1-2 as applicable, or an equivalent thereof when so considered by the Standards and Metrology Institute within the Malta Competition and Consumer Affairs Authority;
Applications for registration of technology can be accepted prior to the launch of the scheme.