2.5 GW of residential PV energy storage to be installed by 2017

IHS reports that the residential PV market is expected to reach 2.5 GW of storage by 2017 because of reduced costs and tariffs, particularly in Europe.

09/10/2013


The market for residential photovoltaic (PV) energy storage systems is expected to boom in the coming years, with cumulative installations amounting to 2.5 GW by 2017, equivalent to the solar power that could be generated by more than 600,000 homes. 

Kick-started by the introduction in May of the German Energy Storage subsidy, cumulative installations are forecast to grow to these heights from a trivial 12 MW in 2012, according to a new report entitled “The Role of Energy Storage in the PV Industry” from information and analytics provider IHS Inc. The number of PV residential energy storage installations will be greater than the total number of residential solar systems in Germany today. 

“Residential PV customers are striving to maximize their own consumption of the energy they are generating,” said Abigail Ward, PV analyst at IHS. “This is because rising electricity prices and decreasing feed-in-tariffs (FiTs) are serving as a disincentive for consumers to export their power to the electricity grid. Such developments, combined with the introduction of the German Energy Storage Subsidy, are forecast to accelerate the overall growth of the residential solar storage market.”

Disincentives

Financial incentives and subsidies, such as FiTs, have made it monetarily attractive for end users to send their excess electricity to the grid. 

However, this is now rapidly changing in established markets. In many countries, incentives are subject to regular reductions following higher-than-anticipated growth in installations, and recent reductions in PV system prices. These reductions, coupled with continually increasing retail electricity prices, mean that self-consumption of energy on-site is a more desirable option for home owners. 

Throwing the FiTs

In Germany and the United Kingdom, the FiT is declining at a steady rate. 

For these countries, the current FiT rate paid for electricity exported to the electricity grid has already fallen below average retail electricity rates. As a result, PV system owners pay a greater amount for electricity imported from the grid than they receive for the energy they sell. Rather than export the energy generated in order to receive the FiT, it is now financially attractive to consume the energy generated by the system on-site. 

“An energy storage solution enables a PV system owner to shift energy from when it is generated to a later time for consumption,” Ward said. “As a result, demand for residential energy storage products will continue to accelerate as PV energy reaches grid-parity in a number of countries.” 

Nonetheless, at today’s prices, the financial gains to be obtained by growing self-consumption do not yet offset the increase in upfront costs associated with the addition of an energy storage solution in a residential PV system over the expected 20-year lifetime of the installation. 

Residential PV storage prices to decrease by 45%

The introduction of the German Energy Storage Subsidy represents a turning point by increasing the return-on-investment of a residential PV system installed with an energy storage solution. At today’s prices, the financial gains to be obtained by growing self-consumption do not yet offset the increase in upfront costs associated with the addition of an energy storage solution in a residential PV system over the expected 20-year lifetime of the installation. The German program, however, can help.

“Not only will the incentive reduce the upfront cost of residential storage solutions deployed in Germany by up to 30%, it will also generate volume in this immature market—and price reductions achieved by mass production will also benefit installations in other countries,” said Sam Wilkinson, PV research manager and co-author of the report. “For battery-based residential PV energy storage systems, IHS predicts an average cost reduction of around 45% during the next five years, largely due to decreases in battery prices.” 

Big growth for big systems

Cost reductions also are projected for larger PV storage installations, spurring growth for commercial and utility-scale systems.

“The market drivers for the installation of storage in large-scale systems differ significantly from those of residential systems,” Wilkinson noted. “Deployment in these massive systems is anticipated to shift from pilot demonstration projects to commercial installations during the next year, and annual installations for the total grid-connected market are forecast to reach nearly 6 GW in 2017.”



No comments
Consulting-Specifying Engineer's Product of the Year (POY) contest is the premier award for new products in the HVAC, fire, electrical, and...
Consulting-Specifying Engineer magazine is dedicated to encouraging and recognizing the most talented young individuals...
The MEP Giants program lists the top mechanical, electrical, plumbing, and fire protection engineering firms in the United States.
Water use efficiency: Diminishing water quality, escalating costs; Lowering building energy use; Power for fire pumps
Building envelope and integration; Manufacturing industrial Q&A; NFPA 99; Testing fire systems
Labs and research facilities: Q&A with the experts; Water heating systems; Smart building integration; 40 Under 40 winners
Maintaining low data center PUE; Using eco mode in UPS systems; Commissioning electrical and power systems; Exploring dc power distribution alternatives
Protecting standby generators for mission critical facilities; Selecting energy-efficient transformers; Integrating power monitoring systems; Mitigating harmonics in electrical systems
Commissioning electrical systems in mission critical facilities; Anticipating the Smart Grid; Mitigating arc flash hazards in medium-voltage switchgear; Comparing generator sizing software
As brand protection manager for Eaton’s Electrical Sector, Tom Grace oversees counterfeit awareness...
Amara Rozgus is chief editor and content manager of Consulting-Specifier Engineer magazine.
IEEE power industry experts bring their combined experience in the electrical power industry...
Michael Heinsdorf, P.E., LEED AP, CDT is an Engineering Specification Writer at ARCOM MasterSpec.